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Laboratory Evaluation of Injectability in Injecting Water Well by Using the Oil-based Mud
Author(s): 
Pages: 20-21
Year: Issue:  4
Journal: PETROLEUM GEOLOGY & OILFIELD DEVELOPMENT IN DAQING

Keyword:  油基钻井液注水配伍性渗透率恢复值;
Abstract: 针对现场油基钻井液所钻井出油少、注水困难等问题,评价了油基钻井液滤液、完井液、水泥浆、注入水、地层水间的配伍性,以及油基钻井液滤液、原油对岩心动静污染后吸水能力的影响.实验结果表明:油基钻井液滤液与水泥浆、完井液、注入水、地层水存在一定的乳化作用;水泥浆与完井液、注入水、地层水不配伍,有沉淀生成;油基钻井液、原油动静污染后岩心注水能力下降,改性注入水能有效提高油基钻井液静污染后岩心吸水能力.
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