Laboratory Research on Yield Increasing Mechanism and Influence Factors of Advanced Water Injection

The influence of the pressure-sensitive effect was studied through indoor physical simulation method based on nonlinear seepage law of low permeability reservoir.A low permeability reservoir was chosen as the reservoir model,BOAST-NFR For Excel was adopted as the mathematical model and IMPES was used as the algorithm.Advanced production mechanism of water injection,establishment of the effective displacement pressure system,injection timing and influence factors of artificial fracture were studied.