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    • 66. 发明公开
    • MODULAR GEOSTEERING TOOL ASSEMBLY
    • 模块化地质工具组装
    • EP2038513A2
    • 2009-03-25
    • EP07810345.4
    • 2007-07-11
    • Halliburton Energy Services, Inc.
    • BITTAR, Michael, S.MENEZES, ClivePAULK, Martin, D.
    • E21B47/022
    • E21B47/026G01V3/28H01Q1/04H01Q7/00H01Q21/24
    • A retrievable tool for steering through an earth formation includes a first tool assembly (406) and a tilted antenna (410) attached to the first tool assembly (406). The tool also includes a second tool assembly (422) attached to the first tool assembly (406) and a tilted antenna (426) attached to the second tool assembly (422). The first tool assembly (406) attaches to the second tool assembly (422) so that the antennas (410, 426) are tilted in predetermined directions. The tilted antennas (410, 426) are transmitter antennas or receiver antennas. Each tool assembly is a tubular cylinder with a longitudinal axis running the length of the cylinder, wherein the tubular cylinder has two ends, each end including a rotational attachment mechanism. The tool assemblies attach to each other through their rotational attachment mechanisms. The rotational attachment mechanism may be a screw-on mechanism, press-fit mechanism, or welded mechanism.
    • 用于转向穿过地层的可回收工具包括附接到第一工具组件(406)的第一工具组件(406)和倾斜天线(410)。 该工具还包括附接到第一工具组件(406)的第二工具组件(422)和附接到第二工具组件(422)的倾斜天线(426)。 第一工具组件(406)附接到第二工具组件(422),使得天线(410,426)沿预定方向倾斜。 倾斜天线(410,426)是发射器天线或接收器天线。 每个工具组件是具有纵向轴线延伸的圆柱体的管状圆柱体,其中管状圆柱体具有两个端部,每个端部包括旋转附接机构。 工具组件通过它们的旋转附接机构彼此附接。 旋转附接机构可以是旋拧机构,压配合机构或焊接机构。
    • 69. 发明公开
    • REDUCING CONDUCTIVE CASING EFFECT IN TRANSIENT CASED-HOLE RESISTIVITY LOGGING
    • 异径管饲的阶梯效应研究在套管井中瞬变电阻测量
    • EP2923223A1
    • 2015-09-30
    • EP12888637.1
    • 2012-11-21
    • Halliburton Energy Services, Inc.
    • WU, DagangBITTAR, Michael, S.
    • G01V1/40G01V3/18
    • G01V3/26E21B47/00E21B49/003G01V3/28
    • A first broadband magnetic field is induced at a first transmitter position in a well bore drilled through a formation. A first formation magnetic field induced by the first broadband magnetic field is detected at a first receiver position. A second formation magnetic field induced by the first broadband magnetic field is detected at a second receiver position. A second broadband magnetic field is induced at a second transmitter position in the well bore. A third formation magnetic field induced by the second broadband magnetic field is detected at the first receiver position. A fourth formation magnetic field induced by the second broadband magnetic field is detected at the second receiver position. A formation property is computed using a function of the first, second, third, and fourth formation magnetic fields, wherein the function reduces the effect of a casing on the computation of the formation property.
    • 第一宽带磁场在穿过地层中钻出的井孔的第一发射机位置被诱导。 由所述第一宽带磁场感应的第一形成磁场在第一接收器位置被检测。 由所述第一宽带磁场感应的第二形成磁场在第二接收器位置被检测。 第二宽带磁场在井孔的第二发射机位置被诱导。 由所述第二宽带磁场感应的第三形成磁场在所述第一接收器位置被检测。 由所述第二宽带磁场感应的第四形成磁场在所述第二接收器位置被检测。 地层特性是利用在第一,第二,第三,和第四形成magneticfields的函数来计算,worin功能降低的壳体上形成特性的计算的影响。