Methods of improving the shelf life of a cement composition comprising a coated gas-generating material
    1.
    发明授权
    Methods of improving the shelf life of a cement composition comprising a coated gas-generating material 有权
    包括涂覆气体发生材料的水泥组合物的保质期提高方法

    公开(公告)号:US07334638B2

    公开(公告)日:2008-02-26

    申请号:US11153666

    申请日:2005-06-15

    IPC分类号: E21B33/13

    摘要: According to various embodiments, methods of increasing a shelf life of a gas-generating material comprise: including a C8-C18 hydrocarbon in a mixture used to coat the gas-generating material. This gas-generating material may be used in a cement composition to generate gas therein after the composition has been placed in a wellbore. The coating surrounding the gas-generating material serves to delay the reaction for producing the gas until desired. The gas may serve to inhibit gas migration from an adjacent subterranean formation into and through the cement composition before it sets into a hard mass. Coating the gas-generating material with the mixture may ensure that it can be stored for a relatively long period of time (e.g., up to 1 year or longer) without being concerned that it might experience sintering and thus react prematurely.

    摘要翻译: 根据各种实施方案,提高气体发生材料的保存期限的方法包括:包含用于涂覆气体发生材料的混合物中的C 8 -C 18 -C 18烃, 生成材料。 在将组合物放置在井眼中之后,该气体发生材料可用于水泥组合物中以产生气体。 围绕气体发生材料的涂层用于延迟用于产生气体的反应直到期望。 气体可以用于在将其固化成硬质块之前,阻止气体从邻近的地层迁移到水泥组合物中并通过该水泥组合物。 用混合物涂覆气体发生材料可以确保其可以储存较长时间(例如长达1年或更长时间),而不用担心它可能经历烧结并因此过早反应。

    Gas-generating additives having improved shelf lives for use in cement compositions
    2.
    发明授权
    Gas-generating additives having improved shelf lives for use in cement compositions 有权
    具有改善保质期的产气添加剂用于水泥组合物中

    公开(公告)号:US07473313B2

    公开(公告)日:2009-01-06

    申请号:US11153087

    申请日:2005-06-15

    IPC分类号: C04B24/00

    摘要: According to various embodiments, gas-generating additives for use in a cement composition comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and having a shelf life of about 12 months or greater. The gas-generating additives may also include a C8-C18 hydrocarbon. In more embodiments, cement compositions comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and a C8-C18 hydrocarbon for increasing a shelf life of the gas-generating material. In yet more embodiments, cement compositions comprise: a cement; a fluid for making the cement composition pumpable; a hydrogen-generating material at least partially coated with a mixture for delaying a hydrogen-generating reaction, the mixture comprising sorbitan monooleate and an isoparaffin.

    摘要翻译: 根据各种实施方案,用于水泥组合物的气体产生添加剂包括:至少部分地涂覆有包含脱水山梨糖醇,甘油或季戊四醇的脂肪酸酯并且具有约12个月的保质期的混合物的气体发生材料 或更大。 气体发生添加剂还可以包括C8-C18烃。 在更具体的实施方案中,水泥组合物包括:至少部分地涂覆有包含脱水山梨糖醇,甘油或季戊四醇的脂肪酸酯和C8-C18烃的混合物的气体发生材料,用于增加气体发生材料的保质期。 在更多实施方案中,水泥组合物包含:水泥; 用于使水泥组合物可泵送的流体; 至少部分地涂覆有用于延迟产氢反应的混合物的产氢材料,所述混合物包含脱水山梨糖醇单油酸酯和异链烷烃。

    Gas-generating additives having improved shelf lives for use in cement compositions
    3.
    发明授权
    Gas-generating additives having improved shelf lives for use in cement compositions 有权
    具有改善保质期的产气添加剂用于水泥组合物中

    公开(公告)号:US07722954B2

    公开(公告)日:2010-05-25

    申请号:US12277850

    申请日:2008-11-25

    IPC分类号: B32B5/16

    摘要: According to various embodiments, gas-generating additives for use in a cement composition comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and having a shelf life of about 12 months or greater. The gas-generating additives may also include a C8-C18 hydrocarbon. In more embodiments, cement compositions comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and a C8-C18 hydrocarbon for increasing a shelf life of the gas-generating material. In yet more embodiments, cement compositions comprise: a cement; a fluid for making the cement composition pumpable; a hydrogen-generating material at least partially coated with a mixture for delaying a hydrogen-generating reaction, the mixture comprising sorbitan monooleate and an isoparaffin.

    摘要翻译: 根据各种实施方案,用于水泥组合物的气体产生添加剂包括:至少部分地涂覆有包含脱水山梨糖醇,甘油或季戊四醇的脂肪酸酯并且具有约12个月的保质期的混合物的气体发生材料 或更大。 气体发生添加剂还可以包括C8-C18烃。 在更具体的实施方案中,水泥组合物包括:至少部分地涂覆有包含脱水山梨糖醇,甘油或季戊四醇的脂肪酸酯和C8-C18烃的混合物的气体发生材料,用于增加气体发生材料的保质期。 在更多实施方案中,水泥组合物包含:水泥; 用于使水泥组合物可泵送的流体; 至少部分地涂覆有用于延迟产氢反应的混合物的产氢材料,所述混合物包含脱水山梨糖醇单油酸酯和异链烷烃。

    Gas-Generating Additives Having Improved Shelf Lives for Use in Cement Compositions
    4.
    发明申请
    Gas-Generating Additives Having Improved Shelf Lives for Use in Cement Compositions 有权
    改善水泥组合物使用寿命的气体添加剂

    公开(公告)号:US20090071375A1

    公开(公告)日:2009-03-19

    申请号:US12277850

    申请日:2008-11-25

    IPC分类号: C04B22/04

    摘要: According to various embodiments, gas-generating additives for use in a cement composition comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and having a shelf life of about 12 months or greater. The gas-generating additives may also include a C8-C18 hydrocarbon. In more embodiments, cement compositions comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and a C8-C18 hydrocarbon for increasing a shelf life of the gas-generating material. In yet more embodiments, cement compositions comprise: a cement; a fluid for making the cement composition pumpable; a hydrogen-generating material at least partially coated with a mixture for delaying a hydrogen-generating reaction, the mixture comprising sorbitan monooleate and an isoparaffin.

    摘要翻译: 根据各种实施方案,用于水泥组合物的气体产生添加剂包括:至少部分地涂覆有包含脱水山梨糖醇,甘油或季戊四醇的脂肪酸酯并且具有约12个月的保质期的混合物的气体发生材料 或更大。 气体发生添加剂还可以包括C8-C18烃。 在更具体的实施方案中,水泥组合物包括:至少部分地涂覆有包含脱水山梨糖醇,甘油或季戊四醇的脂肪酸酯和C8-C18烃的混合物的气体发生材料,用于增加气体发生材料的保质期。 在更多实施方案中,水泥组合物包含:水泥; 用于使水泥组合物可泵送的流体; 至少部分地涂覆有用于延迟产氢反应的混合物的产氢材料,所述混合物包含脱水山梨糖醇单油酸酯和异链烷烃。

    Well cementing methods using compositions containing liquid polymeric additives
    5.
    发明授权
    Well cementing methods using compositions containing liquid polymeric additives 失效
    使用含有液体聚合物添加剂的组合物的固井方法

    公开(公告)号:US06268406B1

    公开(公告)日:2001-07-31

    申请号:US09478862

    申请日:2000-01-07

    IPC分类号: C09K700

    摘要: Methods of cementing subterranean zones penetrated by a well bores are provided. In accordance with the methods, a cement composition is prepared comprised of a hydraulic cement, sufficient water to form a slurry and an effective amount of a liquid fluid loss control additive comprised of an emulsion having a copolymer of N,N-dimethylacrylamide and 2-acrylamido-2-methylpropane sulfonic acid or a salt thereof contained therein. The cement composition is placed in a subterranean zone and then allowed to set into a hard impermeable mass therein.

    摘要翻译: 提供了穿透井眼的固井地下区域的方法。 根据该方法,制备水泥组合物,其由水硬性水泥,足够的水形成浆料和有效量的液体流体损失控制添加剂组成,该添加剂由具有N,N-二甲基丙烯酰胺和2- 丙烯酰氨基-2-甲基丙烷磺酸或其盐。 将水泥组合物置于地下区域中,然后将其置于其中难以渗透的块中。