Methods of generating gas in and foaming well cement compositions
    62.
    发明授权
    Methods of generating gas in and foaming well cement compositions 失效
    产生气体和发泡好的水泥组合物的方法

    公开(公告)号:US06858566B1

    公开(公告)日:2005-02-22

    申请号:US10159001

    申请日:2002-05-31

    摘要: The present invention relates to methods of generating gas in and forming cement compositions that may be introduced into a subterranean zone. A method of the present invention provides a method of generating gas in a cement composition that comprises providing the cement composition comprising a hydraulic cement and water; providing an oxidizing agent; providing at least one gas generating chemical; and contacting the cement composition with the oxidizing agent and/or the gas generating chemical downstream of at least one cement pump so that a gas is generated in the cement composition downstream of at least one cement pump. Methods of foaming cement compositions are also provided.

    摘要翻译: 本发明涉及在可以引入地下区域中产生气体并形成水泥组合物的方法。 本发明的方法提供了一种在水泥组合物中产生气体的方法,该方法包括提供包含水硬性水泥和水的水泥组合物; 提供氧化剂; 提供至少一种产气化学品; 以及使所述水泥组合物与至少一个水泥泵下游的氧化剂和/或气体发生化学物质接触,使得在至少一个水泥泵下游的水泥组合物中产生气体。 还提供了发泡水泥组合物的方法。

    Sealing subterranean zones
    64.
    发明授权
    Sealing subterranean zones 失效
    密封地下区域

    公开(公告)号:US06555507B2

    公开(公告)日:2003-04-29

    申请号:US09850223

    申请日:2001-05-07

    IPC分类号: C09K310

    摘要: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. The compositions are basically comprised of water, an aqueous rubber latex, an organophillic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.

    摘要翻译: 本发明提供改进的组合物和使用该组合物密封地下区域的方法。 组合物基本上由水,水性橡胶胶乳,有机磷酸粘土,碳酸钠,环氧树脂和用于所述环氧树脂的硬化剂组成。

    Methods of sealing pipe strings in disposal wells
    66.
    发明授权
    Methods of sealing pipe strings in disposal wells 失效
    处理井密封管柱的方法

    公开(公告)号:US06321841B1

    公开(公告)日:2001-11-27

    申请号:US09789446

    申请日:2001-02-21

    IPC分类号: E21B3314

    摘要: Improved methods of completing wells penetrating subterranean corrosive fluid disposal zones are provided. The methods basically comprise the steps of preparing a pumpable, water compatible, corrosion resistant, hardenable epoxy sealing composition comprised of a hardenable epoxide containing liquid and a hardening agent, placing the epoxy sealing composition in the annulus between a string of pipe and a well bore penetrating a disposal zone and allowing the epoxy sealing composition to harden.

    摘要翻译: 提供完善穿透地下腐蚀性液体处理区的井的改进方法。 该方法基本上包括以下步骤:制备由可硬化的含环氧化物的液体和硬化剂组成的可泵送的,水相容的,耐腐蚀的可硬化环氧树脂密封组合物,将环氧密封组合物放置在一排管和井筒之间的环空中 穿透处置区域并使环氧密封组合物硬化。

    Prevention of latex inversion in saltwater cement compositions for use in subterranean formations and associated methods
    70.
    发明授权
    Prevention of latex inversion in saltwater cement compositions for use in subterranean formations and associated methods 有权
    防止在地下地层和相关方法中使用的盐水水泥组合物中的胶乳反转

    公开(公告)号:US07363977B2

    公开(公告)日:2008-04-29

    申请号:US11540229

    申请日:2006-09-28

    IPC分类号: E21B33/13

    摘要: The prevention of latex inversion in saltwater cement compositions for use in subterranean formations by inclusion of a combination of latex stabilizers and associated methods of cementing. Saltwater cement compositions comprising saltwater, a cement, a latex, a first latex stabilizer comprising a surfactant having the formula: R—O—(OCH2CH2)mXM wherein R is an alkyl group having in the range of from about 10 carbons to about 20 carbons, m is an integer in the range of from about 10 to about 40, X is OSO3 or SO3, and M is a compatible cation, and a second latex stabilizer comprising an alcohol ether sulfate having the formula: R1—O—(OCH2CH2)nOSO3M wherein R1 is an alkyl group having in the range of from about 4 carbons to about 12 carbons, n is an integer in the range of from about 1 to about 10, and M is a compatible cation.

    摘要翻译: 通过包括胶乳稳定剂和相关的固着方法的组合,防止用于地下地层的盐水水泥组合物中的胶乳反转。 包含盐水,水泥,胶乳,第一胶乳稳定剂的盐水水泥组合物,其包含具有下式的表面活性剂:<?in-line-formula description =“In-line formula”end =“lead”?> RO-(OCH 其中R(R 2)= X' 是具有约10碳至约20个碳原子的烷基,m是约10至约40的整数,X是OSO 3或SO 3 和M是相容的阳离子,和第二胶乳稳定剂,其包含具有下式的醇醚硫酸盐:<?in-line-formula description =“In-line Formulas”end =“lead”?> R < N 2 O 2(OCH 2 CH 2)n N 1 O 2(OCH 2 CH 2) in-line-formula description =“In-line Formulas”end =“tail”?>其中R 1是具有约4个碳原子至约12个碳原子的烷基,n是 大约1到大约10的整数,M是一个com 可疑阳离子