Well completion spacer fluids containing fibers
    1.
    发明申请
    Well completion spacer fluids containing fibers 审中-公开
    完井隔离液含纤维

    公开(公告)号:US20060258545A1

    公开(公告)日:2006-11-16

    申请号:US11489320

    申请日:2006-07-19

    IPC分类号: C09K8/40

    摘要: Well completion spacer fluids containing fibers and methods of using the spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second fluid comprises the following steps. A spacer fluid is placed between the first and second fluids to separate the first and second fluids and to remove the first fluid from the walls of the well bore. Thereafter, the first fluid and the spacer fluid are displaced from the well bore with the second fluid. The spacer fluid comprises water, a weighting material, a dispersing agent, a suspending agent and friction reducer and fibers. The spacer fluid containing the components mentioned above is preferably also foamed.

    摘要翻译: 提供了含有纤维的完井间隔液和使用间隔液的方法。 本发明的用不相容的第二流体从井眼移位第一流体的方法包括以下步骤。 间隔流体被放置在第一和第二流体之间以分离第一和第二流体并从井眼的壁移除第一流体。 此后,第一流体和间隔流体与第二流体从井眼位移。 间隔液包括水,加重材料,分散剂,悬浮剂和摩擦减摩剂和纤维。 含有上述组分的间隔液优选也发泡。

    Foamed cement compositions, additives, and associated methods
    4.
    发明申请
    Foamed cement compositions, additives, and associated methods 有权
    发泡水泥组合物,添加剂和相关方法

    公开(公告)号:US20060016602A1

    公开(公告)日:2006-01-26

    申请号:US11132803

    申请日:2005-05-19

    IPC分类号: E21B33/13 C04B24/12 C04B24/16

    摘要: The present invention relates to cementing operations and, more particularly, to foamed cement compositions, foaming and stabilizing additives, and associated methods. A foaming and stabilizing additive, that comprises a mixture of an alkali salt of an alkyl ether sulfate surfactant, wherein the alkali salt of the alkyl ether sulfate surfactant comprises a mixture of an alkali salt of a C6-10 alkyl ether sulfate surfactant, and an alkali salt of a C2-4 alkyl ether sulfate surfactant, an alkyl or alkene amidopropyl betaine surfactant, an alkyl or alkene amidopropyl dimethylamine oxide surfactant, sodium chloride, and water, is provided. Also provided are foamed cement compositions that comprise the foaming and stabilizing additive, and associated methods.

    摘要翻译: 本发明涉及胶结作业,更特别涉及发泡水泥组合物,发泡和稳定添加剂以及相关方法。 一种发泡稳定添加剂,其包含烷基醚硫酸盐表面活性剂的碱金属盐的混合物,其中烷基醚硫酸盐表面活性剂的碱金属盐包括C 6〜10的碱金属盐的混合物 烷基醚硫酸盐表面活性剂和C 2-4烷基醚硫酸盐表面活性剂的碱金属盐,烷基或烯烃酰氨基丙基甜菜碱表面活性剂,烷基或烯烃酰氨基丙基二甲基氧化胺表面活性剂,氯化钠和水 ,被提供。 还提供了包含发泡和稳定添加剂的发泡水泥组合物以及相关方法。

    Method of using humic acid grafted fluid loss control additives in cementing operations
    5.
    发明授权
    Method of using humic acid grafted fluid loss control additives in cementing operations 有权
    在固井作业中使用腐殖酸接枝失水控制添加剂的方法

    公开(公告)号:US07523784B2

    公开(公告)日:2009-04-28

    申请号:US11652215

    申请日:2007-01-11

    IPC分类号: E21B33/13

    摘要: Exemplary embodiments of the cement compositions comprise water, a cement, and a fluid loss control additive, the fluid loss control additive comprising a graft copolymer. The graft copolymer comprises a backbone and at least four grafted monomers selected from the group consisting of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid, vinylphosphonic acid, diallyldimethylammonium chloride, and salts thereof. The backbone of the graft copolymer comprises a humic acid salt. Methods of cementing using exemplary embodiments of the cement compositions are also provided.

    摘要翻译: 水泥组合物的示例性实施方案包括水,水泥和流体损失控制添加剂,所述流体损失控制添加剂包含接枝共聚物。 接枝共聚物包括主链和至少四种选自2-丙烯酰胺基-2-甲基丙磺酸,丙烯酰胺,丙烯酸,乙烯基膦酸,二烯丙基二甲基氯化铵及其盐的接枝单体。 接枝共聚物的骨架包括腐殖酸盐。 还提供了使用水泥组合物的示例性实施方案的固井方法。

    Method of using lignite grafted fluid loss control additives in cementing operations
    10.
    发明授权
    Method of using lignite grafted fluid loss control additives in cementing operations 有权
    在固井作业中使用褐煤接枝失液控制添加剂的方法

    公开(公告)号:US07360598B1

    公开(公告)日:2008-04-22

    申请号:US11702342

    申请日:2007-02-05

    IPC分类号: E21B33/13

    摘要: Methods of cementing in a subterranean formation are provided. An exemplary embodiment comprises introducing a cement composition into a subterranean formation. The cement composition comprises water, a cement and a fluid loss control additive comprising a graft polymer. The graft polymer comprises a backbone comprising a lignite. The graft polymer further comprises grafted monomers selected from the group consisting of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid, vinylphosphonic acid, diallyldimethylammonium chloride and salts thereof.

    摘要翻译: 提供了在地层中固井的方法。 一个示例性的实施方案包括将水泥组合物引入地层中。 水泥组合物包含水,水泥和包含接枝聚合物的失水控制添加剂。 接枝聚合物包含包含褐煤的主链。 接枝聚合物还包括选自2-丙烯酰胺基-2-甲基丙烷磺酸,丙烯酰胺,丙烯酸,乙烯基膦酸,二烯丙基二甲基氯化铵及其盐的接枝单体。