Abstract

The paper discusses the challenges associated with the operation of complex and expensive telemetry equipment intended to control and manage production from a multi-layered field using dual completion technology. Wireless and wired telemetry systems are disadvantageous in that the former fail to provide remote control at long distances and the latter lack the required reliability. Thus, the authors come up with a new method for real-time monitoring and management of reservoir pressure based on measurements of current gas-oil ratio of the wellstream produced from each production zone using dual completion system for production and maintenance of relative stability of gas-oil ratios through real-time pressure management using dual completion system for injection. It is proposed that commercially available AGZU-OZNA measuring units equipped with appropriate sensors be used for measurements.

Field trials of the proposed reservoir pressure management method in two-layer reservoir of the Tedynskoye field operated by OOO Lukoil-Severneftegaz and in a multi-layered field of OOO Sheshmaoil proved its efficiency and became a rationale for development of the corresponding procedural guidelines and for patent application.

Key words:

dual completion system for production, dual completion system for injection, reservoir pressure, saturation pressure, current gas-oil ratio, relative pressure differential

References

Gabdrakhmanov N.Kh. Davydova O.V., Kordik K.E. Tekhnologii opredeleniya gazovogo faktora nefti na skvazhinakh peredvizhnymi ustanovkami [Technologies for determination of gas-oil ratio in wells using mobile units]. Problemy sbora, podgotovki i transporta nefti i nefteproduktov, 2010, No. 4 (82), pp. 63-68. (in Russian)

Yu.A. Gutorov, O.V. Davydova K voprosu o vozmozhnosti sozdanija ustrojstva dlja operativnogo otbora glubinnyh prob nefti i jekspressocenki ih gazovogo faktora [On development of equipment for time-efficient crude oil sampling and rapid gas-oil ratio measurement]. Neftyanaya Provintsiya, No. 1(17), 2019. pp. 215-226. DOI https://doi.org/10.25689/NP.20...;(in Russian)

Davydova О.V. Vliyanie temperatury zhidkosti na ostatochnoe kolichestvo rastvorennogo gaza v nefti pri izmereniyakh gazovogo faktora [Effects of fluid temperature on residual solution gas content during measurements of gas-oil ratio]. Neftegazovoye delo, 2013, No. 1, pp. 181-189. – URL: http://www.ogbus.ru. (in Russian)

Valeev М.D., Davydova О.V., Mingulov Sh.G. Razrabotka tekhnologii izmereniya polnogo gazovogo faktora nefti [Development of technology for measurement of full gas-oil ratio]. Neftepromyslovoye delo, 2017, No. 5, pp. 49-52. (in Russian)

Valeev М.D., Gazarov А.G., Kordik К.Е., Davydova О.V. Sravnitelnyy analiz izmeritelnykh ustanovok dlya opredeleniya gazovogo faktora [Comparative analysis of measuring units for determination of gas-oil ratio]. Neftyanoye Khozyaystvo, 2011, No. 1, pp. 96-98. (in Russian)

O.V. Davydova, N.Kh. Gabdrakhmanov K voprosu o putjah realizacii jeffektivnyh sposobov povyshenija tochnosti izmerenija gazovogo faktora pri jekspluatacii neftjanyh mestorozhdenij na pozdnej stadii razrabotki [On implementation of efficient methods to improve accuracy of measuring gas-oil ratio in mature fields]. Neftyanaya Provintsiya, No. 1(17), 2019. pp. 156-188. DOI https://doi.org/10.25689/NP.20...;(in Russian)

Rakhmaev L.G., Gutorov Yu.A., Davydova O.V. RF Patent No. 2726664. Sposob razrabotki neftyanoy mnogoplastovoy zalezhi [Method for development of multi-layered oil reservoir]. No. 2019136504: appl. 14.11.2019, publ. 15.07.2020; Patent holder – PJSC TATNEFT – URL: https://www1.fips.ru (reference date 17.07.2020). (in Russian)

Authors

For citation:

О.V. Davydova, L.G. Rakhmaev, Yu.А. Gutorov Issledovanie vozmozhnosti operativnogo upravlenija plastovym davleniem mnogoplastovoj zalezhi nefti na osnove obespechenija stabilizacii tekushhego gazovogo faktora produkcii, dobyvaemoj iz kazhdogo plasta [Investigating the feasibility of real-time pressure management in multilayered oil reservoirs based on maintaining the stability of producing gas-oil ratio of each production zone]. Neftyanaya Provintsiya, No. 3(23), 2020. pp.139-152. DOI https://doi.org/10.25689/NP.2020.3.139-152 (in Russian)