Optimizing Gas Fields using Integrated Asset Modeling

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Society of Petroleum Engineers Continuing Education Short Course Optimizing Gas Fields using Integrated Asset Modeling Instructors: Dr. Michael H. Stein, Premium Petroleum Consulting Dr.

S. M. (Sam) Avasthi, P.E., Avasthi & Associates, Inc.

Duration: One Day Who Should Attend Petroleum, reservoir, production and facilities engineers, as well as asset managers interested in managing and maximizing profitability from gas field assets should attend this course. Since this topic is of tremendous interest to the SPE members around the world, presentation of this course is expected to attract large attendance; therefore, those who are interested in attending this course should register early. Since Excel programs will be provided in the class, the course registrants should plan to bring their notebook computers to the class.

About the Course This course will discuss practical state-of-the-art techniques for optimizing gas field assets; techniques that are based on the concept of integrated asset modeling, and working together through an asset team. Integration of reservoir, well inflow, wellbore, pipeline, and compressor models bring together all of the interested parties and allows for an integrated optimal solution, rather than different parties working in a vacuum and arriving at solutions for the separate components that do not fit well. This course goes ... more. less.

beyond standard nodal analysis courses available in the industry, as in this course the reservoir and facilities components are also incorporated. The instructors have extensive industry experience in optimizing gas field assets and using integrated asset modeling approach for achieving that objective. In teaching this course, the instructors plan to: (1) discuss how the concept of integrated asset modeling works, (2) present examples of various applications of optimization used to modify existing facilities and increase gas rates and reserves, (3) give the course attendees some practical and useful problems to work on, and (4) provide each course attendee a workbook containing copies of the instructors 9 PowerPoint presentations, and solutions to the problems. Integrated asset modeling is currently a very important skill set in many major and independent oil & gas companies, as well as in national oil & gas companies around the world. Integrated asset modeling combines skill sets of all the technical personnel on gas production asset teams. Many companies utilize this technology over reservoir simulation approach because answers can be obtained quickly. This speed aspect is extremely important to those oil & gas industry managers who have to make business investment decisions rather quickly for presentation to the upper managements, and be responsible for those decisions, and don 9t have the luxury of waiting for results from more time consuming methods. Integrated asset models can be readily updated to manage gas field performance throughout the life of the field. Integrated asset modeling is now being combined with real-time automation data to monitor daily performance. In the future, we expect that integrated asset modeling will also be married to monitoring CO 2 emissions as the effect of fuel consumption on facilities can easily be incorporated. The big advantage of optimizing gas fields through integrated asset modeling is that the optimal results are consistent with facilities, well, and reservoir constraints, and are thus more realistic. Conventional optimization involves isolated studies of facilities and wells, and reservoirs and wells; the results of these studies are often inconsistent, and are not in agreement with the actual performance. For example, in one large tight gas field on which one of the instructors recently worked on, the reservoir engineers generally over predicted the increase in net gas rate from new wells by 20%. The integrated asset modeling approach correctly showed that the new wells caused bottle-necks in the surface facilities, thus yielding a lower net increase in gas rate from new wells, and this was precisely what operation and facility engineers had experienced in the field. This course is ideally suited for presentation prior to the SPE conferences, in the United States, Canada, Latin America, Russia, Asia, Australia, the Middle East, North and West Africa, and the North Sea regions, where presently there is tremendous interest in developing and optimizing gas fields. The instructors, seasoned petroleum reservoir engineers and long-time members of the SPE, offer their extensive experience and expertise in optimizing gas field assets, and using the integrated asset modeling approach for achieving that objective. Their extensive industry experience covers petroleum, reservoir, simulation, EOR, ECBM, production and facilities engineering. The instructors also have extensive experience in teaching courses to engineers around the world, and for the SPE. Instructors 9 Biographies Dr. Michael H. (Mike) Stein retired from BP in 2006 after 28 years of service, and is currently an independent engineering consultant, specializing in enhanced oil recovery and integrated asset modeling. With BP he was most recently a team leader of the Integrated Asset Modeling group in BP 9s Technology Center in Houston. He was involved in numerous technical service assignments with integrated asset modeling around the world, as well as teaching company courses on integrated asset modeling. He also directed research on applying integrated asset modeling to monitor corrosion and erosion on a real time basis, and to also couple integrated asset modeling with reservoir simulation. He has co-authored several SPE papers in the area of optimizing gas reservoirs through integrated asset modeling, and linking integrated asset modeling to real-time automation data to monitor corrosion and erosion. Prior to working in the area of integrated asset modeling, Dr. Stein spent most of his 28 years with BP as a reservoir engineer. His efforts were primarily in the areas of CO 2 flooding and reservoir modeling. He has written many SPE papers in these areas, and he is one of the co-authors of the SPE Monograph Volume 22, 8 Practical Aspects of CO 2 Flooding 9. In addition to this 8 Optimizing Gas Fields 9 course, he is a co-instructor of one other SPE course: 8 Practical Aspects of CO 2 Flooding 9. He also holds three U.S. Patents, two in enhanced coal bed methane (ECBM) production, and one in automatic waterflood history matching. In 1991, he received the Distinguished Inventor award (presented by the Intellectual Property Owners, Inc.) for a patent on nitrogen injection in coal beds for enhanced coal bed methane (ECBM) recovery. Dr. Stein is an engineering alumnus of the University of Missouri and Purdue University; he holds a B.S. degree in Chemical Engineering from the University of Missouri, and M.S. and Ph.D. degrees in Chemical Engineering from Purdue University. He is a long standing member of the SPE, has served on the SPE editorial committees, and chaired the SPE Reservoir Engineering committee to select papers for the Annual SPE Meeting. His e-mail address is: mhsteineng@yahoo.com Dr. S. M. (Sam) Avasthi, P.E. is president of Avasthi & Associates, Inc., a worldwide petroleum consulting company, headquartered in Houston, Texas. In addition to managing the company, that he founded in 1990 and that now provides Petroleum Engineering, Geomechanics and Geosciences, CO 2 Flooding EOR and CO 2 Geosequestration, Oil & Gas Field Operations, and Management Consulting Services around the world, he is active in providing consulting and training services in his own areas of expertise. Dr. Avasthi has more than 30 years worldwide oil & gas industry experience in oil & gas reservoir engineering and simulation, mature oilfield revitalization, CO 2 Flooding EOR project design, evaluation and optimization, gas, gas-condensate, volatile oil, and black oil reservoir asset optimization, and training. He has lectured on numerous topics in his areas of expertise in the United States, Japan, South-East Asia, the Middle East, Europe, and Latin America. In addition to this 8Optimizing Gas Fields 9 course, Dr. Avasthi is a co-instructor of two other SPE courses: 8Practical Aspects of CO 2 Flooding 9, and 8Geological Sequestration of CO 2 9 . In his other SPE activities , during the last few years, a paper co- authored by him on 8Planning EOR Projects 9 , was presented at the SPE International Petroleum Conference in Mexico, held in Puebla, Mexico, during November 2004; and an article based on that paper was published under Management Series in March 2005 issue of JPT. Another paper co-authored by him on 8Planning EOR Projects in Offshore Oil Fields 9 was presented at the Latin American and Caribbean Petroleum Engineering Conference (LACPEC) in Rio de Janeiro, Brazil, during June 2005. Dr. Avasthi is an engineering alumnus of Indian School of Mines, Imperial College, and Texas A&M University. He earned a Ph.D. degree in Petroleum Engineering from Texas A&M University, and thereafter was a Research Fellow in Chemical Engineering at Rice University. He is a registered professional engineer in Texas, a senior member of the SPE, and a Technical Editor for the SPE Reservoir Evaluation & Engineering Journal . His e-mail address is: SMAvasthi@Gmail.com Society of Petroleum Engineers Continuing Education Short Course Optimizing Gas Fields using Integrated Asset Modeling By Dr. Michael H. (Mike) Stein and Dr. S. M. (Sam) Avasthi, P.E. One-Day Short Course Registration for Short Course&&&&&&&&&&&&&&&.8 to 8:30 a.m. SPE Morning Session 8:30 a.m. to 12 Noon 1. Student Intro/ Course Expectations & Intro &&&&&&&&&&........ 8:30 3 8:45 2. Overview of Integrated Asset Models (IAM)&&&&&&&&&...&....8:45 3 9:20 3. Real Examples of Integrated Asset Models&&&&&&&&&..&&&9:20 3 9:45 Break 9:45 3 10:00 4. Gas Reservoirs PVT&..&&&&&&&. &&&&&&&&&&& 10:00 3 10:30 5. Class Problem 1 (PVT) &..&&. &&&&&&&&&&&&&&. 10:30 3 10:45 6. Material Balance for Gas Reservoirs &&&&&&&&&&&&&...10:45 3 12:00 Lunch 12:00 3 12:45 Afternoon Session ______________________________________12:45 to 5:30 p.m. 7. Class Problem 2 (Material Balance Plots)&&.&&&...&&&&&.&.12:45 3 1:15 8. Nodal Analysis for Gas Reservoirs &.&&&&&&&&&.&&.&..&.1:15 3 2:15 9. Class Problem 3 (Nodal Analysis)&&&&&&&&&&&&&&....... 2:15 3 2:45 Break 2:45 3 3:00 10. Modeling Pipelines and de-bottlenecking &.&&..&.&&&&&&&.. 3:00 3 3:40 11. Compressors &&&&&&&&&.&&&&&.&&&&&&&&&. 3:40 3 4:00 12. Setting up IAM Gas Field Models &&.&&.&&&&&&.&....&..&. 4:00 3 4:30 13. Class Problem 4 (IAM Model)&&&&&&&&&&&&&&.&....... 4:30 3 5:00 Question and Answer Session&&&&&&&&&&&..&&&&&...&.&.5:00 3 5:20 Feedback and Course Evaluation&&&&&&&&&&&&&&..&&&...5:20 3 5:30 Adjourn &&&&&&&&&&&&&&&&&&&&&&&&&......&&&& 5:30 pm Society of Petroleum Engineers Continuing Education Short Course Optimizing Gas Fields using Integrated Asset Modeling By Dr. Michael H. (Mike) Stein and Dr. S. M. (Sam) Avasthi, P.E. Course Manual Table of Contents Section 1 ___ Introduction Section 2 ___ Overview of Integrated Asset Models (IAM) Section 3 ___ Real Examples of Integrated Asset Models Section 4 ___ Gas Reservoirs PVT Section 5 ___ Class Problem 1 (PVT) Section 6 ___ Material Balance for Gas Reservoirs Section 7 ___ Class Problem 2 (Material Balance Plots) Section 8 ___ Nodal Analysis for Gas Reservoirs Section 9 ___ Class Problem 3 (Nodal Analysis) Section 10 ___ Modeling Pipelines and de-bottlenecking Section 11 ___ Compressors Section 12 ___ Setting up IAM Gas Field Models Section 13 ___ Class Problem 4 (IAM Model) Section 14 ___ References Section 15 ___ Appendix

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