For the purpose of balancing pressure and stabilizing formation,better isolating drilling fluid and slurry,improving replacing ratio,the DG high temperature resistant spacer was developed and used.
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释义
为平衡压力,压稳地层,更好地隔离钻井液和水泥浆,提高顶替效率,设计采用DG抗高温隔离液。
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