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    • 1. 发明申请
    • MULTI-ARRAY LATEROLOG TOOLS AND METHODS WITH SPLIT MONITOR ELECTRODES
    • 多阵列离散工具和分割监测电极的方法
    • WO2013066436A1
    • 2013-05-10
    • PCT/US2012/046757
    • 2012-07-13
    • HALLIBURTON ENERGY SERVICES, INC.NIE, XiaochunLI, ShanjunDONDERICI, BurkaySAN MARTIN, Luis, E.
    • NIE, XiaochunLI, ShanjunDONDERICI, BurkaySAN MARTIN, Luis, E.
    • G01V3/24
    • G01V3/24
    • Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. At least some of the guard electrodes are positioned between component electrodes of associated split monitor electrodes that enable more accurate measurement of the guard electrode potential. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means.
    • 多阵列后验工具系统和方法获取足够的阵列测量集,以提供不同阵列大小的后者工具测量。 这种系统和方法提供多个调查深度,同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。 在至少一些系统实施例中,有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。 至少一些保护电极位于相关联的分离监视器电极的组件电极之间,从而能够更准确地测量保护电极电势。 工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。 每个电流可以通过频率区分或通过某种其他方式可区分。
    • 8. 发明申请
    • MULTICOMPONENT BOREHOLE RADAR SYSTEMS AND METHODS
    • 多层孔径雷达系统和方法
    • WO2012144977A1
    • 2012-10-26
    • PCT/US2011/032865
    • 2011-04-18
    • HALLIBURTON ENERGY SERVICES, INC.DONDERICI, BurkayGUNER, BarisSAN MARTIN, Luis, E.BITTAR, Michael, S.
    • DONDERICI, BurkayGUNER, BarisSAN MARTIN, Luis, E.BITTAR, Michael, S.
    • G01V3/00
    • G01V3/30G01V3/28
    • Disclosed herein are muUicoraponem borehole radar tools and methods. At least some tool embodiments employ at least two antennas that recei ve reflections of electromagnetic pulses transmitted from the tool. A processor processes the receive signals to identify reflection signals and to determine a direction and/or distance to the sources of the reflection signals. Possible sources include formation boundaries, fluid boundaries, eased wells, and other features that cause contrasts in electromagnetic properties, in addition, to reflection signals, the measured responses may include direct signal measurements that are useful for determining formation resistivity and permittivity. Each of the antennas may transmit and receive, and they may he collocated to reduce tool size and reduce processing complexity. Disclosed, logging tool, examples employ both electric and magnetic dipoie antennas.
    • 这里披露了muUicoraponem钻孔雷达工具和方法。 至少一些工具实施例采用接收从工具传送的电磁脉冲的反射的至少两个天线。 处理器处理接收信号以识别反射信号并确定与反射信号源的方向和/或距离。 可能的来源包括形成边界,流体边界,缓解的井以及引起电磁特性对比的其他特征,此外,对于反射信号,测量的响应可以包括可用于确定地层电阻率和介电常数的直接信号测量。 每个天线可以发送和接收,并且它们可以并置以减少工具尺寸并降低处理复杂性。 公开的测井工具,示例采用电和磁双极天线。