НЕФТЯНАЯ ПРОВИНЦИЯ

Abstract

​

​The article considers the method of ranking the zones of localization of residual recoverable reservoir reserves by the degree of risk for further design of sidetracking and ensuring their involvement in the development. Modern reservoir simulation software permits history matching of almost any object. However, due to the geological heterogeneity of the formation, it is difficult to take into account the actual direction of the filtration flows. To improve the effectiveness of implemented measures, an integrated approach and a comprehensive analysis of the structure of residual reserves is required. An integrated approach enables to establish not only the physical causes of the entrapment or retention of oil in the porous medium, but also to evaluate the distribution of current oil saturation area and cut deposits to establish containment zones of residual reserves, to predict technological efficiency of drilling operations, to identify prospective areas for drilling. According to the results of geophysical and field-geophysical studies of wells, when analyzing the heterogeneity of the reservoir's geophysical properties by area and section, an uneven distribution of residual reserves across productive formations was established. An assumption is made about the advanced development of reserves in the upper part of the formation and a conclusion is made about the presence of zones of high concentration of residual oil reserves in the lower part of the formation. The authors have developed an express method that can be used to identify zones that are not involved in the development due to vertical anisotropy for planning the sidetracking without building of reservoir simulation model. The application of the method is considered on the example of formation X of the Western Siberia deposit, represented by cretaceous deposits. The proposed method is supposed to be scaled to objects with similar geological and physical characteristics for planning geological and technical activities.

Key words:

​

residual recoverable oil reserves, sidetracking, minimization of drilling risks

References

 

1. Pichugin О.N, Nikiforov S.V., Shubin A.S., Sannikov I.N., Bogdanova V.V. Optimizatsiya razrabotki mestorozhdeniy na osnove bureniya bokovykh stvolov. Kontseptsiya, metodika, instrumentariy [Optimization of field development through sidetrack drilling. Concept, methodology and apparatus].  Interval. Peredovye neftegazovye tekhnologii, 2008, No. 7, pp. 38-45. (in Russian)

2. Nazyrov М.R., Krivina Т.G., Eremeeva S.V., Zolotareva N.P. Postoyanno deystvuyushchaya geologo-tekhnologicheskaya model' ONGMK: sostoyanie i problemy [Permanently updated geological and reservoir simulation model: State and problems]. Neftepromyslovoye delo, 2007, No. 6, pp.15-20. (in Russian)

3. Lipchinsky К.N., Kiselev К.V., Andreev О.V. Izmenenie struktury zaleganiya ostatochnykh zapasov nefti pod deystviem estestvennykh i tekhnogennykh faktorov [Changes in the structure of occurrence of remaining oil reserves under the influence of natural and technology-related factors]. Vestnik Tyumenskogo gosudarstvennogo universiteta. Social'no-ekonomicheskie i pravovye issledovaniya, 2007, No. 3, pp. 3–10. (in Russian)

4. Ganiev Sh.R., Khuzina D.I. Razrabotka ekspress-metodiki strukturirovaniya izvlekaemykh zapasov uglevodorodov dlya analiza razrabotki mestorozhdeniy s trudnoizvlekaemymi zapasami [Development of express methods for structure inventory of recoverable hydrocarbon reserves to analyze the development of fields with hard-to-recover reserves]. Ufa: Ekologicheskie problemy neftedobychi, 2018, 103 p. (in Russian)

5. Khuzina D.I., Ganiev Sh.R. Ekspress-metodika effektivnosti razrabotki mestorozhdeniy na osnove avtomatizirovannogo podkhoda verifikatsii zapasov [Express method for evaluation of field development efficiency based on automated approach to reserves verification. Aktual'nye problemy nauki i tekhniki [Actual problems of science and technology]. Proceedings of XII International Conference of Young Scientists (Ufa, 1 June 2019). Ufa: UGNTU Publ. 2019, pp.28-29 (in Russian)

6. Dan DiLuzio. Key Changes from the Petroleum Resources Management System (PRMS 2007) to the PRMS 2018 PRMS Update Project Lead, SPE Oil and Gas Reserves [available at Internet] (reference date: 15.01.2019). (in English)

​

Authors

​

E.R. Agishev, Head of Drilling Support and Sidetracking, «RN-BashNIPIneft LLC»

96/2, Revolyutsionnaya st., Ufa, 450078, Russian Federation

E-mail:AgishevER@bnipi.rosneft.ru

 

A.G. Gimranova, Specialist of Reservoir Simulation Modeling Department, «RN‑BashNIPIneft LLC»

96/2, Revolyutsionnaya st., Ufa, 450078, Russian Federation

E-mail: GimranovaAG@bnipi.rosneft.ru

 

D.A. Slyadneva, Leading Specialist of Drilling Support and Sidetracking, «RN-BashNIPIneft LLC»

96/2, Revolyutsionnaya st., Ufa, 450078, Russian Federation

E-mail: SlyadnevaDA@bnipi.rosneft.ru

 

A.V. Ramadanov, Leading Specialist of Drilling Support and Sidetracking, «RN‑BashNIPIneft LLC»

96/2, Revolyutsionnaya st., Ufa, 450078, Russian Federation

E-mail: RamadanovAV@bnipi.rosneft.ru

​

For citation:

 

E.R. Agishev, A.G. Gimranova, D.A. Slyadneva, A.V. Ramadanov Lokalizacija zon ostatochnyh zapasov nefti pravoberezhnoj gruppy mestorozhdenij PAO «Slavneft'-Megionneftegaz» [Localization of the residual oil reserve areas of the rightbank group of fields of PJSC "Slavneft-Megionneftegaz»]. Neftyanaya Provintsiya, No. 2(22), 2020. pp.36-48. DOI https://doi.org/10.25689/NP.2020.2.36-48 (in Russian)