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Geomechanical analysis is performed at Gundih Field to obtain detail stress condition and mechanical properties from interval of interest. Ngrayong Formation is targeted as CO 2 injection interval of Gundih Field. The detail interval 8 is determined using multi-mineral modelling and calibrated using XRD and petrographic data. Overpressure is detected from this well at Ngrayong Formation. Stress direction from adjacent well showed NE – SW direction of maximum horizontal stress. Stress magnitudes and mechanical properties are calculated using available log data through well-established empirical equation resulted thrust faulting regime acting on this area. Injection capability of formation is examined from Mohr – Coulomb diagram with input from calculated stress. Keywords: Geomechanics; Gundih Field; Ngrayong Formation; Reservoir; overpressure .

GEOMECHANICAL STRESS PROFILE AT GUNDIH FIELD: STRESS QUANTIFICATION AND ANALYSIS IN RESERVOIR FOR CO2 INJECTION