Research progress on the law of wateflooding front migration in low-permeability tight reservoirs
The characteristics of tight reservoirs,strong heterogeneity and fracture develop-ment on low-permeability tight reservoirs lead to the fingerlike advancement of waterflooding front,poor waterflooding swept volume and low waterflooding recovery.In order to solve this problem,controlling the speed of water drive leading edge movement and fully leveraging the dual effects of infiltration and displacement is the direction to improve development efficien-cy and achieve stable oil and water control.In order to further explore the basic theoretical research of this technology,through investigating literature,this paper analyzes the influenc-ing factors of the migration law of waterflooding front in the process of water injection devel-opment.Summarizes the indoor physical simulation method and mathematical model analysis method at home and abroad.Introduces the application status of waterflooding front monitor-ing technology,and several key technical problems to be solved in the combination of water-flooding front research and field application are discussed.