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    Stable organic-based fluid loss additive containing an organophilic clay-based suspending agent for use in a well
    2.
    发明授权
    Stable organic-based fluid loss additive containing an organophilic clay-based suspending agent for use in a well 有权
    稳定的基于有机基的流体损失添加剂，其含有用于井中的亲有机质的粘土基悬浮剂

    公开(公告)号：US08877692B2

    公开(公告)日：2014-11-04

    申请号：US13458717

    申请日：2012-04-27

    申请人： Abhijit Tarafdar ,  Remitha Ak

    发明人： Abhijit Tarafdar ,  Remitha Ak

    IPC分类号： C09K8/02 ,  C09K8/03 ,  C04B28/02 ,  C09K8/467 ,  C09K8/487 ,  C09K8/502 ,  C04B103/00 ,  C04B103/46

    CPC分类号： C09K8/03 ,  C04B28/02 ,  C04B2103/0035 ,  C04B2103/0036 ,  C04B2103/46 ,  C09K8/467 ,  C09K8/487 ,  C09K8/502 ,  C04B14/10 ,  C04B24/38 ,  C04B24/2641 ,  C04B24/2652 ,  C04B24/2664 ,  C04B24/383 ,  C04B2103/0049 ,  C04B2103/0082

    摘要： A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid: (A) comprises the continuous phase of the well treatment composition; and (B) comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive: (A) is insoluble in the organic liquid; and (B) comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.

    摘要翻译： 井处理组合物包括：水溶性有机液体，其中有机液体：（A）包括井处理组合物的连续相; 和（B）包含聚二醇或聚二醇的衍生物; 流体丢失添加剂，其中所述流体损失添加剂：（A）不溶于有机液体; 和（B）包含高分子量的水溶胀性聚合物; 和悬浮剂，其中所述悬浮剂包含有机粘土，其中所述井处理组合物具有至少15％的活性。 一种在地层中固井的方法包括：将水泥组合物引入到地下地层中，所述水泥组合物包括：（i）水泥; （ii）水; 和（iii）井处理组合物; 并且允许水泥组合物在引入地层之后固化。

    STABLE ORGANIC-BASED FLUID LOSS ADDITIVE CONTAINING AN ORGANOPHILIC CLAY-BASED SUSPENDING AGENT FOR USE IN A WELL
    5.
    发明申请
    STABLE ORGANIC-BASED FLUID LOSS ADDITIVE CONTAINING AN ORGANOPHILIC CLAY-BASED SUSPENDING AGENT FOR USE IN A WELL 有权
    含有机碱性悬浮剂的稳定有机基润滑剂含有有机粘土基悬浮剂

    公开(公告)号：US20120210911A1

    公开(公告)日：2012-08-23

    申请号：US13458717

    申请日：2012-04-27

    申请人： Abhijit TARAFDAR ,  Remitha AK

    发明人： Abhijit TARAFDAR ,  Remitha AK

    IPC分类号： C04B24/10 ,  C04B24/26 ,  C04B24/38 ,  C09K8/02

    CPC分类号： C09K8/03 ,  C04B28/02 ,  C04B2103/0035 ,  C04B2103/0036 ,  C04B2103/46 ,  C09K8/467 ,  C09K8/487 ,  C09K8/502 ,  C04B14/10 ,  C04B24/38 ,  C04B24/2641 ,  C04B24/2652 ,  C04B24/2664 ,  C04B24/383 ,  C04B2103/0049 ,  C04B2103/0082

    摘要： A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid: (A) comprises the continuous phase of the well treatment composition; and (B) comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive: (A) is insoluble in the organic liquid; and (B) comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.

    摘要翻译： 井处理组合物包括：水溶性有机液体，其中有机液体：（A）包括井处理组合物的连续相; 和（B）包含聚二醇或聚二醇的衍生物; 流体丢失添加剂，其中所述流体损失添加剂：（A）不溶于有机液体; 和（B）包含高分子量的水溶胀性聚合物; 和悬浮剂，其中所述悬浮剂包含有机粘土，其中所述井处理组合物具有至少15％的活性。 一种在地层中固井的方法包括：将水泥组合物引入到地下地层中，所述水泥组合物包括：（i）水泥; （ii）水; 和（iii）井处理组合物; 并且允许水泥组合物在引入地层之后固化。

    Cement Composition for Use with a Formate-Based Drilling Fluid Comprising an Alkaline Buffering Agent
    7.
    发明申请
    Cement Composition for Use with a Formate-Based Drilling Fluid Comprising an Alkaline Buffering Agent 有权
    用于包含碱性缓冲剂的甲酸基钻井液的水泥组合物

    公开(公告)号：US20060169175A1

    公开(公告)日：2006-08-03

    申请号：US11279361

    申请日：2006-04-11

    申请人： Gunnar Lende

    发明人： Gunnar Lende

    IPC分类号： C04B28/00 ,  C04B28/06 ,  C04B24/08 ,  C04B28/04

    CPC分类号： C09K8/467 ,  C04B28/02 ,  C04B2103/0035 ,  Y02W30/94 ,  C04B18/146 ,  C04B22/062 ,  C04B22/10 ,  C04B22/124 ,  C04B2103/20 ,  C04B2103/46 ,  C04B24/16 ,  C04B24/18

    摘要： A cement slurry comprising a base for reducing the impact of an alkaline solution may be displaced into a wellbore and allowed to set. The base may comprise a metal carbonate that is soluble in water such as potassium carbonate. The cement slurry may further include cement, water, and a salt that is soluble in the water such as potassium chloride. The alkaline solution may be present in a formate-based drilling fluid displaced into the wellbore ahead of the cement slurry. Despite being contacted by such an alkaline solution, the thickening time of the cement slurry is long enough and the set time is short enough to provide for the formation of an impermeable mass in the annulus of the wellbore. The thickening times may range from about 4 hours to about 16 hours, and the set times may be less than about 24 hours.

    摘要翻译： 包含用于减少碱性溶液的冲击的碱的水泥浆料可以被置换成井眼并允许凝固。 碱可以包含可溶于水的金属碳酸盐，例如碳酸钾。 水泥浆还可包括水泥，水和可溶于水的盐如氯化钾。 碱性溶液可以存在于位于水泥浆前面的井眼中的基于甲酸盐的钻井液中。 尽管被这种碱性溶液接触，但是水泥浆的增稠时间足够长，并且凝固时间足够短以便在井眼的环空中形成不可渗透的物质。 增稠时间可以在约4小时至约16小时的范围内，并且凝固时间可以小于约24小时。