Low heat of hydration cement compositions and methods of using same
    1.
    发明授权
    Low heat of hydration cement compositions and methods of using same 有权
    水合水泥组合物的低热量及其使用方法

    公开(公告)号:US08240385B2

    公开(公告)日:2012-08-14

    申请号:US11385426

    申请日:2006-03-21

    IPC分类号: E21B33/13

    摘要: A method of servicing a wellbore in a subterranean formation, comprising preparing a cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag, vitrified shale, calcium sulfate hemi-hydrate or combinations thereof, and placing the cement composition in the wellbore. A cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag, vitrified shale, calcium sulfate hemi-hydrate or combinations thereof. A cement composition comprising water and a cementitious material, wherein the cementitious material further comprises blast furnace slag.

    摘要翻译: 一种在地下地层中维护井筒的方法,包括制备包含水和水泥质材料的水泥组合物,其中所述水泥质材料还包括高炉矿渣,玻璃化页岩,硫酸钙半水合物或其组合,以及将水泥组合物 在井筒里 一种包含水和水泥质材料的水泥组合物,其中所述水泥质材料还包括高炉矿渣,玻璃化页岩,硫酸钙半水合物或其组合。 一种包含水和水泥质材料的水泥组合物,其中所述胶结材料还包括高炉矿渣。

    Sealant compositions comprising colloidally stabilized latex and methods of using the same
    4.
    发明授权
    Sealant compositions comprising colloidally stabilized latex and methods of using the same 有权
    包含胶体稳定胶乳的密封剂组合物及其使用方法

    公开(公告)号:US07607483B2

    公开(公告)日:2009-10-27

    申请号:US10827022

    申请日:2004-04-19

    IPC分类号: E21B33/13

    摘要: Sealant compositions comprising a colloidally stabilized latex and methods of using the same to service a wellbore are provided. The sealant compositions may include: an aliphatic conjugated diene monomer; an additional monomer comprising a non-aromatic unsaturated mono- or di-carboxylic ester monomer, an aromatic unsaturated monomer, a nitrogen-containing monomer, or combinations thereof; and a protective colloid. The foregoing sealant composition may be displaced into the wellbore to isolate the subterranean formation from a portion of the wellbore, to support a conduit in the wellbore, to plug a void or crack in the conduit, to plug a void or crack in a cement sheath disposed in an annulus of the wellbore, to plug an opening between the cement sheath and the conduit, or combinations thereof. The colloidally stabilized latex remains substantially stable when exposed to salt, which may be present in the wellbore and/or in the sealant composition itself.

    摘要翻译: 提供了包含胶体稳定的胶乳的密封剂组合物和使用该密封剂组合物来维修井筒的方法。 密封剂组合物可包括:脂族共轭二烯单体; 包含非芳族不饱和单羧酸酯单体或二羧酸酯单体,芳族不饱和单体,含氮单体或其组合的另外的单体; 和保护胶体。 上述密封剂组合物可以移入井眼中以将地层与井筒的一部分隔离,以支撑井眼中的导管,以堵塞管道中的空隙或裂缝,以堵塞水泥套管中的空隙或裂缝 设置在井眼的环形空间中,以堵塞水泥护套和导管之间的开口,或其组合。 当暴露于盐时,胶体稳定的胶乳保持基本上稳定,盐可存在于井筒和/或密封剂组合物本身中。

    Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in subterranean formations
    9.
    发明授权
    Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in subterranean formations 有权
    包含熟石灰和二氧化硅的固定延迟水泥组合物以及在地下地层中固井的方法

    公开(公告)号:US07201798B2

    公开(公告)日:2007-04-10

    申请号:US11122438

    申请日:2005-05-05

    IPC分类号: C04B28/18 C09K8/467 C09K8/42

    摘要: Cement compositions for use in subterranean formations are provided. An example of a cement composition is a cement composition comprising: water, a cementitious component consisting essentially of: hydrated lime, and silica; and a dispersant. Another example of a cement composition is a cement composition comprising: water, a cementitious component consisting essentially of: hydrated lime, and silica; and a set retarder. Another example of a cement composition is a cement composition comprising: water, a cementitious component consisting essentially of: hydrated lime, and silica; and a fluid loss control additive.

    摘要翻译: 提供了用于地下地层的水泥组合物。 水泥组合物的实例是水泥组合物,其包含:水,基本上由熟石灰和二氧化硅组成的水泥组分; 和分散剂。 水泥组合物的另一个实例是水泥组合物,其包含:水,基本上由熟石灰和二氧化硅组成的水泥组分; 和一组缓速器。 水泥组合物的另一个实例是水泥组合物,其包含:水,基本上由熟石灰和二氧化硅组成的水泥组分; 和流体损失控制添加剂。

    Cementing in deep water offshore wells
    10.
    发明授权
    Cementing in deep water offshore wells 有权
    深水近海井水泥

    公开(公告)号:US06835243B2

    公开(公告)日:2004-12-28

    申请号:US09854857

    申请日:2001-05-14

    IPC分类号: C04B2400

    摘要: An improved method of cementing casing in a deep water offshore formation penetrated by a well bore comprising the steps of preparing a foamed cement composition comprised of calcium aluminate cement, a set accelerating additive, a thickening time increasing additive, water, a gas, and a mixture of foam forming and foam stabilizing surfactants; placing the cement composition in the annulus between the casing and well bore; and allowing the cement composition to set into a hard impermeable mass therein.

    摘要翻译: 一种改进的井筒固井方法,包括以下步骤:制备由铝酸钙水泥,凝固加速添加剂,增稠时间增加添加剂,水,气体和 泡沫形成和泡沫稳定表面活性剂的混合物; 将水泥组合物放置在套管和井眼之间的环空中; 并且允许水泥组合物在其中设置为不透水的质量。