Investigation of Stress Arching Above Depleting Hydrocarbon Reservoirs and Its Effect on the Compaction Drive Mechanism

In this paper, the compression drive mechanism, which can be considered as most related oil mechanism with reservoir geomechanical properties, has been investigated. The constant total vertical stress on and uniaxial compaction zero lateral strain are two main assumptions in conventional modeling. These not considering arching, leads to a reduction also affects distribution of horizontal stresses. it was tried investigate effects three keys elastic parameters, including Young's modulus, Poisson’s ratio, Biot coefficient reservoirs paths using numerical modeling ABAQUS software. Based results is very different from simplifying assumption models while obtained model some cases equal. Also, among ratio modulus surrounding rocks significant effect compaction. indicate when rock softer than its environment, due arching occurrence, applied reduced even half initial stress, recovery by will less 50% predicted value.