Phase-field modeling of hydraulic fracture network propagation in poroelastic rocks

Phase-field modeling of a fluid-driven fracture in a poroelastic medium

Phase-field Modeling of Pressurized Fractures in a Poroelastic Medium

In this paper we present an incremental formulation of the phase field model for a fluid filled crack in a poroelastic medium. The mathematical model represents a linear elasticity system with fading elastic moduli as the crack grows that is coupled with an elliptic variational inequality for the phase field variable. The convex constraint of the variational inequality assures the irreversibili...

Field Measurement of Hydraulic Conductivity of Rocks

IS - Phase Field Modeling of Coupled Problems 3D phase-field for pressurized fracture propagation in heterogeneous media

This work presents recent progress in phase-field-based fracture modeling in heterogeneous porous media. Existing algorithms that have been developed in the last years are extended to tackle three-dimensional configurations. Our solution technique is formulated in terms of a nested Newton loop that combines a primal-dual active set method (required for treating the crack irreversibility) and a ...

Hydraulic fracture propagation: analytical solutions versus Lattice simulations

In this work, we used a grain-based numerical model based on the concept of lattice. The modelling was done to simulate the lab experiments carried out on the mortar samples. Also the analytical solutions corresponding to the viscosity-dominated regime were used to estimate the fracture length and width, and the results obtained were compared with the numerical simulations. As the analytical so...