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Event
SPE Permian Basin - Section Meeting - September 26 2019
Petroleum Club of Midland
September 26, 2019
11:30am to 1:00pm
Cetin (Chet) Ozgen
Reservoir Aspects of Cyclic Hydrocarbon Gas Injection in Unconventional Oil Resources
Abstract- Proving the commercial feasibility of any improved oil recovery application starts with the assessment of the reservoir and the fluids that are involved. Hence, this presentation will concentrate on the reservoir aspects of such application. The analysis of cyclic (huff-n-puff) gas injection process will be addressed because of its success in the Eagle Ford, and the known failures of alternative displacement processes in various shale oil resources. Also, due to its practicality and availability, this talk covers hydrocarbon gas injection, rather than the alternative injectants.
From reservoir fluids perspective, we wish to have significant concentration of oil that can be contacted by the injected gas and preferably form a miscible phase. In the Permian unconventional resources, this is a significant problem due to high water saturation that is present in the matrix. The other significant handicap of the Permian relates to the conformity of the injected gas, which is highly mobile, especially within the vertical fractures generated through the stimulation operations.
Using public information and generic models, we will first present our understanding of the reservoir behavior in the Eagle Ford during gas huff-n-puff operations. This includes the impact of the hydraulic fracture design and the net stress changes prior to injection. The second portion of the talk covers the impact of various design parameters, such as; the injection order of the wells, fill-up volume and operational pressure. Finally, we investigate whether a similar huff-n-puff design can be applied in the Wolfcamp A and B formations of the Permian. If so, what are the impacts of geology, petrophysics and hydraulic fracture design on the huff-n-puff performance?
Bio - Mr. Ozgen is the owner and Technical Director of NITEC LLC, an international oil and gas reservoir engineering consulting firm located in Denver, Colorado. Since 1995, he has performed or managed in excess of 100 reservoir studies involving dry gas, gas condensate, volatile oil, and black-oil fields. Reservoir depositional environments have included Eolian, fluvial, deltaic, near-shore, turbidites, volcanics, basements, and more recently, shale oil and shale gas resources.
Mr. Ozgen has published sixteen technical papers on various aspects of numerical simulation and is the co-author of the SPE Primer; Reservoir Simulation: History Matching and Forecasting (2013). Within the Society of Petroleum Engineers, he chairs the Forum Series Coordination Committee, and serves in FSI, M&I and RD&D committees. He has chaired Industry Forums, Applied Technology Workshops, and has been an invited speaker and panel member at SPE events.
Mr. Ozgen worked for Scientific Software-Intercomp, Inc. (SSI) from 1985 to 1993. He held various software development and engineering consulting positions, including Vice President of Reservoir Engineering Software Products. Prior to his employment at SSI, he worked at Sohio Petroleum Corporation (currently BP) from 1982 to 1985. Mr. Ozgen is an at-large Director/Partner at Ridgeway Kite Software Ltd. (UK).
Mr. Ozgen holds B.Sc. degree in Chemical Engineering from University of Pittsburgh and M.S. degree in Petroleum Engineering from Stanford University. He has received scholastic achievement awards, grants and scholarships, as well as the Distinguished Membership Award form Society of Petroleum Engineers.
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LocationPetroleum Club of Midland (View)
501 W Wall St.
Midland, TX 79701
United States
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| Kid Friendly: Yes! |
| Dog Friendly: No |
| Non-Smoking: Yes! |
| Wheelchair Accessible: Yes! |
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