Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids
    85.
    发明授权
    Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids 有权
    用胶体烃流体处理地下地层的方法和组合物

    公开(公告)号:US07328744B2

    公开(公告)日:2008-02-12

    申请号:US10767647

    申请日:2004-01-29

    IPC分类号: E21B43/26 E21B43/04

    摘要: In one embodiment, a method of treating a subterranean formation is provided comprising the steps of providing a gelled liquid hydrocarbon treatment fluid comprising a liquid hydrocarbon and a gelling agent that comprises a polyvalent metal salt of an organophosphonic acid ester or a polyvalent metal salt of an organophosphonic acid, and treating the subterranean formation with the gelled liquid hydrocarbon treatment fluid. The gelled liquid hydrocarbon treatment fluids are suitable for use in subterranean treatment operations, such as subterranean stimulation and sand control treatments like fracturing and gravel packing, that may be carried out in subterranean formations for the production of hydrocarbons. The compositions and methods also may be suitable, for example, to be used as plugging agents, well bore cleanup fluids, viscous sweep fluids, or insulating fluids to be used in associated methods.

    摘要翻译: 在一个实施方案中,提供了一种处理地下地层的方法,包括以下步骤:提供包含液体烃和胶凝剂的胶凝液体烃处理流体,所述胶状液体包含有机膦酸酯的多价金属盐或多价金属盐 有机膦酸,并用胶凝液化烃处理流体处理地层。 胶状液体烃处理流体适合用于地下处理操作,例如地层刺激和砂控制处理,如压裂和砾石填充,其可以在用于生产烃的地下地层中进行。 组合物和方法也可适用于例如用作堵塞剂,井眼清洗液,粘性清洗流体或用于相关方法的绝缘流体。

    STORABLE NONAQUEOUS CEMENT SLURRIES AND METHODS OF USING SAME
    86.
    发明申请
    STORABLE NONAQUEOUS CEMENT SLURRIES AND METHODS OF USING SAME 有权
    有条件的非水性水泥浆及其使用方法

    公开(公告)号:US20080006404A1

    公开(公告)日:2008-01-10

    申请号:US11428771

    申请日:2006-07-05

    IPC分类号: E21B33/13 C09K8/00

    摘要: A method of servicing a wellbore comprising preparing a nonaqueous storable cementitious composition, mixing said composition with an aqueous fluid and, placing said composition into a wellbore. A method of cementing comprising preparing a mixture of cement, a suspension fluid, a dehydrating agent, a first surfactant, and a suspension aid, adding an aqueous solution and a second surfactant to said mixture and, placing the mixture downhole, and allowing the cement to set. A method of producing a lightweight cement slurry comprising the addition of a nonaqueous fluid to cement and water wherein the water content is less than about 40% by total weight of the composition. A method of servicing a wellbore comprising preparing a cement composition comprising from about 80% by weight cement suspended in a nonaqucous fluid, and stabilizing said cement composition through the addition of a suspension aid.

    摘要翻译: 一种维修井筒的方法,包括制备非水可储存的水泥质组合物,将所述组合物与含水流体混合,并将所述组合物置于井筒中。 一种固井方法,包括制备水泥,悬浮液,脱水剂,第一表面活性剂和悬浮助剂的混合物,向所述混合物中加入水溶液和第二表面活性剂,并将混合物置于井下,并允许水泥 设置。 一种生产轻质水泥浆料的方法,包括向水泥和水中加入非水性流体,其中水含量小于组合物总重量的约40%。 一种维修井筒的方法,包括制备一种水泥组合物,该水泥组合物包含约80重量%的悬浮在非饱和流体中的水泥,以及通过添加悬浮助剂来稳定所述水泥组合物。

    Methods of sequentially injecting different sealant compositions into a wellbore to improve zonal isolation
    90.
    发明授权
    Methods of sequentially injecting different sealant compositions into a wellbore to improve zonal isolation 有权
    将不同的密封剂组合物顺序地注入井筒以改善区域分离的方法

    公开(公告)号:US07219732B2

    公开(公告)日:2007-05-22

    申请号:US11001838

    申请日:2004-12-02

    申请人: B. Raghava Reddy

    发明人: B. Raghava Reddy

    IPC分类号: E21B33/13 E21B43/00

    摘要: Methods of sealing a wellbore include sequentially displacing a first sealant composition and a second sealant composition different from the first sealant composition into the wellbore, followed by allowing the first and second sealant compositions to set. In an embodiment, the first and second sealant compositions are pulse injected into the wellbore. The first and second sealant compositions may be arranged in an alternating, stratified pattern in the wellbore. A mechanical property of the set first sealant composition and the same mechanical property of the set second sealant composition have substantially different values. As such, an impermeable, stratified structure comprising the set sealant compositions is formed that may resist failure when at least one of them is subjected to a mechanical stress.

    摘要翻译: 密封井筒的方法包括将不同于第一密封剂组合物的第一密封剂组合物和第二密封剂组合物顺序地移位到井眼中,随后允许第一和第二密封剂组合物固化。 在一个实施方案中,将第一和第二密封剂组合物脉冲注入井眼。 第一和第二密封剂组合物可以在井眼中以交替的分层图案布置。 所设置的第一密封剂组合物的机械性能和所设置的第二密封剂组合物具有相同的机械性能具有显着不同的值。 因此,形成包含固化密封剂组合物的不透水分层结构,当至少其中一个受到机械应力时,可以抵抗故障。