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发明公开
CN104789195A 仿生页岩抑制剂及其制备方法和钻井液及其应用 有权

仿生页岩抑制剂及其制备方法和钻井液及其应用
摘要：
本发明公开了一种仿生页岩抑制剂，该仿生页岩抑制剂由式(1)所示的结构单元和式(2)所示的结构单元构成，其中，式(1)所示的结构单元和式(2)所示的结构单元的摩尔比为0.2-6：1；所述页岩抑制剂的重均分子量为800-4000g/mol。本发明还提供了一种仿生页岩抑制剂的制备方法，以及由该方法制得的仿生页岩抑制剂。本发明还提供含有上述仿生页岩抑制剂的钻井液及其应用。本发明的仿生页岩抑制剂对页岩抑制性能高且环保无污染。
摘要（英）：

The invention discloses a bionic shale inhibitor, comprising a structure unit shown in formula (1) and a structure unit shown in formula (2), the molar ratio of the structure unit shown in the formula (1) to the structure unit shown in the formula (2) is 0.26:1; and the shale inhibitor weight-average molecular weight is 800-4000g / mol. The invention also provides a preparation method of the bionic shale inhibitor, and the bionic shale inhibitor prepared by the method. The invention also provides a drilling fluid containing the bionic shale inhibitor and application thereof. The bionic shale inhibitor has high shale inhibition performance, environmental friendliness and no pollution.

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