Foamed compositions and methods of use in subterranean zones
    1.
    发明授权
    Foamed compositions and methods of use in subterranean zones 有权
    发泡组合物和在地下区域使用的方法

    公开(公告)号:US06619399B1

    公开(公告)日:2003-09-16

    申请号:US10386822

    申请日:2003-03-12

    IPC分类号: E21B33138

    摘要: The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed cement composition. The process utilizes air to foam the cement after the air has been treated to lower the oxygen content below that concentration necessary to support combustion. Additionally, the current invention provides a process for completing a well bore using foamed cement wherein the foam is generated with reduced oxygen content air. Finally, the current invention provides a foamed cement composition wherein the gaseous portion of the composition is air having a reduced oxygen content.

    摘要翻译: 本发明提供了用于完成井眼的改进的方法和组合物。 在一个方面,本发明提供了一种制备泡沫水泥组合物的方法。 在处理空气之后,该方法利用空气来发泡水泥以降低低于支持燃烧所需浓度的氧含量。 此外,本发明提供了一种使用泡沫胶水完成井眼的方法,其中泡沫是通过减少含氧空气产生的。 最后,本发明提供一种发泡水泥组合物,其中组合物的气体部分是具有降低的氧含量的空气。

    Foamed compositions and methods of use in subterranean zones
    2.
    发明授权
    Foamed compositions and methods of use in subterranean zones 有权
    发泡组合物和在地下区域使用的方法

    公开(公告)号:US07040419B2

    公开(公告)日:2006-05-09

    申请号:US10616270

    申请日:2003-07-09

    IPC分类号: C09K7/00

    摘要: The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed well composition. The process utilizes air to foam the composition after the air has been treated to lower the oxygen content below that concentration necessary to support combustion. Additionally, the current invention provides a process for completing and/or treating a well bore using a foamed composition wherein the foam is generated with reduced oxygen content air. Finally, a preferred embodiment of the invention provides a foamed cement composition wherein the gaseous portion of the composition is air having a reduced oxygen content.

    摘要翻译: 本发明提供用于完成井眼的改进的方法和组合物。 一方面,本发明提供了一种制备泡沫井组合物的方法。 在处理空气后,该方法利用空气来发泡组合物,以降低低于支持燃烧所需浓度的氧含量。 此外,本发明提供了一种使用泡沫组合物完成和/或处理井眼的方法,其中泡沫是由减少的氧含量空气产生的。 最后,本发明的优选实施方案提供了一种泡沫水泥组合物,其中组合物的气体部分是具有降低的氧含量的空气。

    Well completion foamed spacer fluids and methods
    3.
    发明授权
    Well completion foamed spacer fluids and methods 失效
    完井泡沫隔离液和方法

    公开(公告)号:US06852676B1

    公开(公告)日:2005-02-08

    申请号:US10630145

    申请日:2003-07-30

    IPC分类号: C09K8/40 C09K3/00

    CPC分类号: C09K8/40 Y10S507/928

    摘要: Well completion foamed spacer fluids and methods of using the foamed spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second fluid comprises the following steps. A foamed spacer fluid is placed between the first and second fluids to separate the first and second fluids and to remove the first fluid from the walls of the well bore. Thereafter, the first fluid and the foamed spacer fluid are displaced from the well bore with the second fluid.

    摘要翻译: 提供完井泡沫隔离液和使用泡沫隔离液的方法。 本发明的用不相容的第二流体从井眼移位第一流体的方法包括以下步骤。 将泡沫隔离液放置在第一和第二流体之间以分离第一和第二流体并从井眼的壁移除第一流体。 此后,第一流体和泡沫隔离液从第二流体的井眼位移。

    Oil-based settable spotting fluid
    6.
    发明授权
    Oil-based settable spotting fluid 有权
    油性可固定点胶液

    公开(公告)号:US06315042B1

    公开(公告)日:2001-11-13

    申请号:US09626374

    申请日:2000-07-26

    IPC分类号: E21B3314

    摘要: Oil-based settable spotting fluid compositions and methods of using the compositions are provided. The oil-based settable spotting fluid compositions are basically comprised of oil, an emulsifying surfactant for emulsifying the oil with water whereby an oil-external emulsion is formed, a de-emulsifying surfactant which in time de-emulsifies said oil-external emulsion when the emulsion is contacted with external water, a hydraulic settable component selected from the group consisting of ASTM Class C or the equivalent fly ash and ASTM Class F or the equivalent fly ash together with a source of calcium and water selected from the group consisting of fresh water and salt water.

    摘要翻译: 提供了油基可固化点样液组合物和使用该组合物的方法。 油性可固定点胶液组合物基本上由油组成,乳化表面活性剂用于乳化油,由此形成油外乳液,去乳化表面活性剂,其在时间上乳化所述油外乳液时 乳液与外部水接触,一种选自ASTM C级或相当的粉煤灰和ASTM F级或相当的粉煤灰的水硬性固化组分以及选自淡水的钙和水源 和盐水。

    Well completion foamed spacer fluids and methods
    7.
    发明授权
    Well completion foamed spacer fluids and methods 失效
    完井泡沫隔离液和方法

    公开(公告)号:US06668927B1

    公开(公告)日:2003-12-30

    申请号:US10393965

    申请日:2003-03-21

    IPC分类号: E21B3316

    CPC分类号: C09K8/40 Y10S507/928

    摘要: Well completion foamed spacer fluids and methods of using the foamed spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second fluid comprises the following steps. A foamed spacer fluid is placed between the first and second fluids to separate the first and second fluids and to remove the first fluid from the walls of the well bore. Thereafter, the first fluid and the foamed spacer fluid are displaced from the well bore with the second fluid.

    摘要翻译: 提供完井泡沫隔离液和使用泡沫隔离液的方法。 本发明的用不相容的第二流体从井眼移位第一流体的方法包括以下步骤。 将泡沫隔离液放置在第一和第二流体之间以分离第一和第二流体并从井眼的壁移除第一流体。 此后,第一流体和泡沫隔离液从第二流体的井眼位移。