Multi-Stage Methods and Compositions for Desensitizing Subterranean Formations Faces
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    发明申请
    Multi-Stage Methods and Compositions for Desensitizing Subterranean Formations Faces 审中-公开
    用于脱敏地下地层面的多阶段方法和组合

    公开(公告)号:US20120285690A1

    公开(公告)日:2012-11-15

    申请号:US13239491

    申请日:2011-09-22

    IPC分类号: E21B43/16

    摘要: A method of desensitizing a subterranean formation may include introducing a leading-edge fluid comprising a first base fluid and a first desensitizing agent into at least a portion of the subterranean formation, wherein the first desensitizing agent is present in the first base fluid at a first concentration; and then introducing a treatment fluid comprising a second base fluid and a second desensitizing agent into at least a portion of the subterranean formation, wherein the second desensitizing agent is present in the second base fluid at a second concentration, and wherein the first concentration is higher than the second concentration.

    摘要翻译: 使地下岩层脱敏的方法可以包括将包含第一基础流体和第一脱敏剂的前缘流体引入至地下地层的至少一部分中,其中第一脱敏剂在第一基础流体中以第一 浓度; 然后将包含第二基础流体和第二脱敏剂的处理流体引入所述地层的至少一部分,其中所述第二脱敏剂以第二浓度存在于所述第二基础流体中,并且其中所述第一浓度较高 比第二集中。