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11. 发明授权

US06307199B1 Compensation of errors in logging-while-drilling density measurements 有权
标题翻译：记录钻井密度测量中的误差补偿
公开(公告)号：US06307199B1
公开(公告)日：2001-10-23
申请号：US09310893
申请日：1999-05-12
申请人： John E. Edwards , Robert A. Adolph , W. Robert Sloan
发明人： John E. Edwards , Robert A. Adolph , W. Robert Sloan
IPC分类号： G01V100
CPC分类号： E21B47/08 , G01V5/125
摘要： A system is disclosed for compensating well logs for adverse effects of the borehole and near borehole formation effects. The system is configured primarily for processing logging-while-drilling (LWD) density measurements, and includes means for generating a one-dimensional density log which is corrected for adverse effects of logging tool standoff and “dipping” beds penetrated by the borehole. The system is, however, applicable to any type of LWD or other type of logging system which requires borehole corrections, and which responds to variations in formation properties in a plane perpendicular to the borehole. The system can also be modified to include LWD apparatus using sensors that require no borehole corrections, and only require corrections for dipping beds. The system is ideally suited for logging equipment using two sensors, but can be modified for use with single sensor systems or systems using more than two sensors.
摘要翻译：公开了一种用于补偿测井的井筒的不利影响和近井眼形成效应的系统。该系统主要用于处理钻井测井（LWD）密度测量，并且包括用于生成一维密度测井的装置，其被校正用于测井工具分离的不利影响和钻孔渗透的“浸渍”床。然而，该系统适用于需要钻孔校正的任何类型的LWD或其他类型的测井系统，其响应垂直于钻孔的平面中的地层特性的变化。该系统也可以被修改为包括使用不需要钻孔校正的传感器的LWD装置，并且仅需要对浸渍床进行校正。该系统非常适用于使用两个传感器记录设备，但可以修改为使用单个传感器系统或使用两个以上传感器的系统。

12. 发明授权

US5132540A Dead time correction and regulation method and apparatus for nuclear spectroscopy 失效
标题翻译：死亡时间校正和调节方法和核子光谱仪器
公开(公告)号：US5132540A
公开(公告)日：1992-07-21
申请号：US711599
申请日：1991-06-06
申请人： Robert A. Adolph , Bradley A. Roscoe
发明人： Robert A. Adolph , Bradley A. Roscoe
IPC分类号： G01T1/17
CPC分类号： G01T1/171
摘要： A nuclear spectroscopy method and apparatus for the analysis of a signal comprising pulses representative of random nuclear events, and for the determination of the dead time, including counting and recording, versus time, the accumulated counts of the pile-up events (PU), i.e. events identified as being characteristic of two or more overlapping events, and the counts of non pile-up events (NPU), for each of successive time intervals of a measurement cycle. Particularly the method includes: forming a preliminary reference plot of the PU count rates versus the NPU count rates; forming an actual plot corresponding to the signal under analysis, of PU count rates versus NPU count rates; and deducing the dead time from comparison between actual and reference plots. In an alternative embodiment, the method allows one to maintain constant the dead time, during the signal analysis, by: establishing a preliminary relationship between dead time and different plots of PU count rates versus NPU count rates; establishing a preliminary relationship between the plots and a functioning parameter; establishing a reference plot corresponding to an imposed dead time; establishing an actual plot; comparing the actual and reference plots; and modifying the functioning parameter so as to bring the respective actual and reference plots in compliance.

13. 发明授权

US08594265B2 Methods for controlling ion beam and target voltage in a neutron generator for improved performance 有权
标题翻译：用于控制中子发生器中的离子束和目标电压的方法，以提高性能
公开(公告)号：US08594265B2
公开(公告)日：2013-11-26
申请号：US12040272
申请日：2008-02-29
申请人： Luke T. Perkins , Peter Wraight , Wolfgang P. Ziegler , Robert A. Adolph
发明人： Luke T. Perkins , Peter Wraight , Wolfgang P. Ziegler , Robert A. Adolph
IPC分类号： G21G4/02 , G01V5/10 , H05H6/00
CPC分类号： H05H3/06 , G01V5/10
摘要： A method for operating a pulsed neutron generator includes adjusting a target current of the neutron generator to a preselected value. A parameter related to a neutron output of the neutron generator is measured. A target voltage of the neutron generator is adjusted to maintain the measured parameter within a predetermined range.
摘要翻译：用于操作脉冲中子发生器的方法包括将中子发生器的目标电流调节到预选值。测量与中子发生器的中子输出有关的参数。调整中子发生器的目标电压以将测量参数保持在预定范围内。

14. 发明申请

US20090045328A1 Thermal Neutron Porosity from Neutron Slowing-Down Length, Formation Thermal Neutron Capture Cross Section, and Bulk Density 有权
标题翻译：来自中子的热中子孔隙率下降长度，形成热中子捕获截面积和体积密度
公开(公告)号：US20090045328A1
公开(公告)日：2009-02-19
申请号：US11839608
申请日：2007-08-16
申请人： Scott H. Fricke , Robert A. Adolph , Mike Evans
发明人： Scott H. Fricke , Robert A. Adolph , Mike Evans
IPC分类号： G01V5/10
CPC分类号： G01V5/107
摘要： A method for determining at least one formation property calculated from neutron measurements acquired with a downhole tool includes emitting neutrons from a source in the tool into the formation, detecting neutrons with at least one detector in the downhole tool, calculating a first slowing-down length (L1) based on the detected neutrons, and deriving a second slowing-down length (L2) based on the first slowing-down length (L1). Further steps include deriving a correlation function for relating slowing-down lengths from a first tool to slowing-down lengths associated with a different source, wherein the correlation function depends on formation properties such as bulk density; and applying the correlation function to the slowing-down length of the first tool to derive the slowing-down length of the second tool. A method for determining a thermal neutron formation porosity based on a slowing-down length from epithermal neutron measurements from an electronic neutron source includes converting the slowing-down length into a computed neutron slowing-down length from thermal neutron measurements from a chemical neutron source, wherein the converting uses a correlation function that depends on formation bulk density; deriving a thermal neutron countrate ratio based on the computed neutron slowing-down length, wherein the deriving uses a function that depends on the formation bulk density and formation sigma; and computing the thermal neutron formation porosity from the thermal neutron countrate ratio.
摘要翻译：用于确定由井下工具获取的中子测量计算的至少一个地层特性的方法包括从工具中的源将地层中子发射到地层中，用井下工具中的至少一个检测器检测中子，计算第一减速长度（L1），并且基于第一减速长度（L1）导出第二减速长度（L2）。进一步的步骤包括导出相关函数，用于将来自第一工具的减速长度与与不同源相关联的减速长度相关联，其中所述相关函数取决于地层特性，例如体积密度; 以及将所述相关函数应用于所述第一工具的减速长度以导出所述第二工具的减速长度。基于来自电子中子源的超热中子测量的基于减速长度确定热中子形成孔隙的方法包括将来自化学中子源的热中子测量的减速长度转换成计算的中子减速长度，其中所述转换使用取决于地层堆积密度的相关函数; 基于计算的中子减速长度导出热中子剂量比，其中导出使用取决于地层堆积密度和形成σ的函数; 并从热中子计数比计算热中子形成孔隙度。

15. 发明授权

US06703606B2 Neutron burst timing method and system for multiple measurement pulsed neutron formation evaluation 有权
标题翻译：中子爆发定时方法和多测量脉冲中子形成评估系统
公开(公告)号：US06703606B2
公开(公告)日：2004-03-09
申请号：US09929680
申请日：2001-08-14
申请人： Robert A. Adolph
发明人： Robert A. Adolph
IPC分类号： G01V510
CPC分类号： G01V5/107 , G01V5/104
摘要： A method is disclosed for measuring neutron interaction properties of an earth formation. The method includes irradiating the formation with bursts of high energy neutrons. The bursts have a duration selected to enable detection of short duration burst related phenomena. After at least one of the bursts, short duration burst related phenomena are measured. After a selected number of the bursts, long duration neutron burst-related phenomena are detected. In some embodiments, the short duration burst related phenomena include at least one of inelastic gamma ray related phenomena, neutron slowing down related phenomena and short capture cross section related phenomena.
摘要翻译：公开了一种用于测量地层的中子相互作用特性的方法。该方法包括用高能中子的脉冲辐射地层。脉冲串具有选择的持续时间以便能够检测短时间脉冲串相关现象。在至少一个脉冲串之后，测量短时间脉冲串相关现象。在选定数量的脉冲串之后，检测到长时间中子爆发相关现象。在一些实施例中，短持续时间脉冲串相关现象包括非弹性γ射线相关现象，中子减慢相关现象和短捕获截面相关现象中的至少一个。

16. 发明授权

US09575189B2 Segmented radiation detector and apparatus and method for using same 有权
标题翻译：分段辐射探测器及其使用方法
公开(公告)号：US09575189B2
公开(公告)日：2017-02-21
申请号：US13881589
申请日：2011-10-28
申请人： Joel L. Groves , Patrice Ligneul , Robert A. Adolph , Paul Wanjau , Tim Quinlan , Jack Purcell
发明人： Joel L. Groves , Patrice Ligneul , Robert A. Adolph , Paul Wanjau , Tim Quinlan , Jack Purcell
IPC分类号： G01V5/00 , G01T1/20 , G01V5/12
CPC分类号： G01T1/2006 , G01T1/20 , G01V5/12 , G01V5/125
摘要： Systems, methods, and devices involving segmented radiation detectors are provided. For example, a segmented radiation detector may include a segmented scintillator and an optical-to-electrical converter. The segmented scintillator may have several segments that convert radiation to light, at least one of which may detect radiation arriving from an azimuthal angle around an axis of the segmented scintillator. The optical-to-electrical converter may be coupled to the segmented scintillator. The optical-to-electrical converter may receive the light from the segments of the segmented scintillator and output respective electrical signals corresponding to the amount of radiation detected by each segment.
摘要翻译：提供了涉及分段辐射探测器的系统，方法和设备。例如，分段辐射检测器可以包括分段闪烁器和光电转换器。分段闪烁器可以具有将辐射转换成光的几个段，其中至少一个可以检测围绕分段的闪烁体的轴的方位角到达的辐射。光电转换器可以耦合到分段的闪烁体。光电转换器可以接收来自分段闪烁器的段的光，并输出对应于由每个段检测到的辐射量的相应电信号。

17. 发明授权

US06944548B2 Formation evaluation through azimuthal measurements 有权
标题翻译：通过方位测量进行形成评估
公开(公告)号：US06944548B2
公开(公告)日：2005-09-13
申请号：US10331747
申请日：2002-12-30
申请人： Richard J. Radtke , Michael L. Evans , Robert A. Adolph , Loïc Vildé , Nihal Ian Wijeyesekera
发明人： Richard J. Radtke , Michael L. Evans , Robert A. Adolph , Loïc Vildé , Nihal Ian Wijeyesekera
IPC分类号： E21B47/026 , G01V5/10 , G01V5/12
CPC分类号： G01V5/104 , E21B47/026 , G01V5/125
摘要： A method for formation logging includes acquiring measurements of neutron-induced signals having azimuthal information using a neutron tool; processing the measurements into a plurality of azimuthal sector data for each acquisition interval; and deriving a selected parameter from the plurality of azimuthal sector data. A logging tool includes a housing adapted to move in a borehole; a circuitry having memories for storing neutron-induced measurements; a neutron source disposed in the housing; and at least one detector bank disposed in the housing spaced apart from the neutron source, wherein each of the at least one detector bank comprises at least one detector disposed around a periphery of the housing such that the at least one detector is more sensitive to signals from an azimuthal direction, and wherein count rates detected by each of the at least one detector are separately stored in the memories.
摘要翻译：用于地层测井的方法包括采用中子工具获取具有方位信息的中子诱导信号的测量; 将测量值处理为每个采集间隔的多个方位扇区数据; 以及从所述多个方位角扇区数据中导出所选择的参数。测井工具包括适于在钻孔中移动的壳体; 具有用于存储中子诱导测量的存储器的电路; 设置在壳体中的中子源; 以及设置在所述壳体中与所述中子源间隔开的至少一个检测器组，其中所述至少一个检测器组中的每一个包括围绕所述壳体的外围设置的至少一个检测器，使得所述至少一个检测器对信号更敏感并且其中由所述至少一个检测器中的每一个检测到的计数率分别存储在所述存储器中。

18. 发明授权

US06754586B1 Apparatus and methods for monitoring output from pulsed neutron sources 有权
标题翻译：用于监测来自脉冲中子源的输出的装置和方法
公开(公告)号：US06754586B1
公开(公告)日：2004-06-22
申请号：US10249297
申请日：2003-03-28
申请人： Robert A. Adolph , Loïc Vildé
发明人： Robert A. Adolph , Loïc Vildé
IPC分类号： G01V5101
CPC分类号： G01V5/10
摘要： Techniques for monitoring a pulsed neutron source include measuring a burst count rate while the pulsed neutron source is turned on using a monitor detector disposed proximate the pulsed neutron source; measuring a decay count rate while the neutron source is turned off using the monitor detector; and deriving a source strength indicator from the burst count rate and the decay count rate. A pulsed neutron tool includes a tool body; a pulsed neutron source disposed in the tool body; a monitor detector disposed in the tool body proximate the pulsed neutron source; at least one measurement detector disposed in the tool body at a predetermined distance from the pulsed neutron source; and circuitry disposed in the tool body for controlling the pulsed neutron source, the monitor detector, and the at least one measurement detector.
摘要翻译：用于监测脉冲中子源的技术包括在使用靠近脉冲中子源设置的监视器检测器来打开脉冲中子源时测量脉冲串计数率; 使用监视器检测器测量中子源关闭时的衰减计数率; 并从突发计数率和衰减计数率导出源强度指示符。脉冲中子工具包括工具主体; 设置在工具主体中的脉冲中子源; 监视器检测器，设置在靠近脉冲中子源的工具主体中; 至少一个测量探测器，设置在与脉冲中子源预定距离的工具主体中; 以及设置在所述工具主体中用于控制所述脉冲中子源，所述监视器检测器和所述至少一个测量检测器的电路。

19. 发明授权

US06649906B2 Method and apparatus for safely operating radiation generators in while-drilling and while-tripping applications 有权
公开(公告)号：US06649906B2
公开(公告)日：2003-11-18
申请号：US09932502
申请日：2001-08-17
申请人： Robert A. Adolph , Loïc Vildé , Nancy S. Borkowski , Patrick J. Fisseler
发明人： Robert A. Adolph , Loïc Vildé , Nancy S. Borkowski , Patrick J. Fisseler
IPC分类号： G01V508
CPC分类号： G01V5/101
摘要： A method is disclosed for operating a well logging tool having a controllable radiation source operatively coupled to a power source. The method includes monitoring at least one condition in a wellbore, and operatively disconnecting the power source from the radiation source when the at least one condition changes. Also disclosed is a downhole measurement assembly, which includes a radiation source, a power source, and at least one interlock operatively connected between the power source and the radiation source, where the at least one interlock is adapted to selectively arm and disarm the radiation source.

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