НЕФТЯНАЯ ПРОВИНЦИЯ

Abstract

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AB4-5 production target of Samotlor oil-gas-condensate field is marked by presence of clearly identified highly productive solid block section, as well as the presence of low-permeability thinly-laminated reservoirs exhibiting both vertical and horizontal heterogeneity. Reserves in non-compartmentalized reservoir section have almost been depleted, while their localized distribution pattern interferes with the planning of production enhancement operations.

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:

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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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1. Chusovitin A.A., Arzhilovskiy A.V., Baranov A.V. [et al]. Dopolnenie k utochnennomu proektu razrabotki Samotlorskogo mestorozhdeniya [Supplement to updated Samotlor field development project]. Tyumen: OOO TNNTs, 2012. (in Russian)

2. Smirnov D.S., Kuzenkov V.Z., Aksarin V.A. Tekhnologicheskiy proekt razrabotki Samotlorskogo neftegazokondensatnogo mestorozhdeniya [Samotlor oil-gas-condensate field development project]. Tyumen: OOO TNNTs, 2017. (in Russian)

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6. Cao, D., Ni, Y., Yao, F., Weng, D., and Fu, G. 2006. Application and Realization of Fuzzy Method for Selecting Wells and Formations in Fracturing in Putaohua Oilfield: Production and Operations: Diagnostics and Evaluation. Paper SPE 106355 presented at the SPE Technical Symposium of Saudi Arabia Section, Dhahran, Saudi Arabia, 21–23 May. doi: 10.2118/106355-MS.  (in English)

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Authors

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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:

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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)