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    • 4. 发明申请
    • CURABLE COMPOSITION FOR USE AS LOST CIRCULATION MATERIAL
    • 可固化组合物用作失效循环材料
    • WO2012154473A1
    • 2012-11-15
    • PCT/US2012/036213
    • 2012-05-03
    • DOW GLOBAL TECHNOLOGIES LLCATHEY, Phillip S.OBI, Bernard E.POINDEXTER, Michael K.
    • ATHEY, Phillip S.OBI, Bernard E.POINDEXTER, Michael K.
    • C09K8/035C08G18/00C09K8/508
    • C09K8/035C08G18/672C09D175/16C09K8/5086C08G18/48
    • The present invention relates to compositions and methods for reducing or preventing the loss of drilling fluids and other well servicing fluids into a subterranean formation during drilling or construction of boreholes in said formation. Specifically, this invention comprises a curable composition capable of free radical polymerization for creating lost circulation material in-situ. The curable composition comprises an organic compound capable of free radical (co)polymerization represented by the formula (I) : wherein x is an integer from 1 to 8; Fp comprises one or more moiety comprising a free radical polymerizable group; L is an organic moiety comprising a (substituted) aromatic or (substituted) aliphatic group comprising one or more O, N, S, or combinations thereof; and Q comprises a substituted or unsubstituted mono- or polyvalent organic radical comprising one or one or more moiety selected from alkyl, alkylene, alkenyl, cycloalkyl, cycloalkylene, aryl, aralkyl, alkaryl, poly(oxyalkylene), poly(carboalkoxyalkylene), a substituted heterocyclic radical, or an unsubstituted heterocyclic radical.
    • 本发明涉及用于减少或防止在所述地层钻孔或构造井眼期间钻井液和其它维修良好的流体进入地下地层的组合物和方法。 具体地说,本发明包括一种可自由基聚合的可固化组合物,用于原位产生流失物质。 可固化组合物包含能够由式(I)表示的自由基(共)聚合的有机化合物:其中x是1至8的整数; Fp包含一个或多个包含自由基可聚合基团的部分; L是包含(取代的)芳族或(取代的)脂族基团的有机部分,其包含一个或多个O,N,S或其组合; 和Q包括取代或未取代的单价或多价有机基团,其包含一个或一个或多个选自烷基,亚烷基,烯基,环烷基,亚环烷基,芳基,芳烷基,烷芳基,聚(氧亚烷基),聚(碳烷氧基亚烷基) 杂环基或未取代的杂环基。