The Harmful Research On Reservoirs And Evaluation Of No Flowback Acidizing Formulations In Ding Bian Oil Production Plant

Oilfield acidizing measures currently exist some problems that resulting acidification job fails or is not satisfied.This paper expound the secondary sedimentation problems in the oilfield acidizing without flowback through the research and analysis of secondary sedimentation in acidizing process and the investigation of the oil sampling and analysis of produced water.Meantime,through the investigation of acidified preparation water and the situation of pipeline scaling to know the problems.Base on that,designing an evaluation method of secondary sedimentation and insolubles.Combined with previous studies,we selecting series acid formulation for the group of YanChang and Yanan.The design of acidizing formulations was simulated by experiment indoor.The result show that that the formula could meet the needs of the oilfield acidizing without flowback in DingBian Oilfield.