Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
 Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
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IssuesArchive of Issues2022-8pp.1923-1935

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R.A. Bashmakov, N.O. Fokeeva, and V.Sh. Shagapov, "Some Features of Fluid Filtration in a Hydraulic Fracture under Transient Well Operation Conditions," Mech. Solids. 57 (8), 1923-1935 (2022)
Year 2022 Volume 57 Number 8 Pages 1923-1935
DOI 10.3103/S0025654422080040
Title Some Features of Fluid Filtration in a Hydraulic Fracture under Transient Well Operation Conditions
Author(s) R.A. Bashmakov (Mavlyutov Institute of Mechanics, Ufa Federal Research Center, Russian Academy of Sciences, Ufa, Russia; Bashkir State University, Ufa, Russia, Bashmakov_Rustem@mail.ru)
N.O. Fokeeva (Mavlyutov Institute of Mechanics, Ufa Federal Research Center, Russian Academy of Sciences, Ufa, Russia, ffoxnina@gmail.com)
V.Sh. Shagapov (Mavlyutov Institute of Mechanics, Ufa Federal Research Center, Russian Academy of Sciences, Ufa, Russia, Shagapov@rambler.ru)
Abstract In this paper, exact analytic solutions of the set of equations describing fluid filtration in formations subjected to hydraulic fracturing are obtained under transient well operation modes. The cases, when the bottom hole pressure or the well flow rate changes were considered, taking piecewise constant values. These solutions are generalized for the case when the bottom pressure and the flow rate versus time are continuous functions. The solution makes it possible to determine the flow rate or bottom hole pressure according to the given pressure change law in the bottom or well flow rate and, as well as pressure evolution in the hydraulic fracture. In special cases, for example, with a Π-shaped change in the flow rate law, the solutions obtained from comparison of the field flow rate curves and bottom hole pressure make it possible to determine the conductivity of a hydraulic fracture. Good agreement is demonstrated between the theoretical pressure change curves constructed from the flow rate change data and results of field observations.
Keywords hydraulic fracturing, hydraulic fracture, oil well, fluid filtration, pressure evolution, flow rate, well testing
Received 21 July 2022Revised 30 August 2022Accepted 30 August 2022
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