Analysis of Reservoir Seepage and Perforation Pipeline Coupling Under Stress

摘要

To realize full coupling simulating analysis of reservoir seepage and perforation pipeline, the numerical model of oil fluid-solid coupling is established under stress, with the application of porous medium mechanics and flow and solid coupling theory. On the basis of the hydrokinetics pipe flow theory, the flow in well and well bore is controlled by the Navier-Stokes equation. The established model is analyzed numerically with COMSOL Multiphysic, a multi-physical quantity coupling analyzing software. And four systems of partial differential equations are resolved with unity coupling. The study on simulation results shows that the pressure drop and strain are the biggest at the perforation. The rocks at the spot are easy to collapse. The simulation result proves that the established model and solution are effective.