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    • 32. 发明授权
    • Apparatus and method for formation evaluation
    • 地层评价装置及方法
    • US07458419B2
    • 2008-12-02
    • US10960403
    • 2004-10-07
    • Raymond V. Nold, IIIAlexander F. ZazovskySteve ErvinChristopher S. Del CampoStephane Briquet
    • Raymond V. Nold, IIIAlexander F. ZazovskySteve ErvinChristopher S. Del CampoStephane Briquet
    • E21B49/10
    • E21B49/10
    • A probe assembly samples fluid from a wellbore penetrating a subsurface formation having a virgin fluid therein beyond a layer of contaminated fluid surrounding the wellbore. The probe assembly includes a probe body extendable from a downhole tool, and a packer carried by the probe body and having a distal surface adapted for sealingly engaging the wellbore. The packer has an outer and inner periphery, with the inner periphery being defined by a bore through the packer. The packer is further equipped with channel(s) formed in the distal surface and arranged to define an annular cleanup intake intermediate the inner and outer peripheries. The passageway(s) extend(s) through the packer for conducting virgin fluid and/or contaminated fluid between the channel(s). A sampling tube is sealingly disposed in the bore of the packer for conducting virgin fluid to a second inlet in the probe body and the downhole tool.
    • 探针组件从穿透具有其中的初始流体的地下地层的井孔中流出来自围绕井眼的污染流体层的流体。 探针组件包括可从井下工具延伸的探针主体和由探针主体承载并且具有适于密封地接合井筒的远侧表面的封隔器。 封隔器具有外周和内周边,内周由穿过封隔器的孔限定。 封隔器还配备有形成在远侧表面中的通道,并且布置成限定在内外周边中间的环形净化进口。 通道延伸穿过封隔器,用于在通道之间进行原始流体和/或污染的流体。 采样管密封地设置在封隔器的孔中,用于将初始流体引导到探针主体和井下工具中的第二入口。