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    Methods of consolidating formations or forming chemical casing or both while drilling
    8.
    发明授权
    Methods of consolidating formations or forming chemical casing or both while drilling 失效
    在钻孔时整合地层或形成化学套管或两者的方法

    公开(公告)号：US06702044B2

    公开(公告)日：2004-03-09

    申请号：US10170400

    申请日：2002-06-13

    申请人： B. Raghava Reddy ,  Larry S. Eoff ,  Donald L. Whitfill ,  J. Michael Wilson ,  Denise Berryhill ,  Russel M. Fitzgerald ,  Thomas E. Becker ,  Jimmie D. Weaver

    发明人： B. Raghava Reddy ,  Larry S. Eoff ,  Donald L. Whitfill ,  J. Michael Wilson ,  Denise Berryhill ,  Russel M. Fitzgerald ,  Thomas E. Becker ,  Jimmie D. Weaver

    IPC分类号： E21B2100

    CPC分类号： C09K8/12 ,  C09K8/24 ,  C09K8/508 ,  C09K8/512 ,  C09K8/5751 ,  Y10S507/903

    摘要： Methods of consolidating formations or forming chemical casing or both while drilling are provided. One method of the invention comprises drilling a well bore with a drilling fluid comprised of water, a polymeric cationic catalyst which is adsorbed on weak zones or formations formed of unconsolidated clays, shale, sand stone and the like, a water soluble or dispersible polymer which is cross-linked by a thermoset resin and causes the resin to be hard and tough when cured, a particulate curable solid thermoset resin, a water soluble thermoset resin, and a delayed dispersible acid catalyst for curing the solid and water soluble resins. The drilling fluid forms a filter cake on the walls of the well bore that cures and consolidates the unconsolidated weak zones and formations penetrated by the well bore so that sloughing is prevented and forms a hard and tough cross-linked chemical casing on the walls of the well bore.

    摘要翻译： 提供了在钻孔时固结地层或形成化学套管或两者的方法。 本发明的一种方法包括用包括水的钻井液钻井井，吸附在由非固结粘土，页岩，砂石等形成的弱区或地层上的聚合阳离子催化剂，水溶性或分散性聚合物， 通过热固性树脂交联并使树脂在固化时硬而坚韧，颗粒固化固体热固性树脂，水溶性热固性树脂和用于固化和水溶性树脂的延迟分散酸催化剂。 钻井液在井眼的壁上形成滤饼，其固化和固结由井眼穿透的未固结的弱区和结构，从而防止脱落并形成硬的和坚韧的交联化学壳体 井眼。

    Methods of consolidating formations and forming a chemical casing
    10.
    发明授权
    Methods of consolidating formations and forming a chemical casing 失效
    巩固地层和形成化学外壳的方法

    公开(公告)号：US06823940B2

    公开(公告)日：2004-11-30

    申请号：US10716726

    申请日：2003-11-19

    申请人： B. Raghava Reddy ,  Larry S. Eoff ,  Donald L. Whitfill ,  J. Michael Wilson ,  Denise Berryhill ,  Russel M. Fitzgerald ,  Thomas E. Becker ,  Jimmie D. Weaver

    发明人： B. Raghava Reddy ,  Larry S. Eoff ,  Donald L. Whitfill ,  J. Michael Wilson ,  Denise Berryhill ,  Russel M. Fitzgerald ,  Thomas E. Becker ,  Jimmie D. Weaver

    IPC分类号： E21B33138

    CPC分类号： C09K8/12 ,  C09K8/24 ,  C09K8/508 ,  C09K8/512 ,  C09K8/5751 ,  Y10S507/903

    摘要： Methods of consolidating unconsolidated weak zones or formations and forming chemical casings include drilling a well bore with a drilling fluid having a pH in the range of from about 6 to 10 and that comprises water, a polymeric cationic catalyst which is adsorbed on the mineral surfaces in the weak zone, a particulate curable solid thermoset resin and a delay acid catalyst for curing the solid resin, and forming a filter cake on the walls of the well bore. The filter cake is then contacted with a treating fluid comprising a water soluble or water dispersible polymer which is capable of being cross-linked by a thermoset resin and causing the resin to be hard and tough when cured, and a water soluble or dispersible thermoset resin, whereby the treating fluid components deposit on the filter cake and the thermoset resin cures into a hard and tough cross-linked chemical casing thereon.

    摘要翻译： 固结未固结的弱区或结构并形成化学壳体的方法包括用具有约6至10范围内的pH的钻井液钻井孔，并且包括水，吸附在矿物表面上的聚合阳离子催化剂 弱区，可固化固体的固体热固性树脂和用于固化固体树脂的延迟酸催化剂，以及在孔的壁上形成滤饼。 然后将滤饼与包含水溶性或水分散性聚合物的处理流体接触，所述聚合物能够通过热固性树脂交联并使树脂在固化时硬而坚韧，并且水溶性或分散性热固性树脂 ，由此处理流体组分沉积在滤饼上，并且热固性树脂固化成其上坚硬且韧性的交联化学外壳。