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公开(公告)号：US07372018B2
公开(公告)日：2008-05-13
申请号：US11189514
申请日：2005-07-26
IPC分类号： G01V5/10
CPC分类号： G01V5/101
摘要： A pulsed neutron tool with three or more detectors is used for making measurements inside casing. The measurements may be used to determine gas saturation at a constant gas pressure, pressure at constant gas saturation, or to determine both gas saturation and gas pressure.
摘要翻译： 具有三个或更多个检测器的脉冲中子工具用于在壳体内进行测量。 测量值可用于确定恒定气体压力，恒定气体饱和压力下的气体饱和度，或确定气体饱和度和气体压力。
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公开(公告)号：US5404752A
公开(公告)日：1995-04-11
申请号：US127945
申请日：1993-09-28
申请人： David M. Chace , Darryl E. Trcka
发明人： David M. Chace , Darryl E. Trcka
CPC分类号： G01P5/18 , E21B47/1015
摘要： This disclosure provides a method for measuring the velocities of water volumes flowing co-directionally in separate conduits nested such as in injection or production well-bores. The method allows an oxygen activation measurement of the velocity of the water flow in the tubing-casing annulus in the presence of water flowing in the tubing string in the same direction. The method allows continuous logging at variable or constant cable velocities or stationary logging. Based on the method of velocity gauging, the method isolates the signal from the annular flow and can produce a continuous log of linear and volumetric annular flow rates with depth.
摘要翻译： 本公开提供了一种用于测量在诸如注射或生产井眼中的分离的管道中共同方向流动的水体积的速度的方法。 该方法允许在存在以相同方向在管柱中流动的水的情况下，氧气活化测量管 - 套管环中的水流的速度。 该方法允许以可变或恒定的电缆速度或静态日志记录进行连续记录。 基于速度测量的方法，该方法将信号与环流分离，并可以产生具有深度的线性和体积环流量的连续对数。
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公开(公告)号：US07227129B2
公开(公告)日：2007-06-05
申请号：US11158500
申请日：2005-06-22
IPC分类号： G01V5/10
CPC分类号： E21B47/1015 , E21B43/126 , E21B47/0005 , G01F1/7088 , G01P5/20
摘要： A pulsed neutron source irradiates an earth formation. The irradiation produces N16 from O16 in a fluid in the borehole, and the gamma rays produced by the subsequent decay of N16 are detected by a plurality of spaced apart detectors. The count rates of the detectors are accumulated over a time sampling interval to produce temporal signals. Processing of the temporal signals using correlation, differentiation and/or semblance techniques is used for determination of the flow velocity of one or more fluids in the borehole.
摘要翻译： 脉冲中子源照射地层。 照射在钻孔中的流体中从O 16产生N 16，并且检测由随后的N 16衰变产生的γ射线 通过多个间隔开的检测器。 检测器的计数率在时间采样间隔内累积以产生时间信号。 使用相关，微分和/或相似性技术处理时间信号用于确定钻孔中一种或多种流体的流速。
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公开(公告)号：US07186971B2
公开(公告)日：2007-03-06
申请号：US10879620
申请日：2004-06-29
IPC分类号： G01V5/10
CPC分类号： E21B47/1015 , E21B43/126 , E21B47/0005 , G01F1/7088 , G01P5/20
摘要： A pulsed neutron source irradiates an earth formation. The irradiation produces N16 from O16 in a fluid in the borehole, and the gamma rays produced by the subsequent decay of N16 are detected by a plurality of spaced apart detectors. The count rates of the detectors are accumulated over a time sampling interval to produce temporal signals. Processing of the temporal signals using correlation, differentiation and/or semblance techniques is used for determination of the flow velocity of one or more fluids in the borehole.
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5.发明授权Method and apparatus for measuring volumetric water flow rates in highly inclined wellbores 失效用于测量高倾斜井筒体积水流量的方法和装置
公开(公告)号：US5949069A
公开(公告)日：1999-09-07
申请号：US970253
申请日：1997-11-14
申请人： David M. Chace , Darryl E. Trcka , Rene W. Mayer
发明人： David M. Chace , Darryl E. Trcka , Rene W. Mayer
CPC分类号： E21B49/087 , E21B47/1015 , G01F1/7042 , G01N22/00
摘要： A method for determining a volume fraction of water moving in a predetermined direction along a highly inclined conduit. The method includes measuring a fractional volume of water occupying the conduit at a plurality of locations along the conduit. An oxygen activation velocity of the water flowing in the conduit is determined at a plurality of locations along the conduit. A counting rate of a gamma ray detector used to measure oxygen activation is normalized with respect to the measured fractional volume of water. The normalized count rates of the gamma ray detector are characterized with respect to a relative velocity between the water and the detector. The step of characterizing is performed in portions of the conduit which are sloped so that gravity acts on the water along the predetermined direction. A fraction of the characterized counting rate represented by the oxygen activation counting rates measured along the conduit is determined. The fraction represents the fractional volume of water moving in the predetermined direction.
摘要翻译： 一种用于确定沿着高度倾斜的导管沿预定方向移动的水的体积分数的方法。 该方法包括测量沿着导管在多个位置处占据导管的水的分数体积。 在导管的多个位置确定在导管中流动的水的氧活化速度。 用于测量氧激活的伽马射线检测器的计数率相对于测量的水分数体积被归一化。 相对于水和检测器之间的相对速度来表征伽马射线探测器的归一化计数率。 特征化的步骤在导管的部分倾斜的部分进行，使得重力沿预定方向作用在水面上。 确定由导管测量的氧激活计数率所表征的计数速度的一部分。 分数表示在预定方向上移动的水的分数体积。
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公开(公告)号：US10324224B2
公开(公告)日：2019-06-18
申请号：US13223539
申请日：2011-09-01
IPC分类号： G01V5/10
摘要： The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating amounts of silicon and/or oxygen in the formation. The method may include using nuclear radiation information from at least one nuclear radiation detector to estimate at least one parameter of interest. The method may include separating a gross nuclear radiation count into separate nuclear radiation components. The method may also include reducing an error in the estimated formation properties due to speed variations of a nuclear radiation source that activates the silicon and oxygen in the formation. The apparatus may include at least one nuclear radiation detector. The apparatuses may include an information processing device to perform the methods.
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公开(公告)号：US08525103B2
公开(公告)日：2013-09-03
申请号：US13033775
申请日：2011-02-24
申请人： David M. Chace , Rafay Z. Ansari , Elton Frost, Jr. , Feyzi Inanc , W. Allen Gilchrist, Jr. , Randy L. Evans
发明人： David M. Chace , Rafay Z. Ansari , Elton Frost, Jr. , Feyzi Inanc , W. Allen Gilchrist, Jr. , Randy L. Evans
IPC分类号： G01V5/10
CPC分类号： G01V5/04
摘要： A method for estimating a property of an earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the formation with neutrons from a neutron source disposed at the carrier; detecting a first signal from the formation due to the irradiating using a first radiation detector, the first signal being related to a saturation of a fluid in the formation; detecting a second signal from an element in the formation due to the irradiating using a second radiation detector, the second signal being related to an element emitting the second signal in the formation; and estimating the property from the first signal and the second signal.
摘要翻译： 一种用于估计地层的性质的方法，所述方法包括：通过穿过所述地层的钻孔输送载体; 用设置在载体上的中子源用中子照射地层; 由于使用第一辐射检测器的照射，检测来自地层的第一信号，第一信号与地层中的流体饱和有关; 由于使用第二辐射检测器的照射，从地层中的元件检测第二信号，所述第二信号与在地层中发射第二信号的元件有关; 以及从第一信号和第二信号估计特性。
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公开(公告)号：US20090050322A1
公开(公告)日：2009-02-26
申请号：US11841062
申请日：2007-08-20
IPC分类号： E21B43/116 , E21B43/11
CPC分类号： E21B43/1185 , E21B43/11852 , E21B47/12
摘要： A perforating system and method for wellbore perforating. The system comprises a perforating string having a perforating gun with shaped charges, a communication module for receiving detonation signals, and a controller associated with each perforating gun. The module receives surface signals for gun detonation and wirelessly transmits the signals to selected guns via the associated controllers.
摘要翻译： 用于井眼穿孔的穿孔系统和方法。 该系统包括具有成形电荷的穿孔枪的穿孔线，用于接收爆震信号的通信模块和与每个射孔枪相关联的控制器。 该模块接收喷枪爆震的表面信号，并通过相关的控制器将信号无线传输到选定的枪。
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9.发明申请DENSITY MEASUREMENTS USING DETECTORS ON A PULSED NEUTRON MEASUREMENT PLATFORM 有权使用检测器对脉冲中子测量平台进行的密度测量公开(公告)号：US20160320523A1
公开(公告)日：2016-11-03
申请号：US14699910
申请日：2015-04-29
摘要： An apparatus for estimating a property of an earth formation and a borehole fluid includes a carrier configured to be disposed in a borehole, and a pulsed neutron measurement assembly including a pulsed neutron source configured to emit neutrons into the borehole and the earth formation, and a gamma ray detector. The apparatus also includes a fluid density measurement assembly including the gamma ray detector and a gamma ray source configured to irradiate a borehole fluid with gamma rays. The gamma ray detector is positioned relative to the gamma ray source to detect both of: gamma rays resulting from neutron interactions and gamma rays emitted from the borehole fluid in response to irradiation from the gamma ray source. The apparatus further includes a processor configured to differentiate a pulsed neutron gamma ray spectrum associated with the interactions from a density gamma ray spectrum.
摘要翻译： 用于估计地层和井眼流体的性质的装置包括构造成设置在钻孔中的载体，以及包括构造成将中子发射到井眼和地层中的脉冲中子源的脉冲中子测量组件，以及 伽马射线探测器 该装置还包括流体密度测量组件，其包括伽马射线检测器和被配置为用伽马射线照射钻孔流体的伽马射线源。 伽马射线检测器相对于伽马射线源定位以检测由中子相互作用产生的γ射线和响应于来自伽马射线源的照射从井眼流体发射的γ射线。 该装置还包括处理器，其被配置为区分与来自密度伽马射线光谱的相互作用相关联的脉冲中子伽马射线谱。
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10.发明授权Simultaneous ultrasonic cross-correlation and transit time measurements for multiphase flow rate analysis 有权用于多相流速分析的同时超声互相关和通量时间测量公开(公告)号：US08978481B2
公开(公告)日：2015-03-17
申请号：US13227289
申请日：2011-09-07
CPC分类号： G01F1/74 , E21B47/101 , G01F1/662 , G01F1/667
摘要： Pairs of acoustic transducers positioned at different radial distances in a conduit are used to measure travel times of acoustic signals in opposite directions and inclined to the direction of a fluid flow in the borehole. These contrapropagation measurements are used to estimate fluid velocity and volumetric flow rates of the fluid components in the conduit.
摘要翻译： 在导管中定位在不同径向距离处的成对的声换能器用于测量声信号在相反方向上的行进时间并且倾斜于钻孔中的流体流动的方向。 这些对照测量用于估计导管中流体组分的流体速度和体积流量。
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