Study On Experiment Of Dissolving The Filth About ASP

ASP is technique which is composed of alkali,surface acting agent and polymer.Compared to polymer flooding,ASP enhance oil recovery by expanding swept volume.ASPflooding technology has made a breakthrough in Daqing Oil Field Company.Worked five fieldexperiment in a different network of wells,well spacing, the different nature of thereservoir,The results showed that ASP can improve20%recovery ratio thanwaterflooding.But scaling phenomenon is also very serious in water flooding regime andimmediate vicinity of wellbore,oil well fouling has seriously affected the normal production.Especially in No.4Oil Production Company, Clear fouling agent of the ordinary acid systemcan not dissolve encrustation of ASP. Therefore, it is great significance to dissolve scalesystem for ASP in No.4Oil Production Company.This paper research feature of physical property in ASP reservoir, and mineral chemicalcomposition of mineral in container rock，preliminary study scaling mechanism about ASP inNo.4Oil Production Company，research a new type of scale dissolver which is chelatingagent to the main and addition agent to the auxiliary in futher.It can effectively dissolve theASP flooding oil well fouling in No.4Oil Production Company.