Vol. 9 pp. 438-453

 E.N. Ivanov, A.V. Ufimtsev, A.V. Oshepkova, Y.S. Andreeva

THE USE OF A PACKER ARRANGEMENT TO ALIGN THE INFLOW PROFILE OF EXTENDED HORIZONTAL WELLS

 

Annotation. In the context of the development of the Botuobinsky gas and oil field (GNVZ) horizon of the Srednebotuobinsky oil and gas condensate field, one of the key problems is the growth of the gas factor (GF) due to the lack of reliable fluid seals between the gas cap and the oil rim, as well as uneven depression along the extended horizontal trunk. Using the example of a candidate well with localized gas inflow in the heel zone of a horizontal section, it is shown that traditional methods of limiting gas inflow do not solve the problem of uneven reserve production and lead to a reduction in the effective drainage length. The paper proposes a non–standard technology used at the SBNGKM for the first time - the use of a packer arrangement to align the depression profile along a horizontal trunk without completely isolating the interval. Two technical implementation options are considered: with a mechanical packer in the production column and with a cup packer in the shank. According to the results of hydrodynamic modeling, the implementation of the proposed layout makes it possible to shift the maximum depression point to the middle of the horizontal section, align the inflow profile, involve previously undrained reserves in development and ensure an increase in oil production by 9 tons/day while reducing the gas factor. The proposed technology is an effective tool for optimizing the inflow profile in conditions of a high gas factor, contributing to extending the life of cost-effective operation of horizontal wells and increasing the coefficient of hydrocarbon recovery.

Keywords: Srednebotuobinskoye field, Botuobinsky horizon, gas factor, horizontal shaft, gas and oil-producing zone, oil-saturated thickness, gas and oil-saturated thickness, packer.

 

For citation: Ivanov E.N., Ufimtsev A.V., Oshepkova A.V., Andreeva Y.S. [The use of a packer arrangement to align the inflow profile of extended horizontal wells] Upravlenie tekhnosferoi, 2026, vol. 9, issue 2, рр. 438–453. DOI: 10.35634/UdSU.2026.42.37.011. (In Russ.).

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About the Authors

Ivanov Evgeny Nikolaevich

Candidate of Technical Sciences, Associate Professor, Department of Oil and Gas Geology, Faculty of Geology, Irkutsk State University (ISU), 3 Lenin St., Irkutsk, 664011, Russia; Manager for Production Optimization and Waterflooding, Field Development Department, LLC "Taas-Yuryakh Neftegazodobycha", 291 Baikalskaya St., Irkutsk, 664050, Russia.

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Ufimtsev, Alexander Valerevich

Second-year Master’s Student, Faculty of Geology, Irkutsk State University (ISU), Program 05.04.01 (M) Geology, specialization “Petroleum and Gas Geology,” 3 Lenin St., Irkutsk, 664011, Russia;

Specialist, Field Development Department, Taas-Yuryakh Neftegazodobycha LLC, 291 Baikal’skaya St., Irkutsk, 664011, Russia.

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Oshepkova, Anastasia Vladimirovna

Candidate of Geological and Mineralogical Sciences, Associate Professor, Department of Mineral Resources, Geochemistry, Mineralogy, and Petrography, Faculty of Geology, Irkutsk State University (ISU), 3 Lenin St., Irkutsk, 664011, Russia.

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Andreeva Yuliya Sergeevna

Senior Lecturer at the Department of Oil and Gas Geology, Geological Faculty at Irkutsk State University (ISU), 664011 Irkutsk, Lenin St., 3. Russia.

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