Abstract：Oilfield waterflood development is widely used approach.Currently,the worldwide oil production acquired by waterflooding approach occupied a large proportion.Because of influence of various geologic and human-factors during oilfield waterflood development,the pollution and mechanic plugging in oil-bearing strata often are formed in near-well and far-well zones of a part of waterflood oil production wells,resulting in decreasing permeability and then bringing bad results to normal production: low efficient recovery in oil wells,decreasing water-injection rate in water injection wells and deteriorated development effects.Using pressure build-up test and Шуровcurve and by decomposition of skin coefficient to establish the main type of pollution in oil-bearing strata,meanwhile,further analyzing the genesis of pollution for the skin effect caused by S3 and presenting associated countermeasures such as acidulation,fracture and reperforating etc,which play an important role in improving the permeability of reservoir.
李晓良, 刘文涛, 张家良, 王学力. 大港油田南部油区储层伤害及治理[J]. 石油地球物理勘探, 2006, 41(S1): 109-114.
Li Xiao-liang, Liu Wen-tao, Zhang Jia-liang, Wang Xue-li. Damage and harness of reservoirs of southern oil pools in Dagang oilfield. OGP, 2006, 41(S1): 109-114.
