Recyclable foamed fracturing fluids and methods of using the same
    131.
    发明申请
    Recyclable foamed fracturing fluids and methods of using the same 审中-公开
    可循环发泡压裂液及其使用方法

    公开(公告)号:US20070123429A1

    公开(公告)日:2007-05-31

    申请号:US11698615

    申请日:2007-01-26

    IPC分类号: C09K8/00 E21B43/00

    CPC分类号: C09K8/703 Y10S507/922

    摘要: Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing fluid comprises a surfactant that facilitates formation of the foam at the first pH. The foamed fracturing fluid is subsequently pumped to the subterranean formation to fracture it. The pH of the fracturing fluid is then changed to a second pH at which the surfactant facilitates reduction of the foam. The fracturing fluid releases proppant contained in the fluid to the subterranean formation. The fracturing fluid is then allowed to flow back to the surface. It can be recycled by changing the pH of the fracturing fluid back to the first pH and adding a gas to the fluid, causing it to foam again.

    摘要翻译: 提供了压裂液和使用这种流体压裂地层的方法。 具有第一pH的压裂液通过向流体引入气体而发泡。 压裂流体包括有助于在第一pH下形成泡沫的表面活性剂。 随后将发泡压裂液泵送到地层以将其破裂。 然后将压裂液的pH变为第二pH,在该第二pH下,表面活性剂促进泡沫的还原。 压裂液将包含在流体中的支撑剂释放到地层中。 然后允许压裂液流回到表面。 通过将压裂液的pH值改变回第一个pH值并向流体中加入一种气体,使其再次发泡,可以循环使用。

    Well completion spacer fluids containing fibers and methods
    137.
    发明授权
    Well completion spacer fluids containing fibers and methods 有权
    包含纤维和方法的完井间隔液

    公开(公告)号:US07143827B2

    公开(公告)日:2006-12-05

    申请号:US10740189

    申请日:2003-12-18

    IPC分类号: E21B37/00 E21B37/16

    摘要: Well completion spacer fluids containing fibers and methods of using the 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 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 spacer fluid are displaced from the well bore with the second fluid. The spacer fluid comprises water, a weighting material, a dispersing agent, a suspending agent and friction reducer and fibers. The spacer fluid containing the components mentioned above is preferably also foamed.

    摘要翻译: 提供了含有纤维的完井间隔液和使用间隔液的方法。 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。 间隔流体被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,第一流体和间隔流体与第二流体从井眼位移。 间隔液包括水,加重材料,分散剂,悬浮剂和摩擦减摩剂和纤维。 含有上述组分的间隔液优选也发泡。

    Methods of cementing using cement compositions comprising basalt fibers
    138.
    发明申请
    Methods of cementing using cement compositions comprising basalt fibers 有权
    使用包含玄武岩纤维的水泥组合物进行固井的方法

    公开(公告)号:US20060213664A1

    公开(公告)日:2006-09-28

    申请号:US11089609

    申请日:2005-03-25

    IPC分类号: E21B33/13

    摘要: Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing the cement composition into a subterranean formation; allowing the cement composition to set therein. Also provided are methods of cementing a pipe string in a well bore and methods of enhancing the compressive strength of a cement composition.

    摘要翻译: 提供了在地下地层中使用包含玄武岩纤维的水泥组合物的方法。 这种方法的实例可以包括提供包含水,水硬性水泥和多种玄武岩纤维的水泥组合物; 将水泥组合物引入地层; 允许水泥组合物置于其中。 还提供了将管柱固定在井眼中的方法以及提高水泥组合物的抗压强度的方法。