Abstract
Numerical modeling results are presented for propagating an axially symmetric crack formed due to hydraulic fracturing near the free surface in the isotropic poroelastic medium. The extended finite element method based on phantom nodes and cohesive model of material failure was used to solve this problem. Trajectories of the crack growth are calculated for different distances from the free surface under injection of certain volume of working fluid with regard to its leakage. The influence exerted by impermeable boundary on the hydraulic fracturing propagation is studied.
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The work was supported by the Russian Foundation for Basic Research and the Government of Novosibirsk Region, project no. 17-45-540686 p_a.
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Russian Text © The Author(s), 2019, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2019, No. 1, pp. 3–11.
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Azarov, A.V., Kurlenya, M.V., Serdyukov, S.V. et al. Features of Hydraulic Fracturing Propagation near Free Surface in Isotropic Poroelastic Medium. J Min Sci 55, 1–8 (2019). https://doi.org/10.1134/S1062739119015216
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DOI: https://doi.org/10.1134/S1062739119015216