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    • 1. 发明申请
    • TIME DEPENDENT NEUTRON-GAMMA SPECTROSCOPY
    • 时间依赖的中子 - 伽马光谱
    • WO2011094405A3
    • 2011-11-17
    • PCT/US2011022717
    • 2011-01-27
    • BAKER HUGHES INCKOPAL MAGARETE MINANC FEYZIROBERTS LOREN P
    • KOPAL MAGARETE MINANC FEYZIROBERTS LOREN P
    • G01V5/14E21B47/00G06F19/00
    • G01V5/107
    • An apparatus and method for estimating at least one parameter of interest of an earth formation including an estimation of the parameter of interest using a time- dependent ratio of information obtained from at least one neutron detector through the exposure of the earth formation to a radiation source, particularly a pulsed nuclear source. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method. Also, an apparatus and method for estimating at least one parameter of interest of an earth formation including an estimation of the parameter of interest using a first component and a second component of an information set obtained using a single radiation detector.
    • 一种用于使用从至少一个中子检测器通过将地球暴露于辐射源获得的信息的时间依赖比来估计地球地层的至少一个感兴趣参数的装置和方法,其包括感兴趣参数的估计 ,特别是脉冲核源。 该装置包括具有程序的处理器和存储子系统,当被执行时,该程序实现该方法。 而且,一种用于使用单个辐射检测器获得的信息集合的第一分量和第二分量来估计地球地层感兴趣的至少一个参数的装置和方法,包括对感兴趣参数的估计。
    • 6. 发明申请
    • LITHOLOGY PAIR RATIO: A RATIO-BASED LITHOLOGY INDICATOR USING PAIR PRODUCTION
    • 岩性对比:基于比值的岩性指标的对产生
    • WO2011094691A3
    • 2011-11-17
    • PCT/US2011023181
    • 2011-01-31
    • BAKER HUGHES INCROBERTS LOREN P
    • ROBERTS LOREN P
    • G01V5/12E21B47/00
    • G01V5/104
    • The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating a formation lithology parameter. The method may include using gamma ray count or count rate information to estimate a formation lithology parameter that may be one of, but not limited to: Z2/A, bulk density, Z2*bulk density/A, linear attenuation coefficients, and porosity. The method may include using time-dependent ratios with a pulsed radiation source. The method may also include dividing gamma ray information by time and/or by energy window. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method.
    • 本公开涉及用于使用核辐射来估计地层属性的井眼测井方法和设备,具体地涉及用于估计地层岩性参数的设备和方法。 该方法可以包括使用伽马射线计数或计数率信息来估计地层岩性参数,该地层岩性参数可以是以下之一但不限于:Z2 / A,体积密度,Z2 *体积密度/ A,线性衰减系数和孔隙度。 该方法可以包括使用脉冲辐射源的时间相关比率。 该方法还可以包括按时间和/或通过能量窗口划分伽马射线信息。 该设备包括具有程序的处理器和存储子系统,该程序在被执行时实施该方法。