This paper discusses the complex mechanism of water injection well plugging in oilfield,including incompatibility,crude oil precipitation and physical plugging.This paper introduces the principle and technical classification of chemical plugging removal technology,including the selection of plugging removal agent,action mechanism and applicable plugging types.The development direction of plugging and plugging removal technology for water injection wells in the future is prospected.
关键词
油田注水/化学解堵/提高采收率/地层污染
Key words
Oilfield water injection/Chemical plugging removal/Enhanced oil recovery/Formation pollution
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