Lawrence Berkeley National Laboratory
Modeling Three-Dimensional Fluid-Driven Propagation of Multiple Fractures using TOUGH-FEMM
- Author(s): Tang, X
- Rutqvist, J
- Hu, M
- Rayudu, NM
- et al.
Published Web Locationhttps://doi.org/10.1007/s00603-018-1715-7
© 2019, Springer-Verlag GmbH Austria, part of Springer Nature. In this paper, a new numerical simulation tool named TOUGH-FEMM is presented and applied to model three-dimensional (3D) hydraulic fracturing in porous rock. The fluid flow in both fractures and porous rock is modeled using TOUGH2, which is a well-established code for analysis of multiphase and multi-component fluid flow. Rock deformations associated with fracture propagation are modeled using finite element-meshfree method (FEMM). FEMM is an approach to simulate fracture propagation without remeshing, in which the fracture path does not need to be predetermined. Fracture mechanics with mixed-mode stress intensity factors are employed to detect fracture instability and determine the direction of fracture propagation. TOUGH-FEMM is verified for modeling fluid-driven fracture propagation in 3D through a number of simulation examples, including modeling of hydraulic fracturing laboratory experiments and by comparison to independent numerical simulation results for multiple interacting hydraulic fractures at ten to hundred meter scale.