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    VISCOUS OLEAGINOUS FLUIDS AND METHODS OF DRILLING AND SERVICING WELLS THEREWITH
    4.
    发明授权
    VISCOUS OLEAGINOUS FLUIDS AND METHODS OF DRILLING AND SERVICING WELLS THEREWITH 有权
    稠油液体及其用途钻井泥浆

    公开(公告)号：EP1499694B1

    公开(公告)日：2010-10-06

    申请号：EP03728354.6

    申请日：2003-04-09

    申请人： Texas United Chemical Company, LLC.

    发明人： Dobson, James W. Jr. ,  Rock, Ronald, Lee

    IPC分类号： C09K8/32 ,  C09K8/62

    CPC分类号： C09K8/82 ,  C09K8/32 ,  C09K8/64 ,  C09K2208/18

    摘要： The invention provides (1) a method of increasing the thermal stability of an oleaginous liquid containing a high surface area silica viscosifier therein by adding a water soluble biopolymer thereto; and (2) a drilling, completion, workover, or well servicing fluid comprising an oleaginous liquid, a water soluble biopolymer, and a high surface area silica viscosifier. The method and fluid may optionally contain a low molecular weight polar additive preferably having a molecular weight less than about 400 and containing one or more polar groups per molecule selected from the group consisting of hydroxyl, amino, and mixtures to thereof.

    Low permeability subterranean formation testing method
    9.
    发明公开
    Low permeability subterranean formation testing method 失效
    低渗透地下地层测试方法

    公开(公告)号：EP0577300A3

    公开(公告)日：1994-04-06

    申请号：EP93304792.0

    申请日：1993-06-18

    申请人： HALLIBURTON COMPANY

    发明人： Blauch, Matthew E. ,  Venditto, James J. ,  McMechan, David E. ,  Tanaka, Gregory L.

    IPC分类号： G01N15/08

    CPC分类号： C09K8/58 ,  C09K8/62 ,  C09K8/703 ,  C09K8/72 ,  C09K8/82 ,  C09K8/94 ,  E21B43/006 ,  G01N15/08 ,  G01N33/241

    摘要： Gas permeability of very low permeability subterranean formations, and the gas permeability reducing effects of injecting one or more treatment fluids thereinto, are measured by injecting a gas into a core sample of the formation at a selected substantially constant pressure, and continuing the injection for a long period of time to ensure steady state flow conditions. The temperature of the gas as it flows through the core sample and the flow rate of the gas exiting the core sample are measured, and the native state gas permeability of the core sample is calculated therefrom. One or more treatment fluids can be injected into the core sample after the native state permeability is determined. Thereafter, the gas permeability can again be determined and compared to the native state permeability.

    摘要翻译： 极低渗透率地下地层的气体渗透性和将一种或多种处理流体注入其中的气体渗透性降低效果通过在选定的基本恒定压力下将气体注入地层的岩心样品中并继续注入 长时间保证稳定状态的流动状态。 测量气体流经岩芯样品时的温度和离开岩芯样品的气体的流速，并由此计算岩芯样品的天然状态气体渗透率。 在确定天然状态渗透性之后，可以将一种或多种处理流体注入岩芯样品中。 之后，可以再次确定气体渗透性并与天然状态渗透率进行比较。