Squeeze composition for restoring isolation
    1.
    发明授权
    Squeeze composition for restoring isolation 有权
    挤压组合物恢复隔离

    公开(公告)号:US08434552B2

    公开(公告)日:2013-05-07

    申请号:US12747554

    申请日:2008-12-11

    IPC分类号: E21B33/13 C09K8/42

    CPC分类号: C09K8/428

    摘要: Compositions containing an alkali swelling polymer and a pH buffer with a pH between 3 and 7 may be used to treat a wellbore. The pH buffer prevents the swelling of the alkali swellable polymer. The compositions may be placed in the wellbore, whereupon they contact another material with pH increasing properties. The pH of the compositions increases, causing the compositions to swell and form a seal. The alkali swelling polymer may be an alkali swelling latex.

    摘要翻译: 可以使用含有碱溶胀性聚合物和PH值在3和7之间的pH缓冲液的组合物来处理井眼。 pH缓冲液可防止碱溶胀性聚合物溶胀。 组合物可以放置在井眼中,于是它们接触具有pH增加性质的另一种材料。 组合物的pH增加,导致组合物膨胀并形成密封。 碱溶胀聚合物可以是碱溶胀胶乳。

    Apparatus and methods for completing subterranean wells
    5.
    发明授权
    Apparatus and methods for completing subterranean wells 失效
    完成地下井的装置和方法

    公开(公告)号:US08701766B2

    公开(公告)日:2014-04-22

    申请号:US13099731

    申请日:2011-05-03

    申请人: Simon James

    发明人: Simon James

    IPC分类号: E21B33/14 E21B43/26 E21B43/27

    摘要: The external surface of a tubular body such as well casing is coated with a substance that, upon exposure to cement, is unstable and degrades. After installation in a subterranean well and subsequent cementation, the coating degrades and forms a gap between the external surface of the tubular body and the cement sheath. Forming the gap is useful for obtaining optimal stimulation during the hydraulic fracturing of unconventional shale-gas formations.

    摘要翻译: 诸如井套管的管状体的外表面涂覆有物质,其在暴露于水泥时不稳定并降解。 在安装在地下井中并随后进行胶结之后,涂层会降低并在管状体的外表面和水泥护套之间形成间隙。 形成间隙对于在非常规页岩气层的水力压裂期间获得最佳刺激是有用的。

    Sealant composition
    6.
    发明授权
    Sealant composition 有权
    密封胶组成

    公开(公告)号:US08158563B2

    公开(公告)日:2012-04-17

    申请号:US12961091

    申请日:2010-12-06

    IPC分类号: C09K8/74 E21B33/13

    摘要: A sealant composition, comprising an alkali metal silicate and a calcium containing inorganic compound, wherein the particles of the calcium containing compound have a mean particle size that is submicron, is useful for sealing cracks, fissures and voids in subterranean wells, thereby restoring zonal isolation. The mean particle size of the calcium containing compound is preferably smaller than 100 nm.

    摘要翻译: 一种密封剂组合物,其包含碱金属硅酸盐和含钙无机化合物,其中所述含钙化合物的颗粒具有亚微米的平均粒度,可用于密封地下井中的裂缝,裂缝和空隙,从而恢复区带隔离 。 含钙化合物的平均粒径优选为小于100nm。

    Cement Compositions Including Polymer Particles
    7.
    发明申请
    Cement Compositions Including Polymer Particles 有权
    包含聚合物颗粒的水泥组合物

    公开(公告)号:US20110136943A1

    公开(公告)日:2011-06-09

    申请号:US12993578

    申请日:2009-05-19

    申请人: Simon James

    发明人: Simon James

    IPC分类号: C04B24/26 C04B24/28

    摘要: Disclosed is a cement composition comprising polymeric particles with inorganic fillers for application in oil well cementing. The fillers improve bonding between the polymeric particles and the cement matrix leading to improved mechanical parameters of the cement system. The filled particles may also lead to improved mixability and slurries that are easier to optimise.

    摘要翻译: 公开了一种水泥组合物,其包含聚合物颗粒与用于油井固井的无机填料。 填料改善聚合物颗粒和水泥基质之间的粘合,导致改善的水泥体系的机械参数。 填充的颗粒还可以导致改进的混合性和更易于优化的浆料。

    Method and Apparatus for Consolidating a Wellbore
    8.
    发明申请
    Method and Apparatus for Consolidating a Wellbore 失效
    用于固井的方法和装置

    公开(公告)号:US20090032257A1

    公开(公告)日:2009-02-05

    申请号:US11814489

    申请日:2006-01-27

    IPC分类号: E21B33/13

    摘要: This invention relates to a method and to a tool to consolidate a wellbore by displacing conventional cement slurry or any other settable fluid, without any permanent casing. A bladder is inflated inside the bore to act as a mold and to form an annulus that can be filled by cement slurry or any other settable fluid. When the cement or the resin is set, the form is retrieved by straight pull; leaving a cement or resin sheath to support the formation without requiring any re-dulling. The sheath can be perforated if necessary (in the producing zone). Applications include without limitations temporary cementation of mono-diameter wells, through-tubing repair of an open hole, or cementation of a slotted liner in water, oil or gas wells

    摘要翻译: 本发明涉及通过移动常规水泥浆或任何其它可固化流体而没有任何永久性壳体来固结井筒的方法和工具。 在孔内充气膀胱以充当模具并形成可由水泥浆或任何其它可固化流体填充的环状物。 当水泥或树脂固定时,通过直拉取出形式; 留下水泥或树脂护套以支撑地层,而不需要任何再钝化。 如果需要,可以穿孔(在生产区域)。 应用包括但不限于单直径孔的临时固井,露天孔的管道修复,或水,油或气井中的开槽衬管的胶结

    Delayed Water-Swelling Materials and Methods of Use
    9.
    发明申请
    Delayed Water-Swelling Materials and Methods of Use 有权
    延迟水溶胀材料和使用方法

    公开(公告)号:US20080108524A1

    公开(公告)日:2008-05-08

    申请号:US11557756

    申请日:2006-11-08

    IPC分类号: C08K3/34 C09K8/02 C09K8/00

    摘要: A water absorbing composition includes a particle having a core of a water-swelling material. A coating substantially surrounds the core that temporarily prevents contact of water with the water-swelling material. The coating may be formed from a layer of water degradable material or a non-water-degradable, non-water absorbent encapsulating layer. A quantity of particles including delayed water-swelling particles formed at least in part from a water-swelling material and, optionally, non-water-swelling particles of the same or different size distributions can be used in treating a formation penetrated by a wellbore. A slurry of the particles is formed with a carrier fluid. The slurry of particles is introduced into the wellbore of the formation to facilitate treatment.

    摘要翻译: 吸水组合物包括具有水溶胀材料芯的颗粒。 涂层基本上围绕芯部,暂时防止水与水溶胀材料的接触。 该涂层可以由一层水可降解材料或非水可降解的非吸水性封装层形成。 至少部分由水溶胀材料形成的延迟的水溶胀颗粒和任选的具有相同或不同尺寸分布的非水溶胀颗粒的颗粒的量可以用于处理由井眼渗透的地层。 用载体流体形成颗粒的浆液。 将颗粒的浆料引入地层的井筒中以便于处理。