Special considerations in identification of fluid barriers to localize remaining oil reserves and enhance production: A case study of Samotlor field (AB4-5 formations)
D.S. Smirnov, A.A. Shkitin, I.A. Likhoded, E.L. Arkhipova, D.Yu. Pisarev
DOI: https://doi.org/10.25689/NP.2021.4.55-69
Abstract
The authors conducted an in-depth analysis of geological structure and completion quality, and evaluated the efficiency of production enhancement operations conducted recently. Most of the reserves were found to be localized in the top section of poor reservoir quality, as well as in the bottom section in presence of shale barrier, more than 1 m thick, isolating the highly productive non-compartmentalized reservoir section.
The present research effort is a comprehensive study of the current status of development of AB4-5 production formations for efficient planning of production enhancement operations, reinterpretation of geological structure, completion strategy and consequently, planning of recorrelation for individual units of production target.
Key words:
Samotlor field; shale barrier; coning; АВ4-5 production target; non-compartmentalized production target; division of section into units; recorrelation; production performance analysis; analysis of completion quality; late stage of field development; localization of residual reserves; planning of production enhancement operations
References
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Authors
D.S. Smirnov, Deputy General Director for Geology and Reservoir Engineering, Tyumen Petroleum Research Center
79/1, Osipenko st., Tyumen, 625002, Russian Federation
E-mail: dssmirnov@tnnc.rosneft.ru
A.A. Shkitin, Head of Department, Tyumen Petroleum Research Center
79/1, Osipenko st., Tyumen, 625002, Russian Federation
E-mail: aashkitin@tnnc.rosneft.ru
I.A. Likhoded, Chief Project Engineer, Tyumen Petroleum Research Center
79/1, Osipenko st., Tyumen, 625002, Russian Federation
E-mail: ialikhoded@tnnc.rosneft.ru
E.L. Arkhipova, Team Leader, Tyumen Petroleum Research Center
79/1, Osipenko st., Tyumen, 625002, Russian Federation
E-mail: elarkhipova@tnnc.rosneft.ru
D.Yu. Pisarev, Deputy General Director – Chief Geologist, АО «Самотлорнефтегаз»
14, Kuzovatkina st., Nizhnevartovsk, 628606, Russian Federation
E-mail: dypisarev@smn.rosneft.ru
For citation:
D.S. Smirnov, A.A. Shkitin, I.A. Likhoded, E.L. Arkhipova, D.Yu. Pisarev Osobennosti vydelenija fljuidouporov v razreze s cel'ju lokalizacii i dovyrabotki ostatochnyh zapasov nefti na primere gruppy plastov AV4-5 Samotlorskogo mestorozhdenija [Special considerations in identification of fluid barriers to localize remaining oil reserves and enhance production: A case study of Samotlor field (AB4-5 formations)]. Neftyanaya Provintsiya, No. 4(28), Part 1, Special issue, 2021. pp. 55-69. DOI https://doi.org/10.25689/NP.2021.4. 55‑69 (in Russian)