Abstract

Reservoir Geomechanics deals with rock deformation/ compaction of reservoir rocks with associated fluid flow. Depending on the nature of reservoir there may be compaction or subsidence or fractures due to the geomechanics of the reservoir. In addition to the known fracture categories: natural fractures (tectonic stress) and artificially induced fractures (drilling), a third category can be classified as fractures induced due to depletion of the reservoir. Deformation greatly changes the rock properties which control permeability. Hence, for effective reservoir modeling and simulation it is necessary that a solution to rock deformation and associated fluid flow be incorporated in the modeling. The elements of geomechanics controlling permeability can also be studied from integrated analysis of Pwaves and S-waves (Poisson