Simulation of Filtration into a Well Taking into Account of Elastoplastic Deformation Near Borehole

The paper presents the results of the modeling of filtration into a well taking into account of elastoplastic deformation near borehole. The Drucker-Prager model was chosen to describe the transition to inelastic deformation. The parameters of the model, and the dependence of the permeability of rocks on stresses have been found experimentally for the conditions of one of the offshore gas condensate fields with a low-permeability reservoir. The experiments were carried out on a unique experimental setup—the Triaxial Independent Load Test System of IPMech RAS. It have been shown the model makes it possible to determine the optimal manner of well stimulation to increase the well production rate by varying the pressure drawdown value and the bottomhole design.