Discussion of Chemical Water Shutoff During High Water Cut

This paper describes briefly five kinds of water plugging agents and seven kinds of profile controlling agents, which principles of chemical reaction and plugging, technical features, in-site formula, effectiveness and applicability are also introduced. The present research should focus on the fifness to the oil bearing formation in high water cut, improving the plugging agent properly and operation process, optimizing the design, accelerating the study on selective water plugging agent and seeking the synthetical techniques of water -shutoff with acidization or fracture.