Analysis of Processes Mechanized Oil Mining with the Methods Theory of Electrical Circuits

The authors investigate the problems of the development of the oil and gas complex at the last stage of operation, when oil is extracted by lifting. The main methods of lifting employed in the Russian Federation and the USA are described. A particular focus is placed on large water cuts at this stage of oil production. Literature on the issue under investigation is reviewed and the problem is set to analyze and construct models of oil production processes at the stage of well operation by lifting methods using network analysis (electrical circuits) in order to rationally manage all processes comprehensively. A typical flow chart of the oil production process by lifting methods is described. Technological processes of oil production are compared to processes in electric circuits. Thus the process of pumping purified formation water into injection wells by means of block cluster pumping units is similar to the process of recharging a battery using an electric power generator. The process of filling a production well with gas-liquid mixture displaced from the formation under pressure of injection wells is similar to the process of charging a capacitor from a battery, the process of lifting liquid from production wells using production pumps — to the process of discharging a capacitor on an active load. The simplified electrical diagram of a typical flow chart of oil production processes at this stage is given. Based on the given equivalent electrical circuit of technological processes, according to the laws of theoretical electrical engineering, models of the battery charging, capacitor charging and discharging processes are built. The table of correspondence of the parameters of technological and electrical circuits is presented on the basis of which the authors propose simplified models of the processes of pumping purified formation water into injection wells using unit cluster pumping stations, of filling a production well under pressure of the injection well, lifting liquid from production wells by means of suction pumps and conditions under which various operating modes of lifting processes are achieved.

1. The energy strategy of Russia for the period until 2030, available at: http://minenergo.gov.ru/activity/energostrategy.

2. Ibatullin R. R., Ibragimov N. G., Takhautdinov Sh. F., Khisamov R. S. Oil recovery at a late stage of field development, Moscow, Nedra, 2004, 292 p. (in Russian).

3. Anand A., Ismali A. De-Risking Polymer Flooding of High Viscosity Oil Clastic Reservoirs — A Polymer Trial in Oman, Paper SPE 181582 presented at the SPE Annual Technical Conference and Exhibition held in Dubai, UAE, 26—28 September 2016.

4. Al Kalbani H., Mandhari M. S., Al-Hadrami H. et al. Treating Back Produced Polymer to Enable Use of Conventional Water Treatment Technologies, Paper SPE 169719 presented at the SPE EOR Conference at Oil and Gas West Asia held in Muscat, Oman, 31 March — 2 April 2014.

5. Kryanev D. Y., Zhdanov S. A. Application of enhanced oil recovery methods in Russia and abroad, Burenie i Neft, 2011, no. 2, pp. 22—26 (in Russian).

6. Jouenne S., Klimenko A., Levitt D. Polymer Flooding: Establishing Specifications for Dissolved Oxygen and Iron in Injection Water, Paper SPE179614 presented at the SPE Improved Oil Recovery Conference held in Tulsa, Oklahoma, USA, 11—13 April 2016.

7. Market research of sucker rod pumps. (2010) Analytical report. Research. Techart. available at: http://www.techart.ru/files/research/walking-beam-pumping-unit.pdf (in Russian).

8. Neely A. B., Tolbert, H. E. (1988) Experience with Pump-Off Control in the Permian Basin, SPE Paper No. 14345, SPE Technical Conference and Journal of Petroleum Technology, May, pp. 645—648.

9. Neely A. B., Gibbs S. G. Computer Diagnosis of Downhole Conditionis in Soker Rod Pumping Wells, Journal of Petroleum Technology, January 1966, pp. 91.

10. Khakimyanov M. I. Automation of management of power supply systems: an electronic textbook, Ufa, Publishing House of Ural State Technical University, 2011, 91 p. (in Russian).

11. Grayfer V. I., Galustyants V. A., Vinitskiy M. M. The methodology and practice of innovation management (case study of the oil industry), Moscow, GUL Neft i Gaz Publishing House of the Russian State University of Oil and Gas named after I. M. Gubkin, 2002, 350 p. (in Russian).

12. Karmakar G. P., Chandrima Chacraborty. Improved oil recovery using polymer gelants: a review, Indian Journal of Chemical Technology, 2006, no. 13, pp. 162—167.

13. Korshak A. A., Shammazov A. M. Basics of oil and gas business. Textbook for high schools, Ufa, Dizayn Poligraf Servis LLC, 2001 (in Russian).

14. Gorbatikov V. A., Palyanov A. P. Modernization of FPM systems, Neftyanoye khozyaystvo. Moscow, 2000, no. 10, pp. 82—83 (in Russian).

15. Carlos A. Roscha, C. Stanley McCool, Stephen J. Randtke, Lanny G. Schoeling, M. Sophocleous. The use of gelled polymer technology for the containment groundwater, available at: http://info.ngwa.org/gwol/pdf/890149595.PDF.

16. Ilyasov B. G., Shangin E. S., Tagirova K. F., Taneyev A. R. System for automatic control of oil production from marginal wells, Neftepromyslovoye delo, 2004, no 8, pp. 28—32 (in Russian).

17. Demakhin S. A., Demakhin A. G. Selective methods for isolating water inflow into oil wells, Saratov, College Publishing House of the State Ural Science Center, 2003, 164 p. (in Russian).

18. Alvarado V., Manrique E. Enhanced oil recovery: an update review, Energies, 2010, no. 3, pp. 1529—1575.

19. Gurgel A., Moura M. C.P. A., Dantas T. N.C., Barros Neto E. L., Dantas Neto A. A. Review on chemical flooding methods applied in enhanced oil recovery, Brazilian Journal of Petroleum and Gas, 2008, no. 2, pp. 83—95.

20. Thomas S., Farouq Ali S. M. Status and Assessment of Chemical Oil Recovery Methods, Energy Sources, 1999, no. 21, pp. 177—189.

21. The use of colloidal systems to increase oil recovery / O. Yu. Sladovskaya, D. A. Kuryashov, A. I. Lakhova, R. R. Mingazov, I. F. Ismagilov, B. R. Vagapov, Bulletin of Kazan Technological University, 2010, no. 10, pp. 585—591 (in Russian).

22. Altunina L. Kuvshinov V. A., Stasyeva L. A. Progress in Mining and Oilfield Chemistry, 2000, vol. 2, Acad. Kiado, Budapest, р. 117.

23. Belov V. G., Ivanov V. A., Musayev Kh. T., Soloviev V. Y. Determining the optimal operational parameters of the oil reservoir-well-pump system, Neftyanoye Khozyaystvo, 2004, no. 7, pp. 100—102 (in Russian).

24. Andreev V. V., Urazakov K. R., Dalimov V. U. et al. Handbook of oil production, Moscow, Nedra-Biznestsentr LLC, 2000, 374 p. (in Russian).

25. Rzayev As. G. Oil production management in the late stage of field development, 19th International Scientific and Practical Conference: Scientific Review of Physical, Mathematical and Technical Sciences in the XXI Century Russia, Moscow, 24—25 July 2015, pp. 35—39 (in Russian).

26. Neiman L. R., Demirchiyan K. S. Theoretical foundations of electrical engineering: in 2 volumes. Vol. 1, Leningrad, Energoizdat, Leningrad edition, 1981, 536 p. (in Russian).