Recyclable foamed fracturing fluids and methods of using the same
    36.
    发明申请
    Recyclable foamed fracturing fluids and methods of using the same 有权
    可循环发泡压裂液及其使用方法

    公开(公告)号:US20050043188A1

    公开(公告)日:2005-02-24

    申请号:US10956928

    申请日:2004-10-01

    IPC分类号: C09K8/70 C09K7/02

    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。

    Cement compositions and methods utilizing nano-clay
    39.
    发明授权
    Cement compositions and methods utilizing nano-clay 有权
    水泥组合物和利用纳米粘土的方法

    公开(公告)号:US08603952B2

    公开(公告)日:2013-12-10

    申请号:US13431701

    申请日:2012-03-27

    IPC分类号: C09K8/46

    摘要: The present invention includes well treatment fluids and methods utilizing nano-particles. An embodiment of a method of the present invention may comprise introducing a treatment fluid comprising nano-clay into a subterranean formation. The treatment fluid may be selected from the group consisting of a cement composition, a drilling fluid, a spacer fluid, and a lost circulation control composition. Another embodiment of the present invention may comprise a method of cementing. The method of cementing may comprise introducing a cement composition comprising a hydraulic cement, nano-clay, and water into a subterranean formation. The method further may comprise allowing the cement composition to set in the subterranean formation. Yet another embodiment of the present invention may comprise a treatment fluid, the treatment fluid comprising nano-clay. The treatment fluid may be selected from the group consisting of a cement composition, a drilling fluid, a spacer fluid, and a lost circulation control composition.

    摘要翻译: 本发明包括良好的处理流体和利用纳米颗粒的方法。 本发明的方法的一个实施方案可以包括将包含纳米粘土的处理流体引入到地下地层中。 处理流体可以选自水泥组合物,钻井液,间隔液和失控循环控制组合物。 本发明的另一实施例可以包括一种固井方法。 固井方法可以包括将包含水硬性水泥,纳米粘土和水的水泥组合物引入到地下地层中。 该方法还可以包括允许水泥组合物固定在地层中。 本发明的另一个实施方案可以包括处理流体,所述处理流体包含纳米粘土。 处理流体可以选自水泥组合物,钻井液,间隔液和失控循环控制组合物。