SELECTIVE ACIDIZING OF A SUBTERRANEAN FORMATION
    1.
    发明申请
    SELECTIVE ACIDIZING OF A SUBTERRANEAN FORMATION 审中-公开
    选择性酸化地下水形成

    公开(公告)号:WO2015171140A1

    公开(公告)日:2015-11-12

    申请号:PCT/US2014/037184

    申请日:2014-05-07

    Abstract: Various embodiments disclosed relate to methods of acidizing subterranean formations and systems for performing the method. In various embodiments, the present invention provides a method of acidizing a subterranean formation including placing an acid-resisting treatment composition including a surface modification agent in a subterranean formation, such that part of the subterranean formation includes an at least partially acid-resistant coating including the acid-resisting treatment composition or a reaction product thereof. The method also includes placing an acidizing composition in the subterranean formation, wherein the acidizing composition at least one of etches and dissolves a part of the subterranean formation substantially free of the acid-resistant coating.

    Abstract translation: 所公开的各种实施例涉及酸化地下地层和用于执行该方法的系统的方法。 在各种实施方案中,本发明提供了一种使地下酸化酸化的方法,包括将包含表面改性剂的耐酸处理组合物放置在地层中,使得部分地下层包含至少部分耐酸的涂层,包括 耐酸处理组合物或其反应产物。 该方法还包括将酸化组合物置于地层中,其中酸化组合物中的至少一种蚀刻并溶解基本上不含耐酸性涂层的部分地下地层。

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