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    NMR Flow Metering Using Velocity Selection and Remote Detection
    1.
    发明申请
    NMR Flow Metering Using Velocity Selection and Remote Detection 有权
    使用速度选择和远程检测的NMR流量计

    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

    IPC分类号： G01R33/44 ,  G01F1/56

    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。

    Multiphase Flow Measurement Using Nuclear Magnetic Resonance
    2.
    发明申请
    Multiphase Flow Measurement Using Nuclear Magnetic Resonance 有权
    使用核磁共振的多相流测量

    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。

    Objective oriented methods for NMR log acquisitions for estimating earth formation and fluid properties
    3.
    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

    IPC分类号： G01R33/44 ,  G01V3/32 ,  G01V3/00

    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。

    NMR flow metering using velocity selection and remote detection
    5.
    发明授权
    NMR flow metering using velocity selection and remote detection 有权
    使用速度选择和远程检测的NMR流量计

    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。

    Determining reservoir connectivity using fluid contact gravity measurements
    7.
    发明授权
    Determining reservoir connectivity using fluid contact gravity measurements 有权
    使用流体接触重力测量确定油藏连通性

    公开(公告)号：US09316761B2

    公开(公告)日：2016-04-19

    申请号：US13357786

    申请日：2012-01-25

    申请人： Carl M. Edwards ,  Daniel T. Georgi ,  Antonius M. Loermans

    发明人： Carl M. Edwards ,  Daniel T. Georgi ,  Antonius M. Loermans

    IPC分类号： G01V7/06 ,  G06F17/00

    CPC分类号： G01V7/06 ,  G06F17/00

    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。

    Design and Apparatus of a Magnetic Resonance Multiphase Flow Meter
    8.
    发明申请
    Design and Apparatus of a Magnetic Resonance Multiphase Flow Meter 有权
    磁共振多相流量计的设计与设计

    公开(公告)号：US20130018602A1

    公开(公告)日：2013-01-17

    申请号：US13180902

    申请日：2011-07-12

    申请人： Joo Tim Ong ,  Terry R. Bussear ,  Carl M. Edwards ,  Graeme S. Young

    发明人： Joo Tim Ong ,  Terry R. Bussear ,  Carl M. Edwards ,  Graeme S. Young

    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。

    ORIENTATION INDEPENDENT GRAVITY SENSOR
    9.
    发明申请
    ORIENTATION INDEPENDENT GRAVITY SENSOR 审中-公开
    方位独立重量传感器

    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。

    High-resolution high-speed NMR well logging device
    10.
    发明授权
    High-resolution high-speed NMR well logging device 有权

    公开(公告)号：US07012426B2

    公开(公告)日：2006-03-14

    申请号：US10765611

    申请日：2004-01-27

    申请人： Carl M. Edwards ,  Daniel T. Georgi

    发明人： Carl M. Edwards ,  Daniel T. Georgi

    IPC分类号： G01V3/00

    CPC分类号： G01V3/32 ,  G01N24/081 ,  G01R33/383 ,  Y02A90/344

    摘要： Wireline NMR well logging measurements suffer from disadvantages of poor vertical resolution, logging speeds less than 20 ft/min, and power consumption in excess of 200 W. In spite of these disadvantages, NMR well logging is used because it is capable of providing estimates for a number of petrophysical parameters that are difficult to obtain from other wireline data. These include estimates of the bulk volume irreducible (BVI) of fluids in the formation. The present invention targets BVI and clay bound water (CBW) measurements. Logging speeds of up to 60 ft/min are attainable with little or no loss of resolution. In one preferred embodiment, the tool has four sensors circumferentially distributed around the logging tool and in contact with the borehole wall. A horseshoe like magnet is used to generate the static magnetic field. The magnet poles are designed such that the magnetic field is uniform perpendicular tool motion, as well as provide a sufficiently large extent of the static field to provide polarization for bound water in rock formations. The RF portion of the sensor is comprised of at least one coil configured for transmission of an RF magnetic field into rock formations and at least two coils configured to separately receive the NMR signal from the formation. In another embodiment a coil is wound around the pole pieces or the iron yoke for the purpose of field shifting to enable acquisition of phase-alternated measurements.