Feasibility study for shutting down high-water-cut wells in the Western Siberia oil fields

According to current rules established in 2019 for field development projects there is a need to shut down wells upon reaching at least one of the following indicators: the water cut reaches 98 %, the oil flow rate drops below 0,5 tons per day or gas factor reaches 2500 m3 per ton. These well shutdown criteria are the same for all fields. At the same time, upon closer examination of the issue, it should be noted that these well shutdown criteria must be specified for different geological conditions. Using the example of 25 fields of a major oil company in the Khanty-Mansi Autonomous Okrug-Yugra, a differentiation of the criteria for shutting down wells in highly watered well stock was made depending on the tax system and the level of company costs in comparison with the amount of mineral extraction tax. It is shown that highly productive production wells in the oil fields of Western Siberia can be profitably operated even after reaching a water cut of 98 %, maintaining high liquid flow rates. The approach to substantiating the marginal cost-effective technological indicators of well operation presented in this paper can be used for field development projects and to justifying the recovery factor for oil fields.

References

1. Yakunin I.A., Voronina A.I., On the number of samples to establish the current water cut of wells in the B1 formation of the Zhirnovskaya area (In Russ.), Neftepromyslovoye delo, 1972, No. 5, pp. 35–37.

2. Leybin E.L., Chervyakov N.N., Vysochinskiy A.S. et al., On the number of samples for determining the monthly water cut of production wells (In Russ.), Neftepromyslovoye delo, 1981, No. 10, pp. 15–17.

3. Yemel′yanov D.V., Khazigaleyev R.R., Sharipov I.F. et al., The impact of implementation of the flask-based water cut sampling method on the Samotlor field development (In Russ.), Neftyanoye khozyaystvo = Oil Industry, 2025, No. 11, pp. 26–30, DOI: https://doi.org/10.24887/0028-2448-2025-11-26-30

4. Asmandiyarov R.N., Kladov A.E., Lubnin A.A. et al., Automatic approach to field data analysis (In Russ.), Neftyanoye khozyaystvo = Oil Industry, 2011, No. 6, pp. 58–61

5. Serdyukov O.L., Optimizatsiya ucheta i otbora prob skvazhinnoy produktsii (Optimization of well production sampling and accounting), Proceedings of XV anniversary conference of young specialists working in organizations engaged in activities related to the use of subsoil sites in the Khanty-Mansi Autonomous Okrug – Yugra, Khanty-Mansiysk, 19–22 May 2015, Khanty-Mansiysk, 2015, pp. 197–200.

6. Belov V.G., Ivanov V.A., Solov′yev V.YA., Measurement of oil wells production watering (In Russ.), Neftyanoye khozyaystvo = Oil Industry, 2003, No. 4, pp. 111–113.

7. Chudin V.I., Anufriyev V.A., Shuvayeva L.A. et al., New solution to establish the content of water, oil and gas in well product (In Russ.), Neftyanoye khozyaystvo = Oil Industry, 2004, No. 1, pp. 86–88.

8. Shaydullin F.D., Nazmiyev I.M., Denislamov I.Z. et al., Improving the accuracy of water cut measurements in oil wells (In Russ.), Neftepromyslovoye delo, 2005, No. 5, pp. 29–31.

9. Bobylev O.A., Determination of wells watering at their periodic operation (In Russ.), Neftyanoye khozyaystvo = Oil Industry, 2005, No. 6, pp. 122–123.

10. Voronkov V.S., Galimov A.A., Samoylov D.YU. et al., Improvements in efficiency of water cut measurements for production wells (In Russ.), Neftyanoye

khozyaystvo = Oil Industry, 2020, No. 7, pp. 43–45, DOI: https://doi.org/10.24887/0028-2448-2020-7-43-45

11. Vlasov D.YU., Alekseyeva A.A., Syundyukov A.V. et al., Algorithm for automation of expert averaging of water cut in oil production (In Russ.), Neftyanoye

khozyaystvo = Oil Industry, 2024, No. 12, pp. 58–62, DOI: https://doi.org/10.24887/0028-2448-2024-12-58-63

12. Order of the Ministry of Natural Resources and Ecology of the Russian Federation No. 356 of June 14, 2016 (as amended by order No. 638 of September 20, 2019) “Ob utverzhdenii pravil razrabotki mestorozhdeniy uglevodorodnogo syr’ya” (On the approval of the rules for the development of hydrocarbon deposits),

URL: https://www.consultant.ru/document/cons_doc_LAW_334817/