Simulation of Sand Production with A Coupled Seepage-Deformation-Damage Model

The deformation of the oil sand matrix is an important issue given that in situ and well pumping induced stresses impact on the susceptibility of the oil reservoir to produce sand. Focusing on this problem, a fully coupled seepage-deformation-damage model is developed to simulate the enhanced sand production phenomena. Finite element method with explicit and sequential iterative algorithm is used to solve the coupled governing equation system. Simulation results relating perforation cavity propagation, sand production rate and cumulative sand production are presented. The study suggests that the proposed model may be used to generate quantitative information for predicting sand production and optimizing pressure drawdown.