Method of using humic acid grafted fluid loss control additives in cementing operations
    1.
    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 humic acid grafted fluid loss control additives in cementing operations
    4.
    发明申请
    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:US20080169101A1

    公开(公告)日:2008-07-17

    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。

    Settable drilling fluids comprising cement kiln dust
    6.
    发明申请
    Settable drilling fluids comprising cement kiln dust 有权
    可设置的钻井液包括水泥窑灰尘

    公开(公告)号:US20070238621A1

    公开(公告)日:2007-10-11

    申请号:US11402741

    申请日:2006-04-11

    IPC分类号: C09K8/00 E21B43/00

    CPC分类号: C09K8/16

    摘要: Settable drilling fluids that comprise an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation that comprise providing a settable drilling fluid comprising an aqueous-based drilling fluid and cement kiln dust, introducing the settable drilling fluid into a subterranean formation, and allowing the settable drilling fluid to set in the subterranean formation. Methods of converting an aqueous-based drilling fluid to a settable drilling fluid that comprise providing the aqueous-based drilling fluid, and adding cement kiln dust to the aqueous-based drilling fluid to form the settable drilling fluid. Methods of drilling a well bore and cementing a well bore that comprise drilling a well bore, circulating an aqueous-based drilling fluid in the well bore during the step of drilling the well bore, adding cement kiln dust to the aqueous-based drilling fluid to form a settable drilling fluid, and allowing the settable drilling fluid to set in the well bore.

    摘要翻译: 包括水基钻井液和水泥窑灰尘的可钻井液。 在地下地层中固井的方法,其包括提供可固定的钻井流体,其包括水基钻井液和水泥窑灰尘,将可固定的钻井流体引入地下地层,并允许可固定的钻井液置于地层中。 将含水基钻井液转化为包括提供水基钻井液的可固定钻井液的方法,以及向水基钻井液中添加水泥窑灰以形成可固定的钻井液。 钻井井和固井井的方法,包括钻井井,在钻井期间循环钻井井内的水基钻井液,将水泥窑灰添加到水基钻井液中 形成可设定的钻井液,并允许可设定的钻井液置于井眼中。

    Method of using lignite grafted fluid loss control additives in cementing operations
    9.
    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。