Subterranean treatment fluids, friction reducing copolymers, and associated methods
    21.
    发明授权
    Subterranean treatment fluids, friction reducing copolymers, and associated methods 有权
    地下处理液,减摩共聚物和相关方法

    公开(公告)号:US07582590B2

    公开(公告)日:2009-09-01

    申请号:US12047568

    申请日:2008-03-13

    IPC分类号: E21B43/00 C09K8/588

    摘要: Methods of treating a portion of a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid and a friction reducing copolymer that comprises acrylamide and 2-(2-ethoxyethoxy)-ethyl acrylate and introducing the aqueous treatment fluid into the portion of the subterranean formation. Methods of fracturing a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid and a friction reducing copolymer that comprises acrylamide and 2-(2-ethoxyethoxy)-ethyl acrylate and introducing the aqueous treatment fluid into the subterranean formation at or above a pressure sufficient to create one or more fractures in the subterranean formation. Aqueous treatment fluids comprising: an aqueous fluid and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester.

    摘要翻译: 处理地下地层的一部分的方法,包括:提供包含水性流体和减摩性共聚物的水性处理流体,所述摩擦降低共聚物包括丙烯酰胺和丙烯酸2-(2-乙氧基乙氧基) - 乙基酯,并将所述水性处理流体引入所述 地层。 破碎地下地层的方法,包括:提供包含含水流体和减摩性共聚物的水性处理流体,所述水性流体和减摩性共聚物包含丙烯酰胺和丙烯酸2-(2-乙氧基乙氧基) - 乙基酯,并将含水处理流体引入到地层中或其上方 足以在地层中产生一个或多个裂缝的压力。 水处理流体包括:水性流体和包含丙烯酰胺和丙烯酸酯的减摩性共聚物。

    Methods, aqueous well treating fluids and friction reducers therefor
    22.
    发明授权
    Methods, aqueous well treating fluids and friction reducers therefor 有权
    方法,水处理液和减摩剂

    公开(公告)号:US06784141B1

    公开(公告)日:2004-08-31

    申请号:US10419455

    申请日:2003-04-21

    IPC分类号: C09K702

    摘要: The present invention relates to methods, aqueous treating fluids and friction pressure reducers for the treating fluids. A treating fluid of the invention comprises water and a non-toxic environmentally acceptable friction pressure reducer comprising a mixture of a copolymer of acrylamide and dimethylaminoethyl acrylate quaternized with benzyl chloride and a stabilizing and dispersing homopolymer of ethanaminium,N,N,N-trimethyl-2-[(1,oxo-2-prbpenyl)oxy]-chloride.

    摘要翻译: 本发明涉及用于处理流体的方法,水处理流体和摩擦减压器。 本发明的处理流体包含水和无毒环境可接受的摩擦减压剂,其包含丙烯酰胺与丙烯酸酯季铵化的丙烯酰胺和丙烯酸二甲基氨基乙酯的共聚物与乙胺,N,N,N-三甲基 - 2 - [(1,氧代-2-丙烯基)氧基]氯化物。

    Foamed acidizing fluids, additives and methods of acidizing subterranean zones
    23.
    发明授权
    Foamed acidizing fluids, additives and methods of acidizing subterranean zones 有权
    发泡酸化液,添加剂和酸化地下区域的方法

    公开(公告)号:US06555505B1

    公开(公告)日:2003-04-29

    申请号:US10094577

    申请日:2002-03-08

    IPC分类号: C09K300

    摘要: The present invention provides environmentally safe foamed acidizing fluids for acidizing subterranean zones, additives for foaming and stabilizing foamed acidizing fluids and methods of acidizing subterranean zones. The foamed acidizing fluids are basically comprised of an aqueous acid solution, sufficient gas to form a foam and an effective amount of an additive for foaming and stabilizing the aqueous acid solution comprised of hydrolyzed keratin.

    摘要翻译: 本发明提供了用于酸化地下区域的环境安全的发泡酸化流体,用于发泡和稳定发泡酸化流体的添加剂以及酸化地下区域的方法。 发泡酸化流体基本上由酸水溶液,足够的气体形成泡沫和有效量的用于发泡和稳定由水解角蛋白组成的酸水溶液的添加剂。

    Treatment fluids comprising friction reducers and antiflocculation additives and associated methods
    25.
    发明授权
    Treatment fluids comprising friction reducers and antiflocculation additives and associated methods 有权
    包含减摩剂和抗絮凝添加剂及相关方法的处理液

    公开(公告)号:US07806185B2

    公开(公告)日:2010-10-05

    申请号:US11368221

    申请日:2006-03-03

    IPC分类号: E21B43/26

    摘要: Methods comprising: providing an aqueous treatment fluid comprising an aqueous fluid, a friction reducing polymer, and an antiflocculation additive; and introducing the treatment fluid into a subterranean formation. Methods of fracturing a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid, a friction reducing polymer, and an antiflocculation additive; and introducing the treatment fluid into a well bore penetrating the subterranean formation at rate in the range of from about 30 barrels to about 250 barrels per minute so as to create or enhance one or more fractures in the subterranean formation. Aqueous treatment fluids comprising: an aqueous fluid, a friction reducing polymer in an amount sufficient to reduce friction without forming a gel, and an antiflocculation additive.

    摘要翻译: 方法包括:提供包含水性流体,减摩聚合物和抗絮凝添加剂的含水处理流体; 并将处理流体引入地层中。 破碎地下地层的方法,包括:提供包含含水流体,减摩聚合物和抗絮凝添加剂的含水处理流体; 并将处理流体引入渗透到地下地层的井眼中,速率范围为约30桶至约250桶/分钟,以便产生或增强地下地层中的一个或多个裂缝。 含水处理流体包括:含水流体,足以减少摩擦而不形成凝胶的摩擦降低聚合物和抗絮凝添加剂。

    Gas well treatment compositions and methods
    27.
    发明授权
    Gas well treatment compositions and methods 失效
    气井处理组合物和方法

    公开(公告)号:US5310002A

    公开(公告)日:1994-05-10

    申请号:US870546

    申请日:1992-04-17

    摘要: An additive for addition to conventional well treatment fluids to enhance the ability of the fluids to be recovered from subterranean formations, to generate a foam in association with the fluids and/or to enhance the ability of the fluids to remove water and other connate fluids interlocked with gas in the formations. The additive includes about 25% to about 50% by volume of a microemulsion generating component which forms an acid and/or water external microemulsion when added to the treatment fluid, and about 50% to about 75% by volume of a foaming agent component. The foaming agent component includes at least one nonionic surface active agent having an HLB of from 12 to 22. The additive is particularly suitable for addition to foam fracturing fluids useful for stimulating tight or otherwise unconventional gas formations. Also provided are a gas well treatment composition employing the inventive additive and a method of treating a subterranean formation in which the inventive composition is employed.

    摘要翻译: 用于添加到常规井处理流体中的添加剂,以增强流体从地层中回收的能力,产生与流体相关联的泡沫和/或增强流体除去水和其它合生液的互锁能力 在地层中有气体。 添加剂包含约25%至约50%(体积)的微乳液产生组分,当加入到处理流体中时形成酸和/或水外部微乳液,和约50%至约75%体积的发泡剂组分。 发泡剂组分包括至少一种HLB为12至22的非离子表面活性剂。该添加剂特别适用于添加到用于刺激紧密或其它非常规气体形成的泡沫压裂液中。 还提供了采用本发明添加剂的气井处理组合物和其中使用本发明组合物的地下地层处理方法。

    Composition and method for controlling precipitation when acidizing wells
    29.
    发明授权
    Composition and method for controlling precipitation when acidizing wells 失效
    酸化井控制沉淀物的组成和方法

    公开(公告)号:US06225261B1

    公开(公告)日:2001-05-01

    申请号:US08073370

    申请日:1993-06-07

    IPC分类号: C09K300

    摘要: A composition and method for acidizing a formation in the presence of ferric ion, free sulfur and/or sulfides is disclosed. The composition employs a ferric ion reducing agent and a sulfide reactant separately or in combination. The ferric ion reducing agent is a thioalkyl acid. The sulfide reactant compounds include &agr;-diketones and saturated and &agr;-unsaturated cyclic ketones. In another aspect, the reducing activity of the thioalkyl acid is accelerated by the presence of a catalytic quantity of a compound or mixture of compounds which yield in acid solution cuprous ion, cupric ion or combinations thereof with iodide ion.

    摘要翻译: 公开了一种在铁离子,游离硫和/或硫化物存在下酸化地层的组合物和方法。 该组合物分别或组合使用三价铁离子还原剂和硫化物反应物。 铁离子还原剂是硫代烷基酸。 硫化物反应物化合物包括α-二酮和饱和和α-不饱和环酮。 在另一方面,硫代烷基酸的还原活性通过催化量的化合物或化合物的混合物的存在而加速,其在酸性溶液中产生亚铜离子,铜离子或其与碘离子的组合。

    Composition and method for controlling precipitation when acidizing wells
    30.
    发明授权
    Composition and method for controlling precipitation when acidizing wells 失效
    酸化井控制沉淀物的组成和方法

    公开(公告)号:US5622919A

    公开(公告)日:1997-04-22

    申请号:US556679

    申请日:1995-11-13

    CPC分类号: C09K8/74 C09K8/528 Y10S585/95

    摘要: A composition and method for acidizing a formation in the presence of ferric ion, free sulfur and/or sulfides is disclosed. The composition employs a ferric ion reducing agent and a sulfide reactant separately or in combination. The ferric ion reducing agent is a thioalkyl acid. The sulfide reactant compounds include .alpha.-diketones and saturated and .alpha.-unsaturated cyclic ketones. In another aspect, the reducing activity of the thioalkyl acid is accelerated by the presence of a catalytic quantity of a compound or mixture of compounds which yield in acid solution cuprous ion, cupric ion or combinations thereof with iodide ion.

    摘要翻译: 公开了一种在铁离子,游离硫和/或硫化物存在下酸化地层的组合物和方法。 该组合物分别或组合使用三价铁离子还原剂和硫化物反应物。 铁离子还原剂是硫代烷基酸。 硫化物反应物化合物包括α-二酮和饱和和α-不饱和环酮。 在另一方面,硫代烷基酸的还原活性通过催化量的化合物或化合物的混合物的存在而加速,其在酸性溶液中产生亚铜离子,铜离子或其与碘离子的组合。