Abstract
In this paper we describe self-consistent mathematical model for large scale hydraulic fracture development in poroelastic medium is proposed together with appropriate simulation techniques. The model includes Biot poroelasticity equations, fracture fluid flow model based in Reynolds lubrication equation, criteria for fracture development based on vector valued form of Rice-Cherepanov J-integral and bulk/fracture coupling conditions defined at fracture mid-surface. The proposed numerical algorithms is a new variant of the widely used eXtended Finite element (X-FEM) method which utilize closest-point projection technique for both fracture geometrical representation and fracture flow solver. A robust and efficient algorithm is proposed based on direct evolution of closest point projector. Numerical results which illustrate the developed numerical techniques are presented.
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This research was supported by Russian Science Foundation, project No. 15-11-00021.
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Borisov, V., Ivanov, A., Ramazanov, M., Savenkov, E.B. (2019). Poroelastic Hydraulic Fracture Simulation Using X-FEM/CPP Approach. In: Karev, V., Klimov, D., Pokazeev, K. (eds) Physical and Mathematical Modeling of Earth and Environment Processes (2018). Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-11533-3_32
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DOI: https://doi.org/10.1007/978-3-030-11533-3_32
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