| The theory of poroelasticity, which uses a linear elastic deformation model and the nucleus of strain theory to compute reservoir compaction and subsidence caused by pressure depletion in fluid producing reservoirs, has been extended to include linear viscoelastic deformation models using the correspondence principle. The extended model was coupled to a fluid flow model for a goepressured-geothermal reservoir.;involved. The developed fluid flow-deformation model was used to predict the pressure, compaction, and subsidence performances of Austin Bayou Geopressured-Geothermal prospect, Brazoria County, Texas.;A finite element approximation technique was used to reduce the resulting two second-order non-linear parabolic partial differential equations to a system of linearized simultaneous equations which were solved by a matrix solution technique. A stable finite element computer code, FNEL2D, was developed to perform the numerical computations... |
