A SIMULATION STUDY ON THE EFFECT OF GEOMECHANICS ON THE PERFORMANCE OF THE RESERVOIR DURING WAG-CO2 INJECTION

omechanical studies have been escalating in these recent days. Depletion and injection environment apparently initiate the adjustment of stress and strain magnitude throughout the entire life of the reservoir. In recent years, many Enhanced Oil Recovery (EOR) process overlooked the geomechanical response around the reservoir. Moreover, uncertainties as well as financial risk are the problems occurred during EOR screening. By developing a thorough geomechanical examination together with careful evaluation of the rock mechanics response, any alteration on the performance of the reservoir will be studied at the end of the project. Enhanced Oil Recovery (EOR) scheme specifically during Water Alternating Gas (WAG) injection carries ambiguous effects on the state of the reservoir. These unclear stress and strain response during WAG-CO2 injection inclusive of thermal shock effects, hydraulic fracturing, fault reactivation and last but not least the dissolution effects of CO2.Ultimately, from the critical literature review analysis plus the technical understanding on the subject matter, it is expected for the performance of the reservoir to increase after running the one way coupling in order to investigate the effects of the enhanced oil recovery scheme on the reservoir rock mechanical properties.