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Neftyanaya Provintsiya 
No.4(28),2021, Part 1, Special issue
 

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

PP.55-69

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Abstract
References

Abstract

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:

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

  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)

  3. Muhametzyanov R.N., Litvakov V.U. Osobennosti razrabotki vodoneftyanoy zalezhi produktivnogo gorizonta AB4-5 Samotlorskogo neftegazovogo mestorozhdeniya [Special considerations in development of AB4-5 water/oil accumulation of Samotlor oil-gas field]. Neftepromyslovoe Delo [Petroleum Engineering], 1976, No. 5. (in Russian)

  4. SPE-201286-MS. Technology for Rapid Well Ranking and Screening for Pumping Optimization with Regard to Subsurface Risks and Economics. A Case Study of a Giant Oil Brownfield. Authors: Ivan Likhoded, Dmitriy Smirnov, Anton Shkitin, Dmitriy Deriglazov, Aleksey Gudoshnikov, Denis Nyunyaikin, and Andrey Kochenkov, PJSC Rosneft Oil Company. (in English)

  5. Alimonti, C. and Falcone, G. 2004. Integration of Multiphase Flow-metering, Neural Networks, and Fuzzy Logic in Field Performance Monitoring. SPE Production & Facilities 19 (1):25–32. doi: 10.2118/87629-PA. (in English)

  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)

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)

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   © ​D.S. Smirnov, A.A. Shkitin, I.A. Likhoded, E.L. Arkhipova, D.Yu. Pisarev, 2021
       This is an open access article under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)

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