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公开(公告)号：US20120092006A1
公开(公告)日：2012-04-19
申请号：US12907707
申请日：2010-10-19
申请人： Lilong Li , Songhua Chen , Carl M. Edwards , Joo Tim Ong
发明人： Lilong Li , Songhua Chen , Carl M. Edwards , Joo Tim Ong
IPC分类号： G01R33/44
CPC分类号： G01R33/56308 , G01N24/081 , G01N24/082 , G01R33/445 , G01R33/563 , G01V3/14
摘要： A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. A first velocity distribution is obtained for a first set of nuclei in the fluid from a Nuclear Magnetic Resonance (NMR) signal received for the fluid in response to a first NMR excitation signal. A second velocity distribution is obtained for a second set of nuclei in the fluid from an NMR signal received for the fluid in response to a second NMR excitation signal. A velocity of the phase is estimated from the first velocity distribution and the second velocity distribution. The flow rate of the phase is estimated using the estimated velocity of the phase and an estimated volume fraction of the phase.
摘要翻译： 公开了一种用于估计多相流体的相的流量的方法和装置。 对于针对第一个NMR激发信号的流体接收的核磁共振（NMR）信号，对于流体中的第一组核获得第一速度分布。 从针对第二次NMR激发信号的流体接收到的NMR信号，获得流体中第二组核的第二速度分布。 从第一速度分布和第二速度分布估计相位的速度。 使用相的估计速度和相的估计体积分数来估计相的流速。
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2.发明授权Nuclear magnetic resonance 1H and 13C multiphase flow measurements, estimating phase selected flow rates from velocity distributions, volume fractions, and mean velocity 有权核磁共振1H和13C多相流测量，从速度分布，体积分数和平均速度估计相选择的流速公开(公告)号：US08729893B2
公开(公告)日：2014-05-20
申请号：US12907707
申请日：2010-10-19
申请人： Lilong Li , Songhua Chen , Carl M. Edwards , Joo Tim Ong
发明人： Lilong Li , Songhua Chen , Carl M. Edwards , Joo Tim Ong
IPC分类号： G01R33/563 , G01N24/08 , G01V3/14 , G01R33/44
CPC分类号： G01R33/56308 , G01N24/081 , G01N24/082 , G01R33/445 , G01R33/563 , G01V3/14
摘要： A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. A first velocity distribution is obtained for a first set of nuclei in the fluid from a Nuclear Magnetic Resonance (NMR) signal received for the fluid in response to a first NMR excitation signal. A second velocity distribution is obtained for a second set of nuclei in the fluid from an NMR signal received for the fluid in response to a second NMR excitation signal. A velocity of the phase is estimated from the first velocity distribution and the second velocity distribution. The flow rate of the phase is estimated using the estimated velocity of the phase and an estimated volume fraction of the phase.
摘要翻译： 公开了一种用于估计多相流体的相的流量的方法和装置。 对于针对第一个NMR激发信号的流体接收的核磁共振（NMR）信号，对于流体中的第一组核获得第一速度分布。 从针对第二次NMR激发信号的流体接收到的NMR信号，获得流体中第二组核的第二速度分布。 从第一速度分布和第二速度分布估计相位的速度。 使用相的估计速度和相的估计体积分数来估计相的流速。
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公开(公告)号：US20120092007A1
公开(公告)日：2012-04-19
申请号：US12971740
申请日：2010-12-17
申请人： Lilong Li , Songhua Chen , Carl M. Edwards
发明人： Lilong Li , Songhua Chen , Carl M. Edwards
CPC分类号： G01N24/081 , G01F1/716 , G01F1/74 , G01N24/082 , G01R33/445
摘要： A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. In the first method, nuclei in the fluid are polarized over two distances and a measured magnetization gives the relative fraction of two components of the fluid for a selected velocity. In the second method, nuclei in the fluid are polarized over a specified distance and measurements of the decay of spin echo signals is used to give the relative fraction of two components of the fluid for the selected velocity.
摘要翻译： 公开了一种用于估计多相流体的相的流量的方法和装置。 在第一种方法中，流体中的核在两个距离上被极化，并且测量的磁化给出了所选流速的流体的两个分量的相对分数。 在第二种方法中，流体中的核在一定距离上被极化，并且使用自旋回波信号衰减的测量值来给出所选速度的流体的两个分量的相对分数。
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公开(公告)号：US08633689B2
公开(公告)日：2014-01-21
申请号：US12971740
申请日：2010-12-17
申请人： Lilong Li , Songhua Chen , Carl M. Edwards
发明人： Lilong Li , Songhua Chen , Carl M. Edwards
IPC分类号： G01V3/00
CPC分类号： G01N24/081 , G01F1/716 , G01F1/74 , G01N24/082 , G01R33/445
摘要： A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. In the first method, nuclei in the fluid are polarized over two distances and a measured magnetization gives the relative fraction of two components of the fluid for a selected velocity. In the second method, nuclei in the fluid are polarized over a specified distance and measurements of the decay of spin echo signals is used to give the relative fraction of two components of the fluid for the selected velocity.
摘要翻译： 公开了一种用于估计多相流体的相的流量的方法和装置。 在第一种方法中，流体中的核在两个距离上被极化，并且测量的磁化给出了所选流速的流体的两个分量的相对分数。 在第二种方法中，流体中的核在一定距离上被极化，并且使用自旋回波信号衰减的测量值来给出所选速度的流体的两个分量的相对分数。
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公开(公告)号：US20130018602A1
公开(公告)日：2013-01-17
申请号：US13180902
申请日：2011-07-12
IPC分类号： G01F1/58
CPC分类号： F17D5/02 , G01F1/58 , G01F1/716 , G01F1/74 , G01N24/081 , G01R33/0047 , G01R33/383 , G01R33/56308
摘要： An apparatus and method for estimating a parameter of a fluid flowing in a tubular is disclosed. A source of a primary magnetic field is coupled to the tubular and is configured to induce the primary magnetic field in the fluid to align nuclei of the fluid in the tubular along the primary magnetic field. A transmitter transmits an excitation signal into the fluid. A receiver detects a signal from the aligned nuclei responsive to the excitation signal. A processor estimates the parameter of the fluid from the detected signal. The source of the primary magnetic field is removable from the tubular. A coil may induce a secondary magnetic field to either enhance the strength of the primary magnetic field in the tubular or substantially cancel the primary magnetic field in the tubular, for example, to reduce particle build-up in the tubular.
摘要翻译： 公开了一种用于估计在管状体中流动的流体的参数的装置和方法。 主磁场的源耦合到管状物并被配置成诱导流体中的初级磁场沿着主磁场对准管中的流体的核。 发射器将激励信号发射到流体中。 接收机根据激励信号检测来自对准的核的信号。 处理器根据检测到的信号估计流体的参数。 初级磁场的来源可以从管状物中取出。 线圈可以引起次级磁场以增强管中的初级磁场的强度或基本上消除管中的初级磁场，例如以减少管中的颗粒积聚。
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公开(公告)号：US09121550B2
公开(公告)日：2015-09-01
申请号：US13180902
申请日：2011-07-12
IPC分类号： G01F1/58 , F17D5/02 , G01F1/716 , G01F1/74 , G01R33/383 , G01R33/563 , G01R33/00 , G01N24/08
CPC分类号： F17D5/02 , G01F1/58 , G01F1/716 , G01F1/74 , G01N24/081 , G01R33/0047 , G01R33/383 , G01R33/56308
摘要： An apparatus and method for estimating a parameter of a fluid flowing in a tubular is disclosed. A source of a primary magnetic field is coupled to the tubular and is configured to induce the primary magnetic field in the fluid to align nuclei of the fluid in the tubular along the primary magnetic field. A transmitter transmits an excitation signal into the fluid. A receiver detects a signal from the aligned nuclei responsive to the excitation signal. A processor estimates the parameter of the fluid from the detected signal. The source of the primary magnetic field is removable from the tubular. A coil may induce a secondary magnetic field to either enhance the strength of the primary magnetic field in the tubular or substantially cancel the primary magnetic field in the tubular, for example, to reduce particle build-up in the tubular.
摘要翻译： 公开了一种用于估计在管状体中流动的流体的参数的装置和方法。 主磁场的源耦合到管状物并被配置成诱导流体中的初级磁场沿着主磁场对准管中的流体的核。 发射器将激励信号发射到流体中。 接收机根据激励信号检测来自对准的核的信号。 处理器根据检测到的信号估计流体的参数。 初级磁场的来源可以从管状物中取出。 线圈可以引起次级磁场以增强管中的初级磁场的强度或基本上消除管中的初级磁场，例如以减少管中的颗粒积聚。
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7.发明授权Objective oriented methods for NMR log acquisitions for estimating earth formation and fluid properties 有权用于估算地层和流体性质的NMR测井采集的面向目标的方法公开(公告)号：US06972564B2
公开(公告)日：2005-12-06
申请号：US10288115
申请日：2002-11-05
申请人： Songhua Chen , Carl M. Edwards
发明人： Songhua Chen , Carl M. Edwards
CPC分类号： G01N24/081 , G01V3/32
摘要： An objective oriented NMR logging method selects pulse sequences over a plurality of frequencies from a set of building blocks. The building blocks include trainlet sequences wherein each trainlet comprises an excitation pulse and a plurality of refocusing pulses, the total length of a trainlet being typically less than 10 ms. Another building block is a short CPMG or modified CPMG sequence and yet another building block is a regular CPMG or modified CPMG sequence. The modified CPMG sequences may have refocusing pulses with a tipping angle less than 180° to reduce the power consumption. Based on the logging objective (formation evaluation or FE, FE plus hydrocarbon typing, FE plus gas evaluation) the building blocks are combined at a plurality of frequencies with different wait times and TEs.
摘要翻译： 一种面向目标的NMR测井方法从一组结构单元中选择多个频率上的脉冲序列。 构建块包括列车序列，其中每个列车包括激励脉冲和多个重新聚焦脉冲，列车的总长度通常小于10ms。 另一个构建块是短CPMG或修改CPMG序列，而另一个构建块是常规CPMG或修改CPMG序列。 修改的CPMG序列可以具有小于180°的倾翻角的重聚焦脉冲以降低功耗。 基于测井目标（地层评估或FE，FE加烃类型，FE加气评估），构建块以不同的等待时间和TE的多个频率组合。
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8.发明授权Method and apparatus for formation evaluation and borehole size determination 有权用于地层评估和钻孔尺寸确定的方法和装置公开(公告)号：US07425827B2
公开(公告)日：2008-09-16
申请号：US11541227
申请日：2006-09-29
申请人： Songhua Chen , Carl M. Edwards , Thomas Kruspe , Martin Blanz , Holger F. Thern , David R. Beard
发明人： Songhua Chen , Carl M. Edwards , Thomas Kruspe , Martin Blanz , Holger F. Thern , David R. Beard
IPC分类号： G01V3/00
摘要： The quality factor of a NMR-antenna depends upon mud conductivity, formation resistivity and the borehole size. The Q of the antenna is measured. From measurement of one of formation conductivity or borehole size, the other can be determined.
摘要翻译： NMR天线的质量因素取决于泥浆导电性，地层电阻率和钻孔尺寸。 测量天线的Q值。 从测量地层导电率或钻孔尺寸之一，可以确定另一个。
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9.发明授权公开(公告)号：US09316761B2
公开(公告)日：2016-04-19
申请号：US13357786
申请日：2012-01-25
摘要： An apparatus and method for estimating reservoir connectivity using gravity estimates at a fluid contact for each of two or more boreholes. The method may include identifying fluid contacts in the boreholes. The method may include additional gravity estimates at and/or between a well head and the fluid contact of each borehole. The method may include gravity estimates along a surface between well heads of the boreholes. The method may include estimating true vertical depth for the boreholes. The apparatus may include at least one gravimeter and a processor configured to estimate reservoir connectivity using estimates from the gravimeter.
摘要翻译： 一种用于使用两个或更多个钻孔中的每一个的流体接触处的重力估计来估计储层连通性的装置和方法。 该方法可以包括识别钻孔中的流体接触。 该方法可以包括在井头和每个钻孔的流体接触之间和/或之间的额外的重力估计。 该方法可以包括沿着钻孔的井头之间的表面的重力估计。 该方法可以包括估计钻孔的真实垂直深度。 该装置可以包括至少一个重力计和配置成使用来自重力仪的估计来估计储层连接性的处理器。
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公开(公告)号：US20090126486A1
公开(公告)日：2009-05-21
申请号：US11943200
申请日：2007-11-20
申请人： Daniel T. Georgi , Carl M. Edwards , Sheng Fang , Rocco DiFoggio , Robert Estes
发明人： Daniel T. Georgi , Carl M. Edwards , Sheng Fang , Rocco DiFoggio , Robert Estes
IPC分类号： G01V7/00
CPC分类号： G01V7/16
摘要： An instrument for measuring gravitational acceleration, the instrument including: a plurality of accelerometers disposed about a three-dimensional structure, the plurality of accelerometers providing output used for measuring the gravitational acceleration; wherein each accelerometer in the plurality is implemented by at least one of a micro-electromechanical system (MEMS) and a nano-electromechanical system (NEMS).
摘要翻译： 一种用于测量重力加速度的仪器，所述仪器包括：围绕三维结构设置的多个加速度计，所述多个加速度计提供用于测量重力加速度的输出; 其中多个中的每个加速度计由微机电系统（MEMS）和纳米机电系统（NEMS）中的至少一个来实现。
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