Method of sealing conduits in lateral well bores
    44.
    发明授权
    Method of sealing conduits in lateral well bores 失效
    侧井孔密封方法

    公开(公告)号:US5957204A

    公开(公告)日:1999-09-28

    申请号:US979047

    申请日:1997-11-26

    摘要: The present invention provides methods of sealing conduits in multi-lateral wells whereby the sealant can withstand stress induced conduit movements without failure. The methods basically include the steps of preparing a hardenable epoxy composition having flexibility and resiliency upon hardening including an epoxide containing liquid or an epoxy resin and an epoxide containing liquid and a hardening agent. The epoxy composition is placed into a lateral well bore between a conduit therein and the walls of the lateral well bore and allowed to harden therein.

    摘要翻译: 本发明提供了在多侧井中密封导管的方法,由此密封剂可以承受应力导致的导管运动而没有故障。 所述方法基本上包括制备在硬化时具有柔软性和弹性的可硬化环氧组合物的步骤,包括含环氧化物的液体或环氧树脂和含环氧化物的液体和硬化剂。 将环氧组合物放置在其中的导管和侧孔的壁之间的侧孔中,并允许其在其中硬化。

    Prevention of latex inversion in saltwater cement compositions for use in subterranean formations and associated methods
    47.
    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