A scalable collocated finite volume scheme for simulation of induced fault slip

• DOI: 10.1016/j.jcp.2022.111598
• Publication Date: 2022-09-01T15:04:49Z
• Authors: Aleksei Novikov; Denis Voskov; Mark Khait; Hadi Hajibeygi; Jan Dirk Jansen
• Keywords: Geomechanics; Benchmark (surveying)

We present a scalable collocated Finite Volume Method (FVM) to simulate induced seismicity as result of pore pressure changes. A discrete system is obtained based on fully-implicit fully-coupled description flow, elastic deformation, and contact mechanics at fault surfaces flexible unstructured mesh. The cell-centered scheme leads convenient integration the different physical equations, unknowns share same locations Additionally, generic multi-point flux approximation formulated treat heterogeneity, anisotropy, cross-derivative terms for both flow equations. resulting system, though accurate, can lead excessive computational costs field-relevant applications. To resolve this limitation, processing algorithm developed presented. Several proof-of-concept numerical tests, including benchmark studies with analytical solutions, are investigated. It found that presented method indeed accurate efficient; provides promising framework efficient simulation in various geoscientific