.... The calculated storage deformations are insignificant during the injection and depletion operations. Consequently, the stress changes in the overburden are relatively low. The analyses show that the caprock fails at injection pressures higher than 6MPa above the initial storage pressure. The results...

... Furui et al. (2012) presented numerical simulation results for stress changes in overburden and production intervals for a highly compacting sandstone reservoir using a 3D nonlinear FEM model. Their simulation results clearly indicate that lithological anomalies in the caprock interval play...

... recovery. However, many challenges exist in optimizing re-fracturing treatment designs, due to lack of accurate quantification of depletion-induced pressure and local stress changes around the fractures. We propose a workflow here to study and optimize re-fracturing job to increase reserves utilization...

... formation and the loss of casing support in the production interval, reservoir deformation/compaction, faulting from pore pressure changes (depletion or injection) and the corresponding stress changes. A field-specific geomechanical model was constructed using data acquired in four offset wells drilled...

... k o − σ ′ / b In the most dramatic cases it appears that b may be as low as 3 MPa thus indicating a change of one order of magnitude in permeability with 3 MPa effective stress change. This type of relationship is supported by core testing ( Somerton et al 1975 ). Field...