Vol. 5 pp. 262-275

D.V. Kokshin, S.Yu. Borchovich

 

STUDY OF THE INFLUENCE OF HYDRAULIC FRACTURING ON OIL PRODUCTION INTENSIFICATION IN HORIZONTAL WELLS

 

Annotation. The using of multi-stage hydraulic fracturing (MSHF) technology in horizontal wells (HWs) makes it possible to cost-effectively develop reservoirs with low permeability. At the same time, the cost of construction and installation works for the implementation of this technology is much higher than the cost of conventional hydraulic fracturing (HF) in vertical wells. In this regard, at the design stage of multi-stage hydraulic fracturing, the question of choosing the optimal parameters is acute. The purpose of this work is to optimize the technological parameters of multi-stage hydraulic fracturing in relation to the Podol-Kashiro-Vereisky development object of the Elnikovskoye field. The study was carried out by the method of mathematical and hydrodynamic modeling of the main parameters of the fluid inflow. According to the results of the study, for the conditions of the Elnikovskoye field, it was revealed that conducting more than 6 MHF fractures is irrational, the optimal length of the HW should be no more than 800 m. Improved criteria for selecting candidate wells are proposed. Dependences were also established: well flow rate on the distance of the frac; time to bring the HW to steady state after hydraulic fracturing from formation pressure. The substantiation of these criteria was carried out in the FlexPDE software.

Keywords: multi-stage hydraulic fracturing, HW, efficiency, frac, reservoir pressure, optimization, well flow rate.

 

For citation: Kokshin D.V., Borchovich S.Yu. [Study of the influence of hydraulic fracturing on oil production intensification in horizontal wells] Upravlenie tekhnosferoi, 2022, vol. 5, issue 2. (In Russ.) Available at: https://technosphere-ing.ru/ рр. 262–275. DOI: 10.34828/UdSU.2022.26.24.011

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About the Authors

 

Kokshin Danil Vadimovich

2nd year master's student, Institute of Oil and Gas named after M.S. Gutseriev, Federal State Budgetary Educational Institution of Higher Education "Udmurt State University", 426034 Universitetskaya str., 1/7. Izhevsk, Russia.

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Borkhovich Sergey Yurievich

Candidate of Technical Sciences, Associate Professor, Head of the Department of Development and Operation of Oil and Gas Fields, Institute of Oil and Gas named after M.S. Gutseriev, Federal State Budgetary Educational Institution of Higher Education "Udmurt State University", 426034 Universitetskaya str., 1. Izhevsk, Russia.

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