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Author of Naturally Fractured Reservoirs, PennWell Books, Tulsa, Oklahoma (First Edition, 1980; Second Edition 1995; working at present on Third Edition).

Co-author of The Technology of Artificial Lift Methods, Vol.4, Production Optimization of Oil and Gas Wells by Nodal System Analysis. Senior author: Dr. Kermit E. Brown of the University of Tulsa, PennWell Books, Tulsa, Oklahoma (1984).

Co-author of Horizontal Wells. Contributions in Petroleum Geology and Engineering, Volume 9, Gulf Publishing Company, Houston, Texas (1991).

Co-author and Chairman of Committee that prepared Determination of Oil and Gas Reserves, Petroleum Society of CIM Monograph No. 1, Calgary, Canada (First Edition:1994; Second Edition: 2004).

Co-Editor and co-author of Advances in the Study of Fractured Reservoirs, The Geological Society of London, SP 374, Edited by G.H. Spence, J. Redfern, R. Aguilera, T. G. Bevan, J. W. Cosgrove, G. D. Couples and J. M. Daniel (September 2014).

Editor-in-Chief and co-author of SPE Monograph on Unconventional Gas and Tight Oil Exploitation, Society of Petroleum Engineers SPE (July 2018).

Contributor on the subject of Horizontal Wells to the 1993 McGRAW-HILL YEARBOOK OF SCIENCE & TECHNOLOGY (p. 275), an annual publication to supplement the information of the 20-volume ENCYCLOPEDIA OF SCIENCE & TECHNOLOGY.

Co-developer of the Fracture Completion Log (FCL), Servipetrol’s log interpretation package for evaluation of naturally fractured reservoirs.

Involved in the development of other Servipetrol software products, such as WELLTEST-NFR (used for transient pressure analysis), GASDEL (used to determine gas deliverability), WELLHOR (used for drawdown and buildup analysis of horizontal wells), and DECLINE-NFR (used for production decline analysis).

Contributor to the original version of IMEX-DP for dual porosity-systems. IMEX-DP was developed jointly by Servipetrol Ltd. and the Computer Modelling Group of Calgary.

Author of Naturally Fractured Reservoirs, Roberto Aguilera & Associates, Inc., Dallas, Texas (1978).

Co-author of Fractured Reservoir Analysis, an AAPG School (1984, 1985, 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996). Other contributors: Dr. David Stearns (professor of geology at the University of Oklahoma), Dr. Melvin Friedman (professor of geology at Texas A&M), and Dr. Ronald Nelson (structural geologist at Amoco).

Co-author of Practical Log Analysis, a 22-part series published in the Oil and Gas Journal (1979). Several other contributors.

Author Geologic Aspects of Naturally Fractured Reservoirs, in “AAPG Treatise of Petroleum Geology”, Reprint Series No. 3, compiled by Edward A. Beaumont and Norman H. Foster (1987), p. 260.

Author of Coalbed Methane, Formation Evaluation by Well Logs, Pressure Transient Testing and Well Deliverability, prepared for the China-Alberta Petroleum Center as part of a seminar on Gas Reservoir Management presented in Beijing, China (September 1992).

Author of Formation Evaluation of Naturally Fractured Reservoirs, in “Development Geology Reference Manual,” AAPG Methods in Exploration Series No. 10, edited by Diana Morton-Thompson and Arnold M. Woods (1992), p. 192.

Author of Fractured Reservoirs, Regional Exploration Seminar - Part III, prepared for Petro-Vietnam, Philippines National Oil Company, and Philippines Department of Energy. A Seminar sponsored by Petro-Canada on behalf of Canadian International Development Agency, CIDA (February 1994).

Author of Naturally Fractured Reservoirs, presented at the CSEG/CSPG Joint Convention, Calgary, Canada (May 9, 1994).

Co-author of "Gas and Gas-Condensate Well Testing," presented at the Southwest Petroleum Institute, Nanchong, Sichuan, People's Republic of China (January 8-26, 1996).

Co-author of "Development and Production of Low Permeability Gas Reservoirs," presented at the Southwest Petroleum Institute, Nanchong, Sichuan, People's Republic of China (June 16-27, 1997).

Author of Naturally Fractured Gas Reservoirs, presented at the SPE Gas Technology Symposium held in Calgary, Canada (March 15, 1998).

Co-author of Geological and Engineering Aspects of Naturally Fractured Reservoirs, oil and gas industry short course (2000 and 2001), co-author: Dr. William Jamison.

Co-author of Shale Gas Reservoirs, a monthly 9-part series published for the Canadian Society of Petroleum Geologists CSPG (2011).

As a result of research conducted throughout the years, I authored or co-authored the following articles/discussions/abstracts starting in 1972:

1. "A Comparison of Water Saturation Values Determined from Capillary Pressure Measurements and Logs," Roberto Aguilera, presented at the SPE Regional Student Paper Contest held in Tulsa, Oklahoma (April 16, 1972).

2. "Analysis of Naturally Fractured Reservoirs from Sonic and Resistivity Logs," Roberto Aguilera, Journal of Petroleum Technology (November 1974) 1233-1238 (Refereed Journal).

3. "Graphical Solution of Imbibition Equations Used to Predict Oil Recovery by Water Influx in Naturally Fractured Reservoirs," Roberto Aguilera, Journal of Petroleum Technology (November 1975) 1526-1528 (Refereed Journal).

4."Analysis of Naturally Fractured Reservoirs from Conventional Well Logs," Roberto Aguilera, Journal of Petroleum Technology (July 1976) 764-772 (Refereed Journal).

5. "Economic Analysis of Acceleration Projects," Roberto Aguilera, SPE paper 6086 presented at the 51st Annual Fall Technical Conference and Exhibition held in New Orleans, La. (October 3-6, 1976) (Refereed Abstract, Full Paper in Conference Proceedings).

6. "Current Status on the Study of Naturally Fractured Reservoirs," The Log Analyst (May - June 1977) 3-23. Roberto Aguilera, H. K. van Poollen (Refereed Journal).

7."Discussion on Dual-Spacing TDT Applications in Marginal Conditions," Roberto Aguilera, Journal of Petroleum Technology (January 1978).

8. "Combined Log Analysis and Material Balance Help to Explain Performance of Naturally Fractured Reservoirs below the Bubble Point," Roberto Aguilera, The Log Analyst (November - December 1977) (Refereed Journal).

9. "The Uncertainty of Evaluating Original Oil-In-Place in Naturally Fractured Reservoirs," Roberto Aguilera, Trans., 19th Annual Symposium of SPWLA, El Paso, Texas (June 13-15, 1978) (Refereed Abstract, Full Paper in Conference Proceedings).

10. "Log Analysis of Gas Bearing Fracture Shales in the Saint Lawrence Lowlands of Quebec," Roberto Aguilera, Paper SPE 7445 presented at the Annual Fall Meeting held in Houston (October 1 - 3, 1978) (Refereed Abstract, Full Paper in Conference Proceedings).

11. "Geologic Aspects of Naturally Fractured Reservoirs Explained," Roberto Aguilera, H. K. van Poollen. Oil and Gas Journal (December 18, 1978) 47-51.

12. "Naturally Fractured Reservoirs - Several Techniques Evaluate Well Test Data," Roberto Aguilera, Roberto Aguilera, Oil and Gas Journal (January 22, 1979) 68-73. Co-author: Dr. H. K. van Poollen.

13. "Naturally Fractured Reservoirs - Porosity and Water Saturation Can Be Estimated from Well Logs," Roberto Aguilera, Oil and Gas Journal (January 8, 1979) 101-108. Co-author: Dr. H. K. van Poollen.

14. "Naturally Fractured Reservoirs - Type Curves, Pressure Interference Aid Well Test Evaluation," Roberto Aguilera, Oil and Gas Journal (February 5, 1979) 56-62. Co-author: Dr. H. K. van Poollen.

15. "Naturally Fractured Reservoirs - Choice of Completion Method Affects Productivity," Roberto Aguilera, Oil and Gas Journal (February 19, 1979) 106-108. Co-author: Dr. H. K. van Poollen.

16. "Fractured Shales Present an Attractive Gas Potential," Roberto Aguilera, Oil and Gas Journal (March 5, 1979) 167-178. Co-author: Dr. H. K. van Poollen.

17. "Naturally Fractured Reservoirs - How to Determine Primary Reservoir Performance," Roberto Aguilera, Oil and Gas Journal (March 19, 1979), 98-102. Co-author: Dr. H. K. van Poollen.

18. "A New Approach for Log Analysis of the Pulsed Neutron and Resistivity Log Combination," Roberto Aguilera, Journal of Petroleum Technology (April 1979), 415-418 (Refereed Journal).

19. "Naturally Fractured Reservoirs - Evaluating the Effects of Dispersed Gas Injection," Roberto Aguilera, Oil and Gas Journal (April 2, 1979), 131-137. Co-author: Dr. H. K. van Poollen.

20. "Naturally Fractured Reservoirs - Imbibition Displacement and Fracture Orientation Effects," Roberto Aguilera, Oil and Gas Journal (April 16, 1979) 75-78. Co-author: Dr. H. K. van Poollen.

21. "Numerical Simulation Applies to Fractured Reservoirs," Roberto Aguilera, Oil and Gas Journal (May 7, 1979) 72-74. Co-author: Dr. H. K. van Pollen.

22. "Studies Show Occurrence of Fractured Reservoirs," Roberto Aguilera, Oil and Gas Journal (May 21, 1979) 70-76. Co-author: Dr. H. K. van Pollen.

23. "Naturally Fractured Reservoirs - How to Analyze Reservoir Economics," Roberto Aguilera, Oil and Gas Journal (June 4, 1979) 157-160. Co-author: Dr. H. K. van Poollen.

24. "Uncertainty in Log Calculations Can Be Measured," Roberto Aguilera, Oil and Gas Journal (September 10, 1979) 126-128.

25. "Yacimientos Naturalmente Fracturados," Roberto Aguilera, (In Spanish), Petróleo Internacional (September 1979) 50-56.

26. "Analísis de Presiones en Yacimientos Naturalmente Fracturados," Roberto Aguilera, (In Spanish), Petróleo Internacional (October 1979).

27. "Recuperación Primaria y Secundaria de Yacimientos Naturalmente Fracturados," Roberto Aguilera, (In Spanish), Petróleo Internacional (November 1979).

28. "Naturally Fractured Reservoirs Performance Forecast Below the Bubble Point," Roberto Aguilera, Fifth Technical Symposium, Doha, Qatar (January 1981). Co-author: Dan Tappmeyer (Refereed Abstract, Full Paper in Conference Proceedings).

29. "Interpretación de Pérfiles en Yacimientos Naturalmente Fracturados," (In Spanish), Petróleo Internacional (October 1981). Roberto Aguilera, Co-authors: Luis Acevedo and Néstor Martinez.

30. "Evaluación de Presiones en Yacimientos Naturalmente Fracturados," (In Spanish), Petróleo Internacional, (November 1981). Roberto Aguilera, Co-authors: Luis Acevedo and Néstor Martinez.

31. "Cálculo del Caudal Máximo de Producción sin Generar Problemas Prematuros de Conificación de Gas y/o Agua en Yacimientos Naturalmente Fracturados," Roberto Aguilera, (In Spanish), Petróleo Internacional, (December 1981). Co-authors: Luis Acevedo and Néstor Martinez.

32. "Pronóstico de Recuperacion Primaria en Yacimientos Naturalmente Fracturados," Roberto Aguilera, (In Spanish), Petróleo Internacional, (January 1982). Co-authors: Luis Acevedo and Néstor Martinez.

33. "Pronóstico de Recuperacion Secundaria en Yacimientos Naturalmente Fracturados," Roberto Aguilera, (In Spanish), Petróleo Internacional, (February 1982). Co-authors: Luis Acevedo and Néstor Martinez.

34. "Conceptos para Evaluaciones Economicas," Roberto Aguilera, (In Spanish), Petróleo Internacional, (March 1982). Co-authors: Luis Acevedo and Néstor Martinez.

35. "Exploring for Naturally Fractured Reservoirs - A Petroleum Engineer's Point of View." Roberto Aguilera, Abstract in AAPG Bulletin (February 1982) v. 66, p. 242.

36. "FCL - A Computerized Well Log Interpretation Process for the Evaluation of Naturally Fractured Reservoirs," Roberto Aguilera, Journal of Canadian Petroleum Technology (January-February 1982) 31-37, co-author: Luis Acevedo (Refereed Journal).

37. "Relative Permeability Concepts for Predicting the Performance of Naturally Fractured Reservoirs," Roberto Aguilera, Journal of Canadian Petroleum Technology (September - October 1982) 41-48 (Refereed Journal).

38. "Exploring for Naturally Fractured Reservoirs," Roberto Aguilera, SPWLA Twenty-Fourth Annual Logging Symposium, paper C (June 27-30, 1983) (Refereed Abstract, Full Paper in Conference Proceedings).

39. "Discussion of New Pressure Transient Analysis Methods for Naturally Fractured Reservoirs," Roberto Aguilera, Journal of Petroleum Technology (May 1984) 849-581.

40. “Discussion of a Variable Cementation Exponent, m, for Fractured Carbonates", Roberto Aguilera, in Letters to Editor," The Log Analyst (May-June 1984) 3-6.

41. "Some Important Considerations in Naturally Fractured Reservoir Simulation," Roberto Aguilera, Computer Modelling Group Report R8.06 (September 1985), co-authors: L. X. Nghiem and D. A. Collins.

42. "Discussion of What Discounted Cash Flow Rate of Return Never Did Require," Roberto Aguilera, Journal of Petroleum Technology (June 1986) 676-678.

43. "An Approximate Solution of Linear Flow in Naturally Fractured Reservoirs," Roberto Aguilera, SPE paper 16442 listed in New Papers, Journal of Petroleum Technology (February 1987).

44. "Reservoir Engineering Considerations for Naturally Fractured Reservoirs," in Naturally Fractured Reservoirs: Analysis and Evaluation, Roberto Aguilera, a Geotechnical Resources Seminar, Calgary, Alberta (October 1987).

45. "Well Test Analysis of Naturally Fractured Reservoirs," Roberto Aguilera, SPE Formation Evaluation (September 1987) 239-252 (Refereed Journal).

46. "Multiple Rate Analysis for Pressure Buildup Test in Reservoir with Tectonic, Regional and Contractional Fractures," Roberto Aguilera, SPE Formation Evaluation (September 1987) 253-260 (Refereed Journal).

47. "Effect of Wellbore Storage and Skin in the Transient Testing of Bounded Naturally Fractured Reservoirs," Roberto Aguilera, SPE paper 17001 listed under New Papers, Journal of Petroleum Technology (June 1987), page 648.

48. "Geologic Aspects of Naturally Fractured Reservoirs," Roberto Aguilera, AAPG Treatise of Petroleum Geology, No. 3, Reservoir Properties I, compiled by E.A. Beaumont and N.H. Foster, Tulsa Oklahoma (1987) 260-305 (Refereed Journal).

49. "Effect of Wellbore Storage, Skin and Outer Reservoir Boundaries on the Transient Behaviour of Naturally Fractured Reservoirs with Hydraulic Vertical Fractures," Roberto Aguilera, SPE paper 17023 listed under New Papers, Journal of Petroleum Technology (January 1988).

50. "Well Test Analysis of Pumping Wells in Multiphase Naturally Fractured Reservoirs," Roberto Aguilera, SPE 17545 presented at the 1988 Rocky Mountain Regional Meeting, Casper, Wyoming (May 16-18, 1988), Co-authors: Matt Houston, S.L. Podio, S.J. Song (Refereed Abstract, Full Paper in Conference Proceedings).

51. "New Methods for Evaluation of Shaly Formations by Well Logs," Roberto Aguilera, SPE 17517 presented at the 1988 Rocky Mountain Regional Meeting, Casper, Wyoming (May 16-18, 1988) (Refereed Abstract, Full Paper in Conference Proceedings).

52. "WELLTEST-NFR: A computerized Process for Transient Pressure Analysis of Multiphase Reservoirs with Single, Dual or Triple Porosity Behaviour," Roberto Aguilera, paper No. 88-39-52 presented at the 39th Annual Technical Meeting of the Petroleum Society of CIM held in Calgary, Alberta (June 12-16, 1988), Co-author: Se Jong Song (Refereed Abstract, Full Paper in Conference Proceedings).

53. "Unsteady State Water Influx in Naturally Fractured Reservoirs," Roberto Aguilera, paper No. 88-39-64 presented at the 39th Annual Technical Meeting of the Petroleum Society of CIM held in Calgary, Alberta (June 12-16, 1988) (Refereed Abstract, Full Paper in Conference Proceedings).

54. "An Overview of Log Interpretation, Well Test Analysis and Reservoir Performance of Naturally Fractured Reservoirs - Their Relationship to Geomechanics," Roberto Aguilera, Petroleum Society of CIM Geomechanics Seminar, Calgary, Alberta (April 21-22, 1988).

55. "Determination of Subsurface Distance between Vertical Parallel Natural Fractures Based on Core Data," Roberto Aguilera, AAPG Bulletin, vol.72 (July 1988) 845-851 (Refereed Journal).

56. "Well Test Analysis of Dual-Porosity Systems Intercepted by Hydraulic Vertical Fractures of Finite Conductivity," Roberto Aguilera, SPE paper 18948 presented at the SPE Joint Rocky Mountain Regional/Low Permeability Reservoirs Symposium and Exhibition held in Denver, Colorado (March 6-8, 1989) (Refereed Abstract, Full Paper in Conference Proceedings).

57. "A New Method for Analysis of the Nuclear Magnetic Log-Resistivity Log Combination," Roberto Aguilera, Journal of Canadian Petroleum Technology (January-February 1990) 67-71 (Refereed Journal).

58. "Extensions of Pickett Plots for the Evaluation of Shaly Formations by Well Logs," Roberto Aguilera, The Log Analyst (December 1990) (Refereed Journal).

59. "Transient Pressure Analysis of Horizontal Wells in Anisotropic Naturally Fractured Reservoirs," Roberto Aguilera, SPE Formation Evaluation (March 1991) 95-100. Co-author: M.C. Ng (Refereed Journal).

60. "An Approximate Solution of Linear Flow in Naturally Fractured Reservoirs," Roberto Aguilera, The Journal of Canadian Petroleum Technology (May - June, 1991) vol. 30, No. 3, p. 86-90 (Refereed Journal).

61. "Testing of Horizontal Gas Wells in Anisotropic Naturally Fractured Reservoirs," Roberto Aguilera, SPE paper 22674 presented at the 66th Annual Technical Conference and Exhibition, Dallas, Texas (October 6-9, 1991) (Refereed Abstract, Full Paper in Conference Proceedings).

62. "Decline Curve Analysis of Hydraulically Fractured Wells in Dual-Porosity Reservoirs," Roberto Aguilera, SPE paper 22938 presented at the 66th Annual Technical Conference and Exhibition, Dallas, Texas (October 6-9, 1991). Co-author: M. C. Ng (Refereed Abstract, Full Paper in Conference Proceedings).

63. "Simulation of a Gas Naturally Fractured Reservoir: A Case History," Roberto Aguilera, SPE paper 22920 presented at the 66th Annual Technical Conference and Exhibition, Dallas, Texas (October 6-9, 1991). Co-authors: L.N. Franks and A.D. Au (Refereed Abstract, Full Paper in Conference Proceedings).

64. "Transient Pressure Analysis of Multiphase Naturally Fractured Reservoirs - Recent Developments in Multiphase Transport in Porous Media," Roberto Aguilera, Third Symposium on Multiphase Transport in Porous Media, Winter Annual Meeting of the American Society of Mechanical Engineers, Atlanta, Georgia (Dec. 1-6, 1991).

65. "Well Test Analysis of a Naturally Fractured Gas Reservoir - A Case History," Roberto Aguilera, The Journal of Canadian Petroleum Technology (April 1992). Co-authors: L.N. Franks and A.D. Au (Refereed Journal).

66. "DECLINE-NFR, A Computerized Process for Decline Curve Analysis of Reservoirs with Single and Dual-Porosity Behavior," Roberto Aguilera, CIM paper 92-76 presented at the Annual Technical Conference, Calgary, Canada (June 7-10, 1992) Co-author: M.C. Ng (Refereed Abstract, Full Paper in Conference Proceedings).

67. "Undiscovered Naturally Fractured Reservoirs - Why and How, A Petroleum Engineer's Point of View," Roberto Aguilera, presented at the AAPG Annual Convention, Calgary, Canada (June 21-24, 1992) (Refereed Abstract, Full Paper in Conference Proceedings).

68. "Discussion of Advances in Practical Well Test Analysis," Roberto Aguilera, Journal of Petroleum Technology (March 1993), pp. 278-279. Co-author: M.C. Ng.

69. "Advances in the Study of Naturally Fractured Reservoirs," Roberto Aguilera, Distinguished Author Series, The Journal of Canadian Petroleum Technology (May 1993), vol. 32, No. 5, pp. 24-26 (Refereed Journal).

70. "Isochronal Testing of a Gas Naturally Fractured Reservoir - A Case History," Roberto Aguilera, CIM paper 92-91 presented at the Annual Technical Conference, Calgary, Canada (June 7-10, 1992) Co-authors: L.N. Franks and A.D. Au. Published in The Journal of Canadian Petroleum Technology (October 1993) Vol. 32, No. 8 (Refereed Journal).

71. "Formation Evaluation of Naturally Fracture Reservoirs," Roberto Aguilera, in Development Geology Reference Manual, edited by Diana Morton-Thompson and Arnold M. Woods, AAPG Methods in Exploration Series No. 10, Tulsa, Oklahoma (1993), pp. 192-194.

72. "Definitions and Determination of Oil and Gas Reserves," Roberto Aguilera, presented at the 14th World Petroleum Congress, Stavanger, Norway, John Wiley & Sons Ltd. (May 19-June 1, 1994). Co-authors: Petroleum Society of CIM Monograph Committee (Refereed Abstract, Full Paper in Conference Proceedings).

73. "Well Test Analysis of Horizontal Wells in Bounded Naturally Fractured Reservoirs," Roberto Aguilera, paper CIM 94-13 presented at the Petroleum Society of CIM and AOSTRA Technical Conference held in Calgary, Alberta (June 12-15, 1994). Co-author: M.C. Ng. Published in The Journal of Canadian Petroleum Technology (July 1999) Vol.38, No. 7, pp. 20-24 (Refereed Journal).

74. "Micro-Simulation of Naturally Fractured Cores," Roberto Aguilera, paper CIM 94-79 presented at the Petroleum Society of CIM and AOSTRA Technical Conference held in Calgary, Alberta (June 12-15, 1994). Co-author: A.D. Au (Refereed Abstract, Full Paper in Conference Proceedings).

75. "Formation Evaluation of Coalbed Methane Reservoirs," Roberto Aguilera, The Journal of Canadian Petroleum Technology (November 1994), Vol. 33, No. 9, pp. 22-28 (Refereed Journal).

76. "Pressure Analysis of Infinite, Semi-Infinite and Closed Rectangular Naturally Fractured Reservoirs," Roberto Aguilera, presented at the 46th Annual Technical Meeting of the Petroleum Society of CIM, Banff, Alberta, Canada (May 14-17, 1995). Co-author: M.C. Ng. Published in The Journal of Canadian Petroleum Technology (November 1997) Vol. 36, No. 10 (Refereed Journal).

77. "Formation Evaluation of Triassic Naturally Fractured Carbonates in British Columbia," Roberto Aguilera, paper No. 96-48 presented at the 47th Annual Technical Meeting of the Petroleum Society of CIM, Calgary, Alberta, Canada (June 10-12, 1996). Published in The Journal of Canadian Petroleum Technology (July 1998) Vol. 37, No. 7 (Refereed Journal).

78. "Well Test Analysis of Naturally Fractured Condensate Reservoirs," Roberto Aguilera, paper No 97-33 presented at the 48th Annual Technical Meeting of the Petroleum Society of CIM, Calgary, Alberta, Canada (June 8-11, 1997). Co-author: M. C. Ng. Published in The Journal of Canadian Petroleum Technology (July 1999) Vol. 38, No. 7, pp. 55-60 (Refereed Journal).

79. "Well Test Analysis of Multi-Layered Naturally Fractured Reservoirs," Roberto Aguilera, paper No 98-49 presented at the 49th Annual Technical Meeting of the Petroleum Society of CIM in Calgary, Alberta (June 8-10, 1998). Published in The Journal of Canadian Petroleum Technology (July 2000) Vol. 39, No. 7, pp. 31-37 (Refereed Journal).

80. "Comparison of Water Saturation Values Determined from Capillary Pressure Measurements and Old Logs," Roberto Aguilera, paper No 98-82 presented at the 49th Annual Technical Meeting of the Petroleum Society of CIM held in Calgary, Alberta (June 8-10, 1998. Published in The Journal of Canadian Petroleum technology (September 2000) Vol. 39, No. 9 (Refereed Journal).

81. "Geologic Aspects of Naturally Fractured Reservoirs," Roberto Aguilera, The Leading Edge (December 1998), pp. 1667-1670.

82. "Controversial: Is It Possible to Have Two (or more) Different, Well-Defined Water-Oil Contacts Within a Single, Closed Naturally Fractured Reservoir?" Roberto Aguilera, paper No. 99-32 presented at the CSPG and Petroleum Society of CIM Joint Convention held in Calgary, Alberta (June 14-18, 1999) (Refereed Abstract, Full Paper in Conference Proceedings).

83. "Recovery Factors and Reserves in Naturally Fractured Reservoirs," Roberto Aguilera, Distinguished Author Series, Journal of Canadian Petroleum Technology (July 1999) Vol. 38, No. 7, pp. 15-18 (Refereed Journal).

84. "The Use of Pickett Plots for Reservoir Enhancement Characterization," Roberto Aguilera, presented at the 16th World Petroleum Congress held in Calgary, Canada (June 11-15, 2000). Co-author: Maria S. Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

85. "Geology and Reservoir Characterization of the Fractured Cimarrona Formation (Maestrichtian) in the Guaduas Field, Magdalena Valley of Colombia - A Potential Giant Oil Field," Roberto Aguilera, presented at the 16th World Petroleum Congress held in Calgary, Canada (June 11-15, 2000), Co-author: Russ D. Cunningham (The GHK Companies) (Refereed Abstract, Full Paper in Conference Proceedings).

86. "Well Test Analysis of Multi-Layered Naturally Fractured Reservoirs with Variable Thickness and Variable Fracture Spacing," Roberto Aguilera, presented at the Canadian International Petroleum Conference Held in Calgary (June 12-14, 2001) (Refereed Abstract, Full Paper in Conference Proceedings). Published in Journal of Canadian Petroleum Technology (December 2001), vol. 12, pp. 9-12. Co-author: Maria S. Aguilera.

87. "The Integration of Capillary Pressures and Pickett Plots for determination of Flow Units and Reservoir Containers," Roberto Aguilera, SPE 81196-PA presented at the 2001 SPE Annual Technical Conference and Exhibition held in New Orleans, Louisiana (September 30-October 3, 2001). Co-author: Maria S. Aguilera. Published in SPE Reservoir Evaluation and Engineering (December 2002) (Refereed Journal).

88. “Aspectos Geológicos y de Ingeniería en Yacimientos Naturalmente Fracturados,” Roberto Aguilera, Revista Fuentes, Universidad Industrial de Santander, Bucaramanga, Colombia (2001), pp. 9-18. Co-author: Maria S. Aguilera (Refereed Journal).

89. "Incorporating Capillary Pressure, Pore Throat Aperture Radii, Height Above Free Water Table, and Winland r35 Values on Pickett Plots", Roberto Aguilera, AAPG Bulletin (April 2002), vol. 86, No. 4, pp. 605-624 (Refereed Journal).

90. “Reducing Gas Production Decline Through Dewatering: A Case History from the Naturally Fractured Aguarague Field, Salta, Argentina,” Roberto Aguilera, SPE 75512 presented at the Gas Technology Symposium held in Calgary, Canada (April 30-May 2, 2002). Co-authors: J. J. Conti and E. Lagrenade. Published in SPE Reservoir Evaluation and Engineering (December 2003), pp. 376-386 (Refereed Journal).

91. “Trucking of Compressed Natural Gas (CNG) from the Naturally Fractured Galt Field in the Gaspe Area of Quebec, Canada,” Roberto Aguilera, SPE 75673 presented at the Gas Technology Symposium held in Calgary, Canada (April 30-May 2, 2002). Co-author: Jean Yves Lavoie (Refereed Abstract, Full Paper in Conference Proceedings).

92. “Exploration Efforts in the Galt Area: First Economic Hydrocarbon Discovery in the Eastern Gaspe Peninsula,” Roberto Aguilera, presented at the CSPG Diamond Jubilee Convention, Calgary, Canada (June 3-7, 2002). Co-authors: Jean-Yves Lavoie and Jean-Sebastien Marcil (Abstract) (Refereed Abstract, Full Paper in Conference Proceedings).

93. “Determination of Matrix Flow Units in Naturally Fractured Reservoirs,” Roberto Aguilera, Petroleum Society of CIM paper 2002-157 presented at the Canadian International Petroleum Conference held in Calgary, Canada (June 11-13, 2002). Published in Journal of Canadian Petroleum Technology (December 2003), vol. 12, pp. 9-12 (Refereed Journal).

94. "Improved Models for Petrophysical Analysis of Dual Porosity Reservoirs," Roberto Aguilera, Co-author: Maria S. Aguilera, Petrophysics (January-February, 2003), vol. 44, No. 1, pp. 21-35 (Refereed Journal).

95. “Geologic and Engineering Aspects of Naturally Fractured Reservoirs,” Roberto Aguilera, CSEG Recorder (February 2003), vol. 28, no. 2, pp. 44-49.

96. “Net Pay in Naturally Fractured Reservoirs,” Roberto Aguilera, CSPG Reservoir (June 2003), vol.30, Issue 6, pp. 28-29.

97. “Effect of Fracture Compressibility on Oil Recovery from Stress-Sensitive Naturally Fractured Reservoirs,” Roberto Aguilera, Petroleum Society of CIM paper 2003-113 presented at the Canadian International Petroleum Conference in Calgary, Canada (June 10-12, 2003). Published in Journal of Canadian Petroleum Technology (December 2006) 49-59 (Refereed Journal).

98. “Discussion of Trends in Cementation Exponents (m) for Carbonate Pore Systems,” Roberto Aguilera, Petrophysics (Sept-Oct, 2003), vol. 44, No. 5, pp. 301-305.

99. “Integration of Geology, Petrophysics and Reservoir Engineering for Characterization of Carbonate Reservoirs through Pickett Plots,” Roberto Aguilera, AAPG Bulletin (April 2004), vol. 88, No. 4, pp. 433-446 (Refereed Journal).

100. “A Triple Porosity Model for Petrophysical Analysis of Naturally Fractured Reservoirs,” Roberto Aguilera, Co-author: Roberto F. Aguilera, Petrophysics (March-April 2004), vol. 45, No. 2, pp. 157-166 (Refereed Journal).

101. “A Simplified Approach to Well Test Analysis of Naturally Fractured Reservoirs,” Roberto Aguilera, paper 2004-110 presented at the Canadian International Petroleum Conference in Calgary, Canada (June 8-10, 2004) (Refereed Abstract, Full Paper in Conference Proceedings).

102. “Effect of Naturally Fractured Aquifers on Oil Recovery from Stress Sensitive Naturally Fractured Reservoirs,” Roberto Aguilera, paper 2004-111 presented at the Canadian International Petroleum Conference in Calgary, Canada (June 8-10, 2004). Published in Journal of Canadian Petroleum Technology (July 2007), vol. 46, No. 7, pp. 43-48 (Refereed Journal).

103. “Maximizing Asset Value of Naturally Fractured Reservoirs through Production Data Interpretation” Roberto Aguilera, presented by invitation at the Panel Discussion, Canadian International Petroleum Conference in Calgary, Canada, Abstract (June 8-10, 2004).

104. “Oil Field Techniques for Characterizing Fractured Reservoirs,” Roberto Aguilera, presented by invitation at the 2004 U.S. EPA/NGWA Fractured Rock Conference on fractured rock remediation, Portland, Maine, Abstract (Sept 13-15, 2004).

105. “Naturally Fractured Reservoirs,” Roberto Aguilera, presented by invitation at the 2005 Latin America & Caribbean Distinguished Lecturer Forum held in Rio de Janeiro, Brazil, Abstract (March 7-8, 2005).

106. “Radius and Linear Distance of Investigation, and Interconnected Pore Volume in Naturally Fractured Reservoirs,” Roberto Aguilera, paper 2005-250 presented at the Canadian International Petroleum Conference in Calgary, Canada (June 7-9, 2005). Published in the Journal of Canadian Petroleum Technology (December, 2006) 72-77 (Refereed Journal).

107. “Reservoir Characteristics, Depositional Environments and Potential Oil/Gas Rates of Devonian and Silurian Drilling Targets in the Gaspe Basin, Quebec,” Roberto Aguilera, presented at the CSPG Core Conference held in Calgary, Canada (June 23-24, 2005). Co-authors: Jean Sebastian Marcil and Martin Trobec (Refereed Abstract, Full Paper in Conference Proceedings).

108. “Exploitation of Naturally Fractured Reservoirs,” Roberto Aguilera, Keynote Technical Conference presented by Invitation at Ingepet V, Lima, Peru, Abstract (November 8-11, 2005).

109. “Experiences in the Sedimentary Basin of Quebec with Naturally Fractured Reservoirs,” Roberto Aguilera, Keynote Technical Conference presented by invitation at the Oil and Gas Promotional Presentations, Quebec Exploration 2005, Quebec City, Canada, Abstract (November 22-23, 2005).

110. “Discussion of Sandstone vs. Carbonate Petroleum Reservoirs: A Global Perspective on Porosity-Depth and Porosity-Permeability Relationships,” Roberto Aguilera, AAPG Bulletin (May 2006) (Refereed Journal).

111. “Effect of Fracture Compressibility on Gas-in-Place Calculations of Stress-Sensitive Naturally Fractured Reservoirs," Roberto Aguilera, SPE paper 100451-PP presented at the Gas Technology Symposium held in Calgary, Canada (May 15-17, 2006). SPE Reservoir Evaluation and Engineering (April 2008), pp. 307-310. (Refereed Journal).

112. “Effect of Fracture Dip on Petrophysical Evaluation of Naturally Fractured Reservoirs,” Roberto Aguilera, paper 2006-132 presented at the Canadian International Petroleum Conference held in Calgary, Canada (June 13-15, 2006). Co-author: Carlos G. Aguilera. Journal of Canadian Petroleum Technology (July 2009). (Refereed Journal).

113. “State-of-the-Art of Tight Gas Sands Characterization and Production Technology,” Roberto Aguilera, paper 2007-208 presented at the Canadian International Petroleum Conference held in Calgary, Canada (June 12-14, 2007) (Refereed Abstract, Full Paper in Conference Proceedings). Published in Journal of Canadian Technology (December 2008), pp. 37-41. Co-author: Thomas Harding.

114. “Assessing the Past, Present, and Near Future of the Global Energy Market,” Roberto Aguilera, SPE paper 110215-PP presented at the Annual Technical Conference and Exhibition held in Anaheim, California, USA (November 11-14, 2007) (Refereed Abstract, Full Paper in Conference Proceedings). Published in Journal of Petroleum Technology (May 2008), pp. 36-39. Co-author: Roberto F. Aguilera.

115. “Integrated Formation Evaluation of Naturally Fractured Reservoirs,” Roberto Aguilera, presentation at the University of Texas at Dallas, Texas (January 25, 2008).

116. “Role of Natural Fractures and Slot Porosity on Tight Gas Sands,” Roberto Aguilera, SPE paper 114174 presented at the Unconventional Reservoirs Conference held in Keystone, Colorado, USA (February 10-12, 2008) (Refereed Abstract, Full Paper in Conference Proceedings).

117. “GFREE: U of C Research for Evaluating the Resource Base of Tight Gas Sands in Canada and Finding Economic Means of Extracting as Much of this Gas as Possible,” Roberto Aguilera, presentation at Idaho National Laboratories, Idaho Falls, USA (April 8, 2008).

118. “Characterization of Naturally Fractured Reservoirs for Improvement of Hydrocarbon Recoveries,” Roberto Aguilera, presentation for the Colegio de Ingenieros Petroleros de Mexico, Villahermosa, Mexico (May 23, 2008).

119. “The Role of Secondary Porosity on Tight Gas Sands,” Roberto Aguilera, presented at the Global Petroleum Conference held in Calgary, Canada (June 10-12, 2008)

120. “Effect of Fracture Dip and Fracture Tortuosity on Petrophysical Evaluation of Naturally Fractured Reservoirs,” Roberto Aguilera, paper 2008-110 presented at Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 17-19, 2008) (Dr. R. M. Butler Memorial Best Paper Presented at the CIPC 2008 Award). Journal of Canadian Petroleum Technology (September 2010). (Refereed Journal).

121. “Well Testing of Tight Gas Reservoirs,” Roberto Aguilera, paper 2008-161 presented at the Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 17-19, 2008). Published in Journal of Canadian Petroleum Technology (October 2009), pp. 36-39. Co-author: Ashkan Jahanbani Ghahfarokhi. (Refereed Journal).

122. “Global Possibilities of Future Methane and Hydrogen Economies,” Roberto Aguilera, SPE paper 114952 presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference held in Calgary, Canada (16–19 June 2008) (Refereed Abstract, Full Paper in Conference Proceedings). Published in Journal of Petroleum Technology (June 2009), pp. 36-39. Co-author: Roberto F. Aguilera.

123. “Pressure-Transient Test Design in Dual-Porosity Tight Gas Formations,” Roberto Aguilera, SPE paper 115001 presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference held in Calgary, Canada (16–19 June 2008). Co-author: Mohammad Sadeq Shahamat (Refereed Abstract, Full Paper in Conference Proceedings).

124. “Volumes and Areas of Pendular Rings with Non-Zero Contact Angle in Tight Gas Sands Dominated by Contractional Fractures and Slot Porosity,” Roberto Aguilera, SPE paper 114957 presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference held in Calgary, Canada (16–19 June 2008) (Refereed Abstract, Full Paper in Conference Proceedings).

125. “Natural Gas Production from Tight Gas Formations: A Global Perspective,” Roberto Aguilera, presented at the 19^th World Petroleum Congress held in Madrid, Spain (June 29 – July 3, 2008). Co-authors: Roberto F. Aguilera, Thomas Harding and Federico Krause (Refereed Abstract, Full Paper in Conference Proceedings).

126. “Tight Gas Formations: From Rocks to Realistic Fluid Flow Models Using the GFREE Approach,” Roberto Aguilera, presented at CSUG Technical Luncheon Series, Calgary, Canada (December 10, 2008).

127. “Natural Gas: An underestimated Endowment with Potential to Pave the Way towards Low and Zero-Carbon Energy,” Roberto Aguilera, presented at Society of Petroleum Engineers (SPE) meeting, Calgary, Alberta (March 25, 2009).

128. “Solutions for Better Production in Tight Gas Reservoirs Through Hydraulic Fracturing,” Roberto Aguilera, SPE paper 121357 presented at the SPE Western Regional Conference held in San Jose, California (March 24-26, 2009). Co-authors: James Arukhe and Thomas Harding (Refereed Abstract, Full Paper in Conference Proceedings).

129. “The Multi-Disciplinary GFREE Tight Gas Research Program at the Schulich School of Engineering, University of Calgary,” Roberto Aguilera, presented at the Unconventional Gas Development in the Western Energy Corridor Forum, Idaho Falls, Idaho (May 12, 2009).

130. “Critical Oil Rates in Naturally Fractured Reservoirs to Minimize Gas and Water Coning: Case History of a Mexican Carbonate Reservoir,” Roberto Aguilera, SPE paper 121743 presented at the Latin American and Caribbean Petroleum Engineering Conference (LACPEC) held in Cartagena, Colombia (May 31-June 3, 2009). Co-authors: L.E. Brito, J. Muñoz, R. Garrido, F. Paz, W. Valbuena, O. Hidalgo, and Flamenco Lopez (Refereed Abstract, Full Paper in Conference Proceedings).

131. “Unconventional Gas: A Generally Untapped Source with Potential to Help Pave the Way towards Low and Zero-Carbon Energy,” Roberto Aguilera, presented at the Second Annual Global Petroleum Conference held in Calgary, Canada (June 9-11, 2009).

132. “Natural Gas Production from Tight Gas Formations: A Global Perspective” Roberto Aguilera, presented at the Student International Energy Summit held in Calgary, Canada (June 11-13, 2009).

133. “A Method for Estimating Hydrocarbon Cumulative Production Distribution of Individual Wells in Naturally Fractured Carbonates, Sandstones, Shale Gas and Tight Gas Formations,” Roberto Aguilera, paper 2009-103 presented at the Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 15-18, 2009). Journal of Canadian Petroleum Technology (August 2010) (Refereed Journal).

134. “Dominant Considerations for Effective Hydraulic Fracturing in Naturally Fractured Tight Gas Carbonates,” Roberto Aguilera, paper 2009-153 presented at the Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 15-18, 2009). Co-authors: James Arukhe and Thomas Harding (Refereed Abstract, Full Paper in Conference Proceedings).

135. “LiDAR Technology as a Means of Improving Geologic, Geophysical and Reservoir Engineering Evaluations: From Rocks to Realistic Fluid Flow Models,” Roberto Aguilera, paper 2009-163 presented at the Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 15-18, 2009). Co-authors: Mohammed Alfarhan, Jack Hui Deng, Lionel S. White, Rudi Meyer, John S. Oldow, Federico Krause, and Carlos Aiken (Dr. R. M. Butler Memorial Best Paper Presented at the CIPC 2009 Award, First Runner Up). (Refereed Abstract, Full Paper in Conference Proceedings)

136. “Estimation of Reservoir Hydraulic Property from Surface Heave Induced by Fluid Injection,” Roberto Aguilera, paper 2009-104 presented at the Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 15-18, 2009). Co-authors: L. P. Qiao and R. C. K. Wong. Journal of Canadian Petroleum Technology (February 2011) (Refereed Journal).

137. “Determination of Biot’s Effective Stress Parameter for Permeability of Nikanassin Sandstone,” Roberto Aguilera, paper 2009-105 presented at the Petroleum Society’s Canadian International Petroleum Conference held in Calgary, Canada (June 15-18, 2009). Co-authors: L. P. Qiao, R. C. K. Wong and Apostolos Kantzas. Journal of Canadian Petroleum Technology (May 2012) (Refereed Journal).

138. “Characterization and Exploitation of Tight Gas and Shale Gas Reservoirs,” Roberto Aguilera, presented at the special CIPC panel session on Modern Completions and Evaluation Strategies for Tight and Shale Gas, Canadian International Petroleum Conference held in Calgary, Canada (June 15-18, 2009).

139. “Reservoir Sampling and Analysis,” Roberto Aguilera, presented by invitation at Forum on Future of Stimulation in Tight Gas and Shale Gas held in Kananaskis, Alberta, Canada (August 17-21, 2009).

140. “GFREE: An In-Progress Report for Evaluating the Nikanassin Tight Gas Formation,” Roberto Aguilera, presented by invitation at the Nikanassin-Cadomin ConocoPhillips Workshop (September 16-17, 2009)

141. “GFREE Approach for Geologic Characterization of ‘Tight Gas’ Reservoirs,” Roberto Aguilera, poster presented at the Geoscience Department Open House, University of Calgary (September 18, 2009). Co-authors: Nisael Solano and Christopher Clarkson.

142. “Oil, Natural Gas and NGL Endowment in North, Central and South America,” Roberto Aguilera, SPE paper 124490 presented at the Annual Technical Conference and Exhibition held in New Orleans, Louisiana, USA (October 4-7, 2009). Co-author: Roberto F. Aguilera, SPE Economics and Management (October 2010). (Refereed Journal).

143. “New Training Methods for the 21ST Century in the E&P Industry,” a panel discussion including Lee Dillenbeck of Chevron, Satinder Purewal of Shell Oil, Tom Blasingame of Texas A&M University, Roberto Aguilera of the University of Calgary, Turgay Ertekin of Pennsylvania State University, Alain Gringarten of Imperial College, and Bill Fiffick of BJ Services; SPE Annual Technical Conference and Exhibition held in New Orleans, Louisiana, USA (October 4-7, 2009).

144. “Anticipating the Energy Crunch: Extracting Tight and Unconventional Gas,” Roberto Aguilera, written by invitation of Exploration and Production, Oil and Gas Review, vil.8, issue 1, pp. 103-104 (March 2010).

145. “GFREE Approach to Geological Characterization of Tight Gas Reservoirs,” Roberto Aguilera, presented at GeoCanada 2010, sponsored by (Joint Annual Convention Committee of CSPG, CSEG and CWLS), Canadian Society of Petroleum Geologists, Canadian Society of Exploration Geophysicists, Canadian Well Logging Society, Geological Association of Canada, Mineralogical Association of Canada, Canadian Chapter of the International Association of Hydrogeologists, Canadian Federation of Earth Sciences, Geoscientists Canada (May 10-14, 2010). Co-authors: Nisael Solano, Chris Clarkson, Federico Krause, and Roland Lenormand (Refereed Abstract, Full Paper in Conference Proceedings).

146. “Storage and Output Flow from Shale and Tight Gas Reservoirs,” Roberto Aguilera, paper SPE 133611presented at the SPE Western Regional Meeting held in Anaheim, California, USA (May 27-29, 2010). Co-authors: Mohammad Rahmanian and Nisael Solano (Refereed Abstract, Full Paper in Conference Proceedings).

147. “Flow Units: From Conventional to Tight Gas to Shale Gas Reservoirs,” Roberto Aguilera, SPE Paper 132845 presented at the Trinidad and Tobago Energy Resources Conference held in Port of Spain, Trinidad (June 27-30, 2010) (Refereed Abstract, Full Paper in Conference Proceedings).

148. “An Improved Triple Porosity Model for Evaluation of Naturally Fractured Reservoirs,” Roberto Aguilera, SPE Paper 132879 presented at the Trinidad and Tobago Energy Resources Conference held in Port of Spain, Trinidad (June 27-30, 2010). Co-authors: Ali Al-Ghamdi, Bo Chen, Hamid Behmanesh and Farhad Qanbari. Published in SPE Reservoir Evaluation & Engineering – Formation Evaluation (August 2011) (Refereed Journal).

149. “Cumulative Gas Production Distribution on the Nikanassin Tight Gas Formation, Alberta and British Columbia, Canada,” Roberto Aguilera, SPE Paper 132923 presented at the Trinidad and Tobago Energy Resources Conference held in Port of Spain, Trinidad (June 27-30, 2010). Co-authors: Nisael Solano and Liliana Zambrano. Published in SPE Reservoir Evaluation & Engineering – Formation Evaluation (June 2011). (Refereed Journal).

150. “Shale Gas Series, Part 1, Introduction,” CSPG Reservoir (September 2010). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

151. “A Process to Evaluate Unconventional Resources," SPE Paper 134602 presented at the 2010 SPE Annual Technical Conference and Exhibition (ATCE) held in Florence, Italy (September 19-22, 2010). Co-authors: Roberto Aguilera, Phillip B. Chan and John Etherington (Refereed Abstract, Full Paper in Conference Proceedings).

152. “Optimization of Horizontal Wellbore and Fracture Spacing Using an Interactive Combination of Reservoir and Fracturing Simulation,” SPE paper 137416 presented at the CSUG/SPE Unconventional Resources and International Petroleum Conference held in Calgary, Canada (October 19-21, 2010). Co-authors: Robert S. Taylor, Roberto Aguilera, Mark Glaser, James Kim, Brad Wilson, Gary Nikiforuk, Vic Noble, Lorne Rosenthal, Ottmar Hoch, Mohamed Soliman, Ken Storozkenko, Nathan Riviere, Troy Palidwar, and Roch Romanson (Refereed Abstract, Full Paper in Conference Proceedings).

153. “Reservoir Characterization and Flow Simulation of a Low-Permeability Gas Reservoir: An Integrated Approach for Modeling Tommy Lakes Gas Field,” SPE paper 137507 presented at the CSUG/SPE Unconventional Resources and International Petroleum Conference held in Calgary, Canada (October 19-21, 2010). Co-authors: Hui Deng, Roberto Aguilera, University of Calgary; Mohammed Alfarhan, Lionel S. White, John S. Oldow, Carlos L. Aiken, University of Texas at Dallas. Journal of Canadian Petroleum Technology (May 2011) (Refereed Journal).

154. “Natural Gas Potential in the Saint Lawrence Lowlands of Quebec: A Case Study,” SPE paper 137593 presented at the CSUG/SPE Unconventional Resources and International Petroleum Conference held in Calgary, Canada (October 19-21, 2010). Co-authors: Roberto Aguilera, Jean-Yves Lavoie, Jean-Sebastien Marcil, Peter K. Dorrins and Jeremie Lavoie. Journal of Canadian Petroleum Technology (December 2011) (Refereed Journal).

155. “A New Method for production Decline Analysis of Tight Gas Formations,” SPE paper 1378149 presented at the CSUG/SPE Unconventional Resources and International Petroleum Conference held in Calgary, Canada (October 19-21, 2010). Co-authors: Roberto Aguilera, Sadeq Shahamat (Refereed Abstract, Full Paper in Conference Proceedings).

156. “Shale Gas Series, Part 2, History of Shale Gas Production in North America,” CSPG Reservoir (October 2010). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

157. “Shale Gas Series, Part 3, Shale Properties,” CSPG Reservoir (November 2010). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

158. “Shale Gas Series, Part 4, Log Analysis and Shale Gas Petrophysics,” CSPG Reservoir (December 2010). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

159. “Indexing and Normalizing Natural-Gas Endowment,” SPE paper 139247 presented at the Latin America and the Caribbean Petroleum Engineering Conference (LACPEC) held in Lima, Peru (December 1-3, 2010). Co-authors: Roberto Aguilera, Roberto F. Aguilera (Curtin University) (Refereed Abstract, Full Paper in Conference Proceedings).

160. “Shale Gas Series, Part 5, Shale Gas vs. Tight Gas vs. Conventional Gas,” CSPG Reservoir (January 2011). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

161. “Petrophysics of Naturally Fractured Reservoirs with a Link to Oil and Gas Productivity,” Roberto Aguilera, keynote speaker; presented by invitation at the University of Manchester’s North African Research Group Workshop on Naturally Fractured Reservoirs: Outcrop Analogues, Subsurface Studies and Case Histories, University of Manchester, England (January 12-13, 2011).

162. “Petrophysics of Multi-Porosity Tight Gas Reservoirs with a Link to Oil and Gas Productivity,” Roberto Aguilera, presented by invitation at the Canadian Society for Unconventional Gas (CSUG) Technical Luncheon, Calgary, Canada (January 18, 2011).

163. “Optimizing Hydraulic Fracturing of Naturally Fractured Tight Gas Formations,” SPE paper 142727 presented at the SPE Middle East Unconventional Gas Conference and Exhibition held in Muscat, Oman (31 January–2 February, 2011). Co-authors: Javier Leguizamon, Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

164. “Shale Gas Series, Part 6, Influence of Technology on Shales Gas Development,” CSPG Reservoir (February 2011). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

165. "Original-Gas-In-Place Sensitivity Analysis of the Manville Group in the Western Canada Sedimentary Basin," SPE paper 142349-PP presented at the 2011 Production and Operations Symposium held in Oklahoma City, Oklahoma (27 - 29 March 2011). Co-authors: O. M. Contreras, Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

166. “Shale Gas Series, Part 7, Shale Gas Production Analysis and Forecasting,” CSPG Reservoir (March 2011). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

167. “Shale Gas Series, Part 8, Shale Gas Development Optimization,” CSPG Reservoir (April 2011). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

168. “Shale Gas Series, Part 9, Comparison of Shale Basins, Original Gas-in-Place, Resources and Reserves,” CSPG Reservoir (May 2011). Co-authors: Roberto Aguilera, R. J. Spencer, P.K. Pedersen and C.R. Clarkson.

169. “Tight Gas Commingled Completions: Hydraulic Fracturing and Gas Production Allocation,” Roberto Aguilera, poster presented at the Tight Gas Completions SPE ATW held in Banff, Canada (May 3-5, 2011). Co-authors: Hui Deng and Javier Leguizamon.

170. "Modeling Fractured Horizontal Wells as Dual Porosity Composite Reservoirs - Application to Tight Gas, Shale Gas and Tight Oil Cases,” SPE paper 144057-PP presented at the 2011 SPE Western Regional Meeting held in Anchorage, Alaska (7 - 11 May 2011). Co-authors: I. G. Brohi, Mehran Pooladi-Darvish, Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

171. "Petrophysics of Triple Porosity Tight Gas Reservoirs with a Link to Gas Productivity," Roberto Aguilera, SPE paper 144590-PP presented at the 2011 SPE Western Regional Meeting held in Anchorage, Alaska (7 - 11 May 2011). Co-authors: Hui Deng and Javier Leguizamon. SPE Reservoir Evaluation & Engineering – Formation Evaluation (October 2011). (Refereed Journal).

172. “Natural Gas: A Global Perspective,” Roberto Aguilera, presented by invitation to SPE Canada, Calgary, Alberta (10 May 2011).

173. “Flow Units for Shale Gas Formations: An Innovative Vision,” Roberto Aguilera, presented at the CSPG-CSEG-CWLS Joint Annual Convention held in Calgary, Canada (May 9-13, 2011).

174. “Upper Monteith and Lower Beattie Peaks at the Sinclair and Albright fields in West Central Alberta: Some Views into the Reservoir Properties,” presented at the Core Conference of the CSPG-CSEG-CWLS Joint Annual Convention held in Calgary, Canada (May 9-13, 2011). Co-authors: N. Solano, C. Clarkson, F.F. Krause, Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

175. “Cementation Exponent Estimation for Complex Carbonate Reservoirs Using a Triple Porosity Model,” SPE paper SAS-825 presented at the SPE Saudi Arabia Section/Dahran Geoscience Society (DGS) Annual Technical Symposium and Exhibition held in Al Khobar, Saudi Arabia (May 15-18, 2011). Co-authors: Ali Al-Ghamdi and C. R. Clarkson (Refereed Abstract, Full Paper in Conference Proceedings).

176. “Unlocking Shale Gas Reservoirs in the Middle East,” presented by invitation, Panelist at the Panel Discussion of the 2011 SPE/DGS Annual Technical Symposium and Exhibition (ATS&E) held in Al Khobar, Saudi Arabia (May 15-18, 2011). Panelists: Brian Gratto (Exploration Manager, Aramco), Peter Richter (Vice-president of Marketing and Technology, Schlumberger, David Kemekhem, Manager of Unconventional Gas, Exxon-Mobil, Mathieu Neagel, Manager of Unconventional Resources, Total and Roberto Aguilera, Schulich School of Engineering, University of Calgary).

177. “Pore Pressure Prediction in an Abnormally Sub-Pressured Basin: Case Study in the Western Canada Sedimentary Basin,” paper ARMA 11-456 presented at the 45th US Rock Mechanics / Geomechanics Symposium held in San Francisco, California (June 26–29, 2011). Co-authors: O. M. Contreras, A. N. Tutuncu, G. Hareland and Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

178. “Investigating the Effect of Sorption Time on Coalbed Methane Recovery through Numerical Simulation,” Fuel (Elsevier). Co-authors: Ali S. Ziarani, Roberto Aguilera, and C. R. Clarkson (July, 2011). (Refereed Journal).

179. "Knudsen Permeability Correction for Tight Porous Media," Transport in Porous Media (Springer). Co-authors: Ali S. Ziarani, Roberto Aguilera (September 16, 2011). (Refereed Journal).

180. "Use of Pickett Plots for Evaluation of Shale Gas Formations,” SPE paper 146948-PP presented at the 2011 SPE Annual Technical Conference and Exhibition (ATCE) held in Denver, Colorado (30 October - 2 November, 2011). Co-authors: Guang Yu, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

181. "An Integrated Workflow for Reservoir Modeling and Flow Simulation of the Nikanassin Tight Gas Reservoir in the Western Canada Sedimentary Basin," SPE paper 146953-PP presented at the 2011 SPE Annual Technical Conference and Exhibition (ATCE) held in Denver, Colorado (30 October - 2 November, 2011). Co-authors: Hui Deng, Roberto Aguilera, Tony Settari (Refereed Abstract, Full Paper in Conference Proceedings).

182. "GFREE Research Program,” SPE paper 147282-PP presented at the 2011 SPE Annual Technical Conference and Exhibition (ATCE) held in Denver, Colorado (30 October - 2 November 2011). Co-authors: Roberto Aguilera, Thomas Harding (Refereed Abstract, Full Paper in Conference Proceedings).

183. "A Multiple-Porosity Model for Evaluation of Giant Naturally Fractured Gas Sandstone Reservoirs in Bolivia," SPE paper 147511-PP presented at the 2011 SPE Annual Technical Conference and Exhibition (ATCE) held in Denver, Colorado (30 October - 2 November 2011). Co-authors: Livia Sivila, Ramona Graves and Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

184. “Why Not to Base Economic Evaluations on Initial Production Alone,” SPE paper 148680 presented at the 2011 CSUG/SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (15 - 17 November 2011). Co-authors: Robert S. Taylor, Roberto Aguilera, and others (Refereed Abstract, Full Paper in Conference Proceedings).

185. “An Innovative Approach for Pore Pressure Prediction and Drilling Optimization in an Abnormally Sub-Pressured Basin,” SPE paper 148947 presented at the 2011 CSUG/SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (15 - 17 November 2011). Co-authors: Oscar Contreras, Geir Hareland, Roberto Aguilera, SPE Drilling & Completion (December 2012) (Refereed Journal).

186. “Effect of Natural Fracture Density on Production Variability of Individual Wells in the Tight Gas Nikanassin Formation,” SPE paper 149222 presented at the 2011 CSUG/SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (15 - 17 November, 2011). Co-authors: Laureano Gonzalez, Roberto Aguilera. Published in SPE Journal of Canadian Petroleum Technology (March 2013). (Refereed Journal).

187. “A New Unified Diffusion-Viscous Flow Model Based on Pore Level Studies of Tight Gas Formations,” SPE paper 149223 presented at the 2011 CSUG/SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (15 - 17 November 2011). Co-authors: Mohammad Rahmanian, Roberto Aguilera and Apostolos Kantzas. SPE Journal (February 2013) (Refereed Journal).

188. “Integration of Seismic Data and a triple Porosity Model for Interpretation of Tight Gas Formations in the Western Canada Sedimentary Basin,” SPE paper 149496 presented at the 2011 CSUG/SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (15 - 17 November, 2011). Co-authors: Fernando Castillo, Roberto Aguilera and Don Lawton (Refereed Abstract, Full Paper in Conference Proceedings).

189. “World Natural Gas Endowment as a Bridge towards Zero Carbon Emissions,” presented at the 3rd International Association for Energy Economics (IAEE) Asian Conference, Kyoto, Japan (20-22 February 2012). Co-authors: Roberto F. Aguilera and Roberto Aguilera.

190. "Indexation and Normalization Modeling of Natural Gas Endowment." Co-authors: Roberto F. Aguilera and Roberto Aguilera. Mathematical Geosciences” (Springer). (April 2012). (Refereed Journal).

191. “World Natural Gas Endowment as a Bridge towards Zero Carbon Emissions,” Technological Forecasting and Social Change (Elsevier). Co-authors: Roberto F. Aguilera and Roberto Aguilera (March 2012). (Refereed Journal).

192. "Using the SPE/WPC/AAPG/SPEE/SEG Petroleum Resources Management System (PRMS) to Evaluate Unconventional Resources." Co-authors: Phil Chan, John Etherington, Roberto Aguilera, SPE Economics and Management (April 2012). (Refereed Journal).

193. “A Method for Probabilistic Forecasting of Oil Rates in Naturally Fractured Reservoirs," SPE paper 153275-PP presented at the 2012 SPE Latin America and Caribbean Petroleum Engineering Conference in Mexico City (16-18 April, 2012). Co-authors: Julio Munoz, Rafael Paz, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

194. "3D Analytical Modeling of Hydraulic Fracturing Stimulated Reservoir Volume," SPE paper 153486-PP presented at the 2012 SPE Latin America and Caribbean Petroleum Engineering Conference in Mexico City (16-18 April, 2012). Co-authors: Guang Yu and Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

195. "Effect of Natural Fracture Properties on Production Variability of Individual Wells in Multi-Phase Oil Reservoirs,” SPE paper 153741-PP presented at the 2012 SPE Latin America and Caribbean Petroleum Engineering Conference in Mexico City (16-18 April, 2012). Co-authors: Bruno Lopez, Laureano Gonzales, Francisco Garcia, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

196. “Upper Monteith and Lower Beattie Peaks Formations at the Sinclair and Albright fields in Westcentral Alberta: some views into the reservoir properties,” poster presented at the Canadian Society of Exploration Geophysicist (CSEG), Canadian Society of Petroleum Geologists (CSPG) and Canadian Well Logging Society (CWLS) Geoconvention 2012 (May 14-18, 2012). Co-authors: Nisael Solano, Chris Clarkson, Federico Krause, Roberto Aguilera (Refereed Abstract, Poster).

197. “A New Correlation of Compressional and Shear Slowness for the Tight Gas Nikanassin Group in the Western Canada Sedimentary Basin based on Geostatistical Analysis,” poster presented at the Canadian Society of Exploration Geophysicist (CSEG), Canadian Society of Petroleum Geologists (CSPG) and Canadian Well Logging Society (CWLS) Geoconvention 2012 (May 14-18, 2012). Co-authors: Liliana Zambrano, Fernando Castillo, Laureano Gonzalez, Roberto Aguilera (Refereed Abstract, Poster).

198. “Tight Gas Sandstones of the Uppermost Nikanassin Group,” poster presented at the Canadian Society of Exploration Geophysicist (CSEG), Canadian Society of Petroleum Geologists (CSPG) and Canadian Well Logging Society (CWLS) Geoconvention 2012 (May 14-18, 2012). Co-authors: Liliana Zambrano, Per Ken Pedersen, Roberto Aguilera (Refereed Abstract, Poster).

199. "Use of Drill Cuttings for Improved Design of Hydraulic Fracturing Jobs in Horizontal Wells," SPE 155746-PP presented at the SPE Americas Unconventional Resources Conference in Pittsburgh, Pennsylvania, USA (5-7 June, 2012). SPE Journal of Canadian Petroleum Technology (2014) Co-authors: Camilo Ortega, Roberto Aguilera (Refereed Journal).

200. "Electrical Property Estimation for Complex Carbonate Reservoirs Using Wireline Logs," presented at the SPWLA 53rd Annual Symposium in Cartagena, Colombia (16-20 June, 2012). Co-authors: Ali Al-Ghamdi, Roberto Aguilera, Christopher Clarkson (Refereed Abstract, Full Paper in Conference Proceedings).

201. “Potential Impact of Drill Cuttings on the Design of Multi-Stage Hydraulic Fracturing Jobs in Tight Gas Formations," presented at the SPWLA 53rd Annual Symposium in Cartagena, Colombia (16-20 June, 2012). Co-authors: Camilo Ortega, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

202. "Pore-Throat Radius and Tortuosity Estimation from Formation Resistivity Data for Tight-Gas Sandstone Reservoirs," Journal of Applied Geophysics (Elsevier) (June 2012). Co-authors: Ali Ziarani, Roberto Aguilera (Refereed Journal).

203. “Tight Gas,” Guide to Unconventional Gas, prepared by invitation of the World Petroleum Council (2012). Co-authors: Roberto F. Aguilera, Thomas G., Harding, Roberto Aguilera.

204. "3D Modeling of Multistage Hydraulic Fractures and Two-Way Coupling Geomechanics - Fluid Flow Simulation of a Horizontal Well in the Nikanassin Tight Gas Formation, Canada," SPE-159765-PA presented at the 2012 SPE Annual Technical Conference and Exhibition (ATCE) in San Antonio, Texas (8 -10 October 2012). SPE Reservoir Evaluation & Engineering (2014). Co-authors: Laureano Gonzalez, Gaisoni Nasreldin, Jose Antonio Rivero, Peter Welsh, Roberto Aguilera (Refereed Journal).

205. "Investigation of Gas Shales at Nanoscale Using Scan Electron Microscopy, Transmission Electron Microscopy and Atomic Force Microscopy," SPE-159887-PP prepared for presentation at the 2012 SPE Annual Technical Conference and Exhibition (ATCE) in San Antonio, Texas (8 -10 October 2012). Co-authors: Peng Wu, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

206. “A Variable Shape Distribution (VSD) Model for Characterization of Pore Throat Radii, Drill Cuttings, fracture apertures and petrophysical properties in Tight, Shale and Conventional Reservoirs,” SPE 158808 to be presented at the Asia Pacific Oil & Gas Conference and Exhibition (APOGCE) in Perth, Australia (22 - 24 October 2012). Co-authors: Roberto F. Aguilera, Camilo Ortega, John F. Ramirez, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

207. “Pore Pressure Modeling and Stress Faulting Regime Determination of the Montney Shale in the Western Canada Sedimentary Basin,” SPE 161770 prepared for presentation at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). SPE Journal of Canadian Petroleum Technology (September 2013). Co-authors: Oscar Contreras, Geir Hareland, Roberto Aguilera (Refereed Journal).

208. “A Complete Petrophysical Evaluation Method for Tight Formations from Only Drill Cuttings in the Absence of Well Logs,” SPE 161875-PA prepared for presentation at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). Co-authors: Camilo Ortega, Roberto Aguilera. SPE Journal (August 2014) (Refereed Journal).

209. “Drill Cuttings and Characterization of Tight Gas Reservoirs - an Example from the Nikanassin Fm. in the Deep Basin of Alberta,” SPE 162706 prepared for presentation at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). Co-authors: Nisael Solano, Christopher Clarkson, Federico Krause, James Barclay, Roland Lenormand, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

210. “Link between Rocks, Hydraulic Fracturing, Economics, Environment and the Global Gas Portfolio,” SPE-162717-PP presented at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). Co-authors: Roberto F. Aguilera, Ronald Ripple, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

211. “Software Development for Petrophysical Analysis of Shale and Tight Formations,” SPE-162746-PP prepared for presentation at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). Co-authors: Guang Yu, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

212. “The Use of Electromagnetic Mixing Rules for Petrophysical Evaluation of Dual and Triple Porosity Reservoirs,” SPE-162772-PA prepared for presentation at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). Co-authors: Bukola Olusola, Guang Yu, Roberto Aguilera, Roberto Aguilera, Published in SPE Reservoir Evaluation & Engineering-Formation Evaluation (November 2013) (Refereed Journal).

213. “Updip Water Blockage in the Nikanassin Basin Centered Gas Accumulation, Western Canada Sedimentary Basin,” SPE-162774-PP prepared for presentation at the SPE Canadian Unconventional Resources Conference in Calgary, Canada (October 30-November 1, 2012). Co-authors: John Freddy Ramirez, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

214. “Hydraulic Fracture Stimulation via Coupled Reservoir Geomechanics: The Nikanassin Unconventional Formation in Canada," paper ID15001 prepared for presentation at the European Association of Geoscientists and Engineers (EAGE), Integrated Reservoir Modelling Conference in Dubai, UAE (25 to 28 November 2012). Co-authors: L. Gonzalez (University of Calgary), Gaisoni Nasreldin (Schlumberger), J. Rivero (Schlumberger), P. Welsh (Schlumberger), N. Koutsabeloulis (Schlumberger), Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

215. “Flow Units: From Conventional to Tight Gas to Shale Gas to Tight Oil to Shale Oil Reservoirs,” Roberto Aguilera, paper SPE 165360-MS prepared for presentation at the SPE Western Regional and AAPG Pacific Section Meeting, 2013 Joint Technical Conference in Monterey, California (19-25 April, 2013). SPE Reservoir Evaluation & Engineering-Formation Evaluation (May 2014) (Refereed Journal).

216. “Reservoir Characterization of Tight Gas Sandstones of the Uppermost Nikanassin Formation in the Western Canada Sedimentary Basin in Alberta, Canada,” prepared for presentation at the Canadian Society of Exploration Geophysicist (CSEG), Canadian Society of Petroleum Geologists (CSPG) and Canadian Well Logging Society (CWLS) 2013 Geoconvention, Calgaty (May 6-10, 2013). Co-authors: Liliana Zambrano, Per K. Pedersen, Roberto Aguilera (Refereed Abstract, Poster).

217. “Evaluation of Quintuple Porosity Reservoirs in Shale Petroleum Reservoirs,” paper SPE 165681-MS prepared for presentation at the SPE Eastern Regional Meeting held in Pittsburgh, Pennsylvania, USA, (20-22 August, 2013). Co-authors: Bruno Lopez, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

218. "Use of a Variable Shape Distribution (VSD) Model to Populate Reservoir Properties in Tight Fractured Reservoirs for Numerical 3D Modeling,” paper SPE 167290-MS prepared for presentation at the 2013 SPE Kuwait Oil and Gas Show and Conference held at Kuwait International Fair, Mishref, Kuwait (7-10 October, 2013). Co-authors: John F. Ramirez, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

219. “Importance of Multidisciplinary Studies on Rock Properties for Evaluation of Tight Formations using GFREE Management,” Roberto Aguilera, presented at the Gussow Conference on Importance of Rock Properties in Unconventional Reservoirs held in Banff, Alberta, Canada (October 15-17, 2013).

220. "Understanding the Rocks: Key to Unlocking Gas from Tight Formations,” presented at the panel discussion on Natural Gas: Unlocking the Unconventional, 4^th World Petroleum Youth Forum held in Calgary, Canada (October 22-25, 2013). Panelists: Greg Gersib, Vice President Exploration - ConocoPhillips, Canada; Valerie Jochem, Technical Director, Unconventional Resources - Schlumberger, United States; Mike Wood, Vice President, Canada Development - Talisman Energy; Roberto Aguilera, University of Calgary, Moderator: Doug Ashton, Resource, Evaluation and Advisory Team - Deloitte, Canada.

221. "Geologic Controls on Gas Production and Hydraulic Fracturing Flowback in Tight-Gas Sandstones of the Late Jurassic Monteith Formation, Deep Basin, Alberta, Canada,” paper SPE-167177-PA prepared for presentation at the 2013 SPE Unconventional Resources Conference - Canada held in Calgary, Alberta, Canada (5-7 November, 2013). SPE Reservoir Evaluation & Engineering-Formation Evaluation (January 2016). Co-authors: Liliana Zambrano, Per K. Pedersen, Roberto Aguilera (Refereed Journal).

222. "How to Estimate Water Saturation Exponent in Dual and Triple Porosity Reservoirs with Mixed Wettability,” paper SPE 167213-MS prepared for presentation at the 2013 SPE Unconventional Resources Conference - Canada held in Calgary, Alberta, Canada (5-7 November, 2013). Co-authors: Bukola Olusola, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

223. "A Case Study on Formation Evaluation of Horizontal Wells in the Tight Gas Nikanassin Group of the Western Canada Sedimentary Basin Using Drill Cuttings,” paper SPE 167214-MS prepared for presentation at the 2013 SPE Unconventional Resources Conference - Canada held in Calgary, Alberta, Canada (5-7 November, 2013). Co-authors: Bukola Olusola, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

224. "Uncertainty Analysis of Shale Gas Simulation: Consideration of Basic Petrophysical Properties,” paper SPE 167236-MS prepared for presentation at the 2013 SPE Unconventional Resources Conference - Canada held in Calgary, Alberta, Canada (5-7 November, 2013). Co-authors: Peng Wu, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

225. “Rocks: Geologic Controls on Hydraulic Fracturing Flowback in tight Formations,” poster presented at the Workshop on Hydraulic Fracture Flowback held in San Antonio, Texas (6 – 7 November 2013). Co-authors: Liliana Zambrano, Per K. Pedersen, Roberto Aguilera.

226. "Calibration of Well Logs with Mini-Frac Data for Estimating the Minimum Horizontal Stress in the Tight Gas Monteith Formation of the Western Canada Sedimentary Basin: A Case Study,” paper SPE 168594-MS prepared for presentation at the 2014 SPE Hydraulic Fracturing Technology Conference held in The Woodlands, TX, USA (4 – 6 February, 2014). SPE Production and Operations (May 2015). Co-authors: Bruno Lopez, Guang Yu, Roberto Aguilera and Tony Settari (Refereed Journal)“.

227. “Tight Gas Sandstones of the Uppermost Nikanassin Group,” Search and Discovery Article #50943. Co-authors: L. Zambrano, P. K. Pedersen, Roberto Aguilera (2014). (Refereed Abstract).

228. “Upper Monteith and Lower Beattie Peaks Formations at the Sinclair and Albright fields in West-central Alberta: Some Views into the Reservoir Properties,” Discovery Article #20244. Co-authors: Nisael Solano, Chris Clarkson, Federico F. Krause, Roberto Aguilera (2014). (Refereed Abstract).

229. “A Physics-Based Method for Production Data Analysis of Tight and Shale Petroleum Reservoirs Using Succession of Pseudo-Steady States,” paper SPE 167686-MS prepared for presentation at the SPE/EAGE European Unconventional Conference and Exhibition held Vienna, Austria (25–27 February 2014). SPE Reservoir Evaluation & Engineering (November 2015). Co-authors: M. S. Shahamat, L. Mattar, Roberto Aguilera (Refereed Journal).

230. “Analysis of Decline Curves Based on Beta Derivative,” paper SPE 169570-MS prepared for presentation at the 2014 SPE Western North America and Rocky Mountain Joint Regional Meeting held in Denver, CO, USA (16-18 April 2014). SPE Reservoir Evaluation & Engineering (May 2015). Co-authors: Sadeq Shahamat, Louis Mattar, Roberto Aguilera (Refereed Journal).

231. "Multi-stage Hydraulic Fracturing Design in Horizontal Wells with The Use of Drill Cuttings,” paper SPE 169572-MS prepared for presentation at the 2014 SPE Western North America and Rocky Mountain Joint Regional Meeting held in Denver, CO, USA (16-18 April 2014). Co-authors: Bukola Olusola, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

232. “Integrated 3D reservoir modeling of the Monteith Formation -Tight Gas Sandstones in the Western Canada Sedimentary Basin, Alberta, Canada,” presented at the Canadian Society of Exploration Geophysicist (CSEG), Canadian Society of Petroleum Geologists (CSPG) and Canadian Well Logging Society (CWLS) Geo-Convention 2014 (May 12-14, 2014). Co-authors: Liliana Zambrano, John Freddy Ramirez, Per Pedersen, Roberto Aguilera (Refereed Abstract).

233. "The Effect of Oil Price on Oil Consumption and Reserves," paper SPE 169373-MS prepared for presentation at the 2014 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Maracaibo, Venezuela (21 – 23 May 2014). Co-authors: Roberto F. Aguilera, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

234. "Porosity and Density Estimation from Seismic Inversion in Tight Gas Sandstones," paper SPE 169421-MS prepared for presentation at the 2014 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Maracaibo, Venezuela (21 – 23 May 2014). Co-authors: Fernando Castillo. Roberto Aguilera and Don Lawton (Refereed Abstract, Full Paper in Conference Proceedings).

235. “Link between Endowments, Economics and Environment in Conventional and Unconventional Gas Reservoirs,” Fuel (Elsevier) (126) (June 2014) 224-238. Co-authors: Roberto F. Aguilera, Ronald D. Ripple, Roberto Aguilera (Refereed Journal).

236. “Petrophysical Quantification of Multiple Porosities in Shale Petroleum Reservoirs,” paper SPE 171638-MS prepared for presentation at the SPE/CSUR Unconventional Resources Conference-Canada held in Calgary, Alberta, Canada (30 September–2 October 2014). SPE Reservoir Evaluation & Engineering (September 2017). Co-authors: Bruno Lopez, Roberto Aguilera (Refereed Journal).

237. “Optimization of Duvernay Fracturing Treatment Design Using Fully Compositional Dual Permeability Numeric Reservoir Simulation,” paper SPE 171602-MS prepared for presentation at the SPE/CSUR Unconventional Resources Conference-Canada held in Calgary, Alberta, Canada (30 September–2 October 2014). Co-authors: Robert Taylor, Eric Hards, Greg Niebergall, Barry Stobo, Jeremy Walter, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

238. “Integrated Reservoir Characterization and 3D Modeling of the Monteith Formation: A Case Study of Tight Gas Sandstones in the Western Canada Sedimentary Basin, Alberta, Canada,” paper SPE 171607-PA prepared for presentation at the SPE/CSUR Unconventional Resources Conference-Canada held in Calgary, Alberta, Canada (30 September–2 October 2014). SPE Reservoir Evaluation & Engineering (2016). Co-authors: Liliana Zambrano, John Freddy Ramirez, Per Pedersen, Roberto Aguilera (Refereed Journal).

239. “Factors Controlling Fluid Migration and Distribution in the Eagle Ford Shale,” paper SPE 171626-MS prepared for presentation at the SPE/CSUR Unconventional Resources Conference-Canada held in Calgary, Alberta, Canada (30 September–2 October 2014). SPE Reservoir Evaluation & Engineering (2016). Co-authors: John Freddy Ramirez Vargas, Roberto Aguilera (Refereed Journal).

240. “A Novel Method for Performance Analysis of Compartmentalized Reservoirs,” Journal of Oil & Gas Science and Technology (French Petroleum Institute) (2015), Co-authors: Sadeq Shahamat, Hamidreza Hamdi, Louis Mattar, Roberto Aguilera (Refereed Journal).

241. “Flow Units in Shale Condensate Reservoirs,” paper URTeC 2154846 prepared for presentation at the Unconventional Resources Technology Conference held in San Antonio, Texas, USA (20-22 July 2015). SPE Reservoir Evaluation & Engineering (2016). Co-authors: Bruno Lopez, Roberto Aguilera (Refereed Journal).

242. "Physics-Based Approach for Shale Gas Numerical Simulation: Quintuple Porosity and Gas Diffusion from Solid Kerogen," paper SPE-175115-MS prepared for presentation at the 2015 SPE Annual Technical Conference and Exhibition held in Houston, TX, USA (28 – 30 September, 2015). Co-authors: Bruno Lopez, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

243. "A Material Balance Equation for Shale Gas Reservoirs Considering the Contribution of Free, Adsorbed and Dissolved Gas," paper SPE-175964-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (20 - 22 October, 2015). Co-authors: Daniel Orozco, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

244. "Anisotropic Wellbore Stability Model for Naturally Fractured and Foliated Formations with Multi-Weakness Plane Failure," paper SPE-175896-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (20 - 22 October 2015). Co-authors: Qi li, Adam Yousefzadeh, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

245. "Sorption-Dependent Permeability of Shales” paper SPE 175922-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (20 - 22 October, 2015). Co-authors: Bruno Lopez, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

246. “Estimates of Stress Dependent Properties in Tight Reservoirs: Their Use with Core and Drill Cuttings Data,” paper SPE 177189-MS prepared for presentation at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). SPE Reservoir Evaluation & Engineering (September 2016). Co-authors: Bruno Lopez, Jaime Piedrahita, Roberto Aguilera (Refereed Journal).

247. “Effect of Oil and Gas Prices on Development of Unconventional Plays,” paper SPE 177215-MS prepared for presentation at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). Co-authors: Roberto F. Aguilera, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

248. “New Seismic Based Reservoir Characterization (SBRC) Geomechanical Model Based on Mogi Empirical Rock Failure Relationship,” paper SPE 177265-MS prepared for presentation at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). Co-authors: Qi Li, Adam YousefZadeh, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

249. “Microseismic 101: Monitoring and Evaluating Hydraulic Fracturing to Improve the Efficiency of Oil and Gas Recovery from Unconventional Reservoirs,” paper SPE 177277-MS prepared for presentation at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). Co-authors: Qi Li, Adam YousefZadeh, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

250. “A Material Balance Equation for Shale Gas Condensate Reservoirs,” paper SPE 177260-MS prepared for presentation at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). SPE Reservoir Evaluation & Engineering (2016). Co-authors: Daniel Orozco, Roberto Aguilera (Refereed Journal).

251. “Determination of Principal In-Situ Stress Magnitude from Well Logs in Unconventional Reservoirs: A Practical Application in Willesden Green Field, Canada,” paper SPE 177261-MS prepared for presentation at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). Co-authors: Edgar Urban, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

252. “Improving Recovery of Liquids from Shales through Gas Recycling and Dry Gas Injection,” paper SPE 177278-MS prepared for presentation at the at the 2015 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Quito, Ecuador (18 – 20 November 2015). Co-authors: Alfonso Fragoso, Guicheng Jing, Yi Wang, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

253. “Why Not to Base Economic Evaluations on Initial Production Alone,” Canadian Energy Technology & Innovation Journal, CETI, Calgary, Alberta, Canada (January, 2016). Co-authors: R. S. Taylor, R. Barree, O. Hoch, K. Stonozhenko, Roberto Aguilera (Refereed Journal).

254. “Optimization of Duvernay Fracturing Treatment Design Using Fully Compositional Dual Permeability Numeric Reservoir Simulation,” Canadian Energy Technology & Innovation Journal, CETI, Calgary, Alberta, Canada (January, 2016). Co-authors: R. S. Taylor, B. Stobo, G. Niebergall, J. Walter, E. Hards, Roberto Aguilera (Refereed Journal).

255. “Identification of Activated Fracture Network Using Microseismic Spatial Anomalies, b-Values, and Magnitude Analyses in Horn River Basin,” paper SPE 179153 prepared for presentation at the SPE Hydraulic Fracturing Technology Conference held in The Woodlands, TX, USA (9 – 11 February, 2016). SPE Production & Operations (November 2018), SPE 179153-PA. Co-authors: A. Yousefzadeh, Qi Li, Claudio Virues, Roberto Aguilera (Refereed Journal).

256. “Toward interpretation of intermediate microseismic b-values,” Canadian Society of Exploration Geophysicist (CSEG), Canadian Society of Petroleum Geologists (CSPG) and Canadian Well Logging Society (CWLS) Geoconvention 2016 held in Calgary, Canada (March 7-11, 2016). Co-authors: A. Yousefzadeh, Qi Li, Claudio Virues, Roberto Aguilera (Refereed Abstract, Poster).

257. “Use of Petroleum Engineering Concepts for Estimation of Pore Stimulated Reservoir volume (pore SRV) and Prediction of Well Performance,” presented at the CSEG Symposium held in Calgary, Canada (May 5, 2016). Co-authors: A. Yousefzaddeh, Roberto Aguilera (Abstract).

258. “A Petrophysical Dual Porosity Model for Evaluation of Secondary Mineralization and Tortuosity in Naturally Fractured Reservoirs,” paper SPE 180242 prepared for presentation SPE Low Permeability Symposium held in Denver, CO, USA (5-6 May 2016). SPE Reservoir Evaluation & Engineering (May 2017), SPE 180242-PA. Co-authors: Jaime Piedrahita, Roberto Aguilera (Refereed Journal).

259. “Generalized Methodology for Estimating Stress-Dependent Properties in Tight Petroleum Reservoirs and Its Application to Drill Cuttings Data,” paper URTeC 2461443 prepared for presentation at the Unconventional Resources Technology Conference held in San Antonio, Texas, USA (1-3 August 2016). SPE Reservoir Evaluation & Engineering (February 2019), SPE 189972-PA. Co-authors: Jaime Piedrahita, Bruno Lopez Jimenez, Roberto Aguilera (Refereed Journal).

260. “Integrated Interpretation of Microseismic and Petroleum Engineering Data for Comparison of Gas Production in Two Interfering Adjacent Wellpads in the Horn River Basin, Canada,” paper URTeC 2460254 prepared for presentation at the Unconventional Resources Technology Conference held in San Antonio, Texas, USA (1-3 August 2016). SPE Production and Operations (May 2020), SPE 197048-PA. Co-authors: A. Yousefzadeh, Qi Li, Claudio Virues, Roberto Aguilera. (Refereed Journal).

261. “Mexican Unconventional Plays: Geoscience, Endowment and Economic Considerations,” paper URTeC 2460927 prepared for presentation at the Unconventional Resources Technology Conference held in San Antonio, Texas, USA (1-3 August 2016). Co-authors: Marcela Cruz, Edgar Urban, Roberto F. Aguilera, Roberto Aguilera, Roberto Aguilera. SPE-189438-PA. SPE Reservoir Evaluation & Engineering (August 2018). (Refereed Journal).

262. “Refracturing vs. Infill Drilling – A Cost Effective Approach to Enhancing Recovery in Shale Reservoirs,” paper URTeC 2461604 prepared for presentation at the Unconventional Resources Technology Conference held in San Antonio, Texas, USA (1-3 August 2016). Co-authors: Edgar Urban, Daniel Orozco, Alfonso Fragoso, Karthik Selvan, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

263. “A New Method for Production Data Analysis and Well Testing Using Superposition-Rate,” paper URTeC 2458362 prepared for presentation at the Unconventional Resources Technology Conference held in San Antonio, Texas, USA (1-3 August 2016). SPE Reservoir Evaluation & Engineering – Reservoir Engineering (August 2017). Co-authors: P. Liang, Roberto Aguilera, L. Mattar. (Refereed Journal).

264. “Shale gas reservoirs: Theoretical, practical and research issues,” Roberto Aguilera, Petroleum Research, Chinese Petroleum Society (September 2016). (Refereed Journal).

265. “Development and Application of a 3D Analytical Anisotropic Model for Matching Microseismic Event Clouds during Hydraulic Fracturing and for Estimating Stimulated Reservoir Volume (SRV),” Canadian Energy Technology & Innovation Journal, CETI, Calgary, Alberta, Canada (January 2017). Co-authors: Guang Yu, Roberto Aguilera (Refereed Journal).

266. “Comparison of PKN, KGD, Pseudo3D, and Diffusivity Models for Hydraulic Fracturing of the Horn River Basin Shale Gas Formations Using Microseismic Data,” paper SPE-185057-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Canada (15–16 February 2017). Co-authors: A. Yousefzadeh, Qi Li, Claudio Virues, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

267. “Estimating Oil Saturation Index (OSI) from NMR Logging and Comparison with Rock-Eval Pyrolysis Measurements in a Shale Oil Reservoir,” paper SPE-185073-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Canada (15–16 February 2017). Co-authors: Jaime Piedrahita, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

268. “Localized Reservoir Characterization Model for Hydraulic Fracturing Design in Tight Reservoirs,” paper SPE-185031-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Canada (15–16 February 2017). Co-authors: Bukola Olusola, Roberto Aguilera and Nahla Boury (Refereed Abstract, Full Paper in Conference Proceedings).

269. "Coupling of Wellbore and Surface Facilities Models with Reservoir Simulation to Optimize Recovery of Liquids from Shale Reservoirs," paper SPE-185079-MS prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Canada (15–16 February 2017). SPE Reservoir Evaluation & Engineering – Reservoir Engineering (November 2018). Co-authors: Alfonso Fragoso, Mona Trick, Thomas Harding, Roberto Aguilera (Refereed Journal).

270. “Assessing the Long-Term Energy Landscape Using a Global Energy Market Model,” paper SPE 185579-MS prepared for presentation at the 2017 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Buenos Aires, Argentina (17 – 19 May 2017). Co-authors: Roberto F. Aguilera. Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

271. “Models for Calculating Organic and Inorganic Porosities in Shale Oil Reservoirs,” paper SPE 185591-MS prepared for presentation at the 2017 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Buenos Aires, Argentina (17 – 19 May 2017). Co-authors: Jaime Piedrahita, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

272. “Use of Dynamic Data for Estimating Average Reservoir Pressure, OGIP and Optimum Well Spacing in Shale Gas Reservoirs,” paper SPE 185598-MS prepared for presentation at the 2017 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Buenos Aires, Argentina (17 – 19 May 2017). SPE Reservoir Evaluation & Engineering (November 2018). Co-authors: Daniel Orozco, Roberto Aguilera (Refereed Journal).

273. “Evolution and Evaluation of SRV in Shale Gas Reservoirs: An Application in the Horn River Shale of Canada,” paper SPE 185609 prepared for presentation at the 2017 Latin America and Caribbean Petroleum Engineering Conference (LACPEC) held in Buenos Aires, Argentina (17 – 19 May 2017). SPE Reservoir Evaluation and Engineering (November 2018), SPE 185609-PA. Co-authors: Edgar Urban, A. Yousefzadeh, Claudio Virues, Roberto Aguilera (Refereed Journal).

274. “Improved Liquids Recovery from Shale Reservoirs by Gas Injection,” Roberto Aguilera, presented at the SPE Reservoir Evaluation and Production Optimization luncheon held in Calgary, Alberta (September 19, 2017).

275. “Moveable Oil Detection in a Shale Reservoir by Integrating Simultaneously Geochemical, Petrophysical and Geomechanical Models Developed from Well Logs and Laboratory Tests,” presented at Congreso Colombiano del Petróleo organized by ACIPET, Bogotá, Colombia (October 18-20, 2017). Co-Authors: Jaime Piedrahita, Roberto Aguilera.

276. “Linking the Emerging Mexican Eagle Ford Shale in Burgos Basin with the Eagle Ford in Mexico,” presented at EAGE/AMGP/AMGE in Mexico City (23-24 November 2017). Co-authors: Marcela Cruz Luque, Roberto Aguilera.

277. “Revisiting the Long-Run Energy Mix with The Global Energy Market Model (GEM),” Springer Mineral Economics, (May 2018). Co-authors: Roberto F. Aguilera, Roberto Aguilera, Roberto Aguilera (Refereed Journal).

278. "Forecasting the Performance of Multiporosity Shale Oil Reservoirs Under Primary Recovery and Huff-and-Puff Gas Injection Using a New Material Balance Technique,” paper SPE 189783 prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (13-14 March 2018). Co-authors: Daniel Orozco, Karthik Selvan, Roberto Aguilera, Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

279. "Breaking a Paradigm: Can Oil Recovery from Shales be Larger Than Oil Recovery from Conventional Reservoirs? The Answer Is Yes!" paper SPE 189784 prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (13-14 March 2018). Co-authors: Alfonso Fragoso, Karthik Selvan, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

280. "Determination of Thermal Maturity and Maturation Trajectories in Shale Petroleum Reservoirs with the Use of Modified Pickett Plots," paper SPE 189791 prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (13-14 March 2018). Co-authors: Bukola Olusola Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

281. "Eagle Ford and Pimienta Shales in Mexico: A Case Study," paper SPE 189797 prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (13-14 March 2018). Co-authors: Marcela Cruz. Roberto Aguilera. SPE Reservoir Evaluation & Engineering (November 2019). (Refereed Journal).

282. "A New Simple Analytic Equation for Estimating Asymmetric Growth of Stimulated Reservoir Volume in Anisotropic Shale Petroleum Reservoirs using Microseismic Data," paper SPE 189812 prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (13-14 March 2018). SPE Production and Operations (November 2019), SPE 189812-PA. Co-authors: Qi Li, Roberto Aguilera (Refereed Journal).

283. "3D Geomechanical Modeling in the Complex Fracture Network of the Horn River Shale: Permeability Evolution and Depletion." paper SPE 189795 prepared for presentation at the SPE Unconventional Resources Conference held in Calgary, Alberta, Canada (13-14 March 2018). Co-authors Edgar Urban, Claudio Virues, Roberto Aguilera, (Refereed Abstract, Full Paper in Conference Proceedings).

284. "An Investigation on the Feasibility of Combined Refracturing of Horizontal Wells and Huff and Puff Gas Injection for Improving Oil Recovery from Shale Petroleum Reservoirs." Paper SPE 190284 prepared for the SPE Improved Oil Recovery Conference, Tulsa, Oklahoma, USA (14-16 April 2018). Co-authors: Alfonso Fragoso, Karthik Selvan, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

285. “Parametric Probabilistic Models for Fluid Diffusivity Inversion and Forward Microseismic Generation Using Seismicity Rates." Paper SPE 190018-MS prepared for presentation at the SPE Western Regional Meeting, Garden Grove, California, USA (22-27 April 2018). Co-authors: Qi Li, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

286. “Optimization of Horizonal Wellbore Trajectory and Placement of Hydraulic Fracturing Stages in Tight Heterogeneous Gas Condensate Reservoirs Using Derivative Free Algorithms." Paper SPE 190071-MS prepared for presentation at the SPE Western Regional Meeting, Garden Grove, California, USA (22-27 April 2018). Co-authors: Bukola Olusola, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

287. "Unsupervised Statistical Learning with Integrated Pattern-Based Geostatistical Simulation.” Paper SPE 190087-MS prepared for presentation at the SPE Western Regional Meeting, Garden Grove, California, USA (22-27 April 2018). Co-authors: Qi Li, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

288. "Breaking a Paradigm: Can Oil Recovery from Shales be Larger Than Oil Recovery from Conventional Reservoirs? The Answer Is Yes," Best of SPE Papers Presented at the SPE Co-located Conferences, GEOCONVENTION, Canadian Society of Petroleum Geologists CSPG, Canadian Society of Exploration Geophysicists CSEG, Calgary, Alberta (May 7-9, 2018). Co-authors: Alfonso Fragoso, Karthik Selvan, Roberto Aguilera.

289. “Improved Oil Recovery from Shale Reservoirs by Huff and Puff Gas Injection,” Roberto Aguilera, prepared for presentation at the International Symposium on Carbonate and Unconventional Oil and Gas Reservoir Development, PetroChina Research Institute of Petroleum Exploration & Development, RIPED, Beijing, Peoples Republic of China (July 24-27, 2018).

290. “Physics-Based Fluid Flow Modeling of Liquids-Rich Shale Reservoirs Using a 3D 3-Phase Multiporosity Numerical Simulation Model.” SPE 191459-MS prepared for presentation at the SPE Annual Technical Conference and Exhibition held 24 – 26 September 2018 in Dallas, Texas, USA. Co-authors: Bruno Lopez Jimenez, Roberto Aguilera. SPE Reservoir Evaluation & Engineering (November 2019) (Refereed Journal).

291. "Eagle Ford Huff and Puff Gas Injection Pilot: Comparison of Reservoir Simulation, Material Balance and Real Performance of the Pilot Well." SPE 191575-MS prepared for presentation at the SPE Annual Technical Conference and Exhibition held 24 – 26 September 2018 in Dallas, Texas, USA. Co-authors: Alfonso Fragoso, Daniel Orozco, Graham Noble, Karthik Selvan, Roberto Aguilera. SPE Reservoir Evaluation & Engineering (February 2020). (Refereed Journal).

292. "Geochemical Productivity Index, Igp: An Innovative Way to Identify Potential Zones with Moveable Oil in Shale Reservoirs." SPE 191644-MS prepared for presentation at the SPE Annual Technical Conference and Exhibition held 24 – 26 September 2018 in Dallas, Texas, USA. Co-authors: Jaime Piedrahita, Roberto Aguilera. SPE Reservoir Evaluation & Engineering (November 2019). (Refereed Journal).

293. “Temporal Scale Analysis of Shale Gas Dynamic Coupling Flow.” Fuel Journal (Elsevier) (March 2019). Co-authors: Binglin Li, Yuliang Su, Xianwen Li, Wendong Wang, Maen M. Husein, Roberto Aguilera. (Refereed Journal).

294. “A Correlation for Estimating Biot Coefficient.” SPE195359-PA prepared for presentation at the SPE Western Regional Meeting held 23 - 26 April 2019 in San Jose, California, USA. June 2020. SPE Drilling and Completion. Co-authors: Qi Li, Roberto Aguilera, Heber Cinco-Ley (Refereed Journal).

295. “Matching of Pilot Huff-and-Puff Gas Injection Project in the Eagle Ford Shale Using a 3D 3-Phase Multiporosity Numerical Simulation Model.” SPE 195822-MS prepared for presentation at the SPE Annual Technical and Conference exhibition in Calgary, Canada (Sept 30-Oct 2, 2019). Co-authors: Alfonso Fragoso, Bruno Lopez Jimenez, Graham Noble, Roberto Aguilera, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

296. “Revisiting the Role of Natural Gas as a Transition Fuel.” Springer Mineral Economics (July 2020). Co-authors: Roberto F. Aguilera, Roberto Aguilera (Refereed Journal).

297. “A New Approach for Geomechanical Evaluations with Modified Pickett Plot,” SPE 198936-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020). Co-authors: Mohammadreza Malaieri, Raya Matoorian, Roberto Aguilera, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020).

298. “Migration of Liquid Hydrocarbons in Organic-Rich Reservoirs based on Geochemical and Well Log Analysis Explained with the use of New Practical Model,” SPE 198938-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020). Co-authors: Jaime Piedrahita, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020).

299. “Integration of Petrophysics and Biot Poroelastic Coefficient in Pickett Plots,” SPE 198959-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020). Co-authors: Bukola Olusola, Roberto Aguilera and Heber Cinco Ley (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020).

300. “Improving Recovery By Huff And Puff Gas Injection In Shale Oil Reservoirs,” SPE 199028-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020). Co-authors: Bukola Olusola, Daniel Orozco, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020). Published in SPE Reservoir Evaluation and Engineering, February 2021 (Refereed Journal).

301. “Effect of Oil Price on Oil Production,” SPE 199064-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020). Co-authors: Roberto F. Aguilera, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020).

302. “Naturally Fractured Reservoirs and their Link to Tight and Shale Petroleum Reservoirs,” Roberto Aguilera, SPE 199073-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020) (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020).

303. “Machine learning Applied to SRV Modeling, Fracture Characterization, Well Interference and Production Forecasting in Low Permeability Reservoirs,” SPE 199082-MS prepared for presentation at the SPE Latin American and Caribbean Petroleum Conference (LACPEC) in Bogota, Colombia (March 17-19, 2020). Co-authors: Edgar Urban-Rascon, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual LACPEC (July 27-31, 2020).

304. "Hydraulic Fracturing Modeling, Fracture Network and Microseismic Monitoring," SPE-199976-MS prepared for presentation at the SPE Unconventional Resources Conference in Calgary, Alberta, Canada. Co-authors: Edgar Urban Rascon, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual Unconventional Resources Conference (28 Sept – 2 Oct 2020).

305. "Permeability of Tight Sand And Shale Formations: A Dual Mechanism Approach For Micro And Nanodarcy Reservoirs," SPE-200010-MS prepared for presentation at the SPE Unconventional Resources Conference in Calgary, Alberta, Canada. Co-authors: AIi Ziarani, Roberto Aguilera and Albert Cui (Refereed Abstract, Full Paper in Conference Proceedings). Postponed due to COVID-19. Presented at Virtual Unconventional Resources Conference (28 Sept – 2 Oct 2020).

306. “Temporal Scale Analysis of Gas Flow in Tight Gas Reservoirs considering the Nonequilibrium Effect,” Geofluid Journal (April 2021). Co-authors: Binglin Li, Yuliang Su, Maen Husein, Roberto Aguilera, and Mingjing Lu (Refereed Journal).

307. “A New Pore Pressure Prediction Model for Naturally Fractured Shales and Stacked Plays: The Effect of Active Hydrocarbon Generation - A Powder River Basin Case Study,” prepared for presentation at the 2021Unconventional Resources Technology Conference (URTeC) in Houston, Texas. Co-authors: Daniel Orozco Ibarra and Roberto Aguilera (26-28 July 2021). (Refereed Abstract, Full Paper in Conference Proceedings).

308. “Improving Oil Recovery from Shale Reservoirs by Huff and Puff Gas Injection,” Special Session at Asia Pacific SPE/IATMI APOGCE (October 14, 2021). Presenter: Roberto Aguilera

309. “Vaca Muerta: An Emerging Shale Petroleum Reservoir,” SPE-205573-MS, prepared for presentation at the virtual SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition held from 12 – 14 October 2021. Co-authors: Rahimah Abd Karim, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).

310. “From Petroleum System Evaluation to Geomodeling, Production Forecasting and Reserves Determination in Unconventional Reservoirs,” paper URTEC-208389-MS prepared for presentation at the virtual Asia Pacific URTeC, 16 – 18 November 2021. Co-authors: Cristhian F. Aranguren Silva, Antonio Ch. S. Gomes, Roberto Aguilera (Refereed Abstract, Full Paper in Conference Proceedings).