SANGRE: A Finite Element Code for Fluid Migration, Heat Transport, and Faulting in Highly Deformable, Porous Geological Media

摘要

This report describes the SANGRE finite element code and its application to the thermomechanical analysis of two-dimensional problems in structural geology. The theory behind the code is presented along with the unusual capabilities of the code that allow for analysis of realistic problems in structural geology including the material models, the model for fluid behavior, and the large-deformation and slide line capabilities. Five benchmark problems are presented, including analysis of an overthrust model with consideration of pore pressure effects, and comparisons of SANGRE predictions are made with previous numerical, analytical, and laboratory results. Input instructions for SANGRE are described in the report. 22 refs., 35 figs. (ERA citation 12:005672)