Indoor Evaluation Research On Augmented Injection Technology Of High Concentration Polymer

According to the investigation actuality of the basic theory study on polymer flooding,surfactant solution decrease pressure of injection and increase ability of injection,this paper study polymer,permeability mechanics and enhance oli recovery,surfactant solution decrease pressure of injection and increase ability of injection.Base on result studied,high-concentration polymer flooding and surfactant solution decrease pressure of injection and increase ability of injection was studied at the same time.This research is for alkyl amine and epichlorohydrin as raw materials,with trimethylamine(or triethylamine)as quaternary ammonium reagent,synthesis and screening for high concentration polymer flooding in Daqing oil field oil step-down augmented injection technology,reached under the premise of without changing the existing polymer injection process,improve the efficiency of polymer flooding.For the smooth progress of polymer flooding large area,provide the corresponding supporting technology.The results of the study are significant to enrich the basic theory.study of relative fields and accelerate development of these subjects.