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1. 发明申请

US20200292477A1 NANO-PARTICLE DETECTION OF CHEMICAL TRACE AMOUNTS IN DOWNHOLE NMR FLUID ANALYZER 审中-公开
公开(公告)号：US20200292477A1
公开(公告)日：2020-09-17
申请号：US16353704
申请日：2019-03-14
申请人： Carl M. Edwards , Stewart Brazil
发明人： Carl M. Edwards , Stewart Brazil
IPC分类号： G01N24/08 , E21B47/01 , E21B49/08
摘要： An apparatus for detecting a chemical of interest in a fluid sample includes a sample chamber and a nano-particle injection device configured to inject functionalized magnetic nano-particles and optionally non-functionalized magnetic nano-particles into the fluid sample. The functionalized magnetic nano-particles include a plurality of bits of a reactor chemical spread out and separated from each other over a surface of each of the functionalized magnetic nano-particles for at least one of aggregating and disaggregating the functionalized magnetic nano-particles by binding or reacting to the chemical of interest in the fluid sample and the non-functionalized magnetic nano-particles do not include the plurality of bits. The apparatus also includes a nuclear magnetic resonance (NMR) instrument configured to perform an NMR measurement on the fluid sample having the functionalized magnetic nano-particles to provide first NMR data and a controller configured to detect the chemical of interest using the first NMR data.

2. 发明授权

US09651708B2 Method of mapping reservoir fluid movement using gravity sensors 有权
公开(公告)号：US09651708B2
公开(公告)日：2017-05-16
申请号：US13449788
申请日：2012-04-18
申请人： Carl M. Edwards , Antonius M. Loermans
发明人： Carl M. Edwards , Antonius M. Loermans
IPC分类号： G01V7/00
CPC分类号： G01V7/00 , G01V2210/622
摘要： The present disclosure relates to methods and apparatuses for acquiring multi-component gravity information for an earth formation. More particularly, the present disclosure relates to estimating the movement of fluid in an earth formation using at least one gravimeter configured to generate multi-component gravity information. The method may include estimating density changes in the earth formation. The method may include estimating a position of the at least one gravimeter. The apparatus may include a multi-component gravimeter configured to estimate gravity vectors for each vector component.

3. 发明申请

US20160077235A1 DISPLACEMENT MEASUREMENTS USING SIMULATED MULTI-WAVELENGTH LIGHT SOURCES 有权
标题翻译：使用模拟多波长光源的位移测量
公开(公告)号：US20160077235A1
公开(公告)日：2016-03-17
申请号：US14486018
申请日：2014-09-15
申请人： Sebastian Csutak , Carl M. Edwards
发明人： Sebastian Csutak , Carl M. Edwards
IPC分类号： G01V7/02 , G01V8/10
CPC分类号： G01V7/00 , G01V1/162 , G01V8/12
摘要： An embodiment of an apparatus for estimating a parameter includes a multi-wavelength electromagnetic source configured to emit electromagnetic radiation beams having multiple wavelengths at a fixed angle relative to an interferometer, the multi-wavelength source having a stabilizer configured to lock each beam to one of a plurality of discrete wavelength ranges. The apparatus also includes the interferometer, which has a fixed reference reflector and a moveable reflecting assembly coupled to a moveable mass, the mass configured to move in response to the parameter. The apparatus further includes a detector configured to detect an interference pattern generated by the interferometer for each beam, and a processor configured to combine the interference patterns and estimate the parameter based on the combined interference pattern.
摘要翻译：用于估计参数的设备的实施例包括被配置为相对于干涉仪以固定角度发射具有多个波长的电磁辐射束的多波长电磁源，所述多波长源具有被配置为将每个波束锁定到多个离散的波长范围。该装置还包括干涉仪，其具有固定的参考反射器和耦合到可移动质量块的可移动反射组件，所述质量被配置为响应于该参数而移动。该装置还包括检测器，其被配置为检测由干涉仪针对每个波束产生的干涉图案，以及处理器，被配置为组合干涉图案并基于组合的干涉图案来估计参数。

4. 发明授权

US08720286B2 Temperature insensitive devices and methods for making same 有权
标题翻译：温度不敏感的设备及其制作方法
公开(公告)号：US08720286B2
公开(公告)日：2014-05-13
申请号：US12939280
申请日：2010-11-04
申请人： Carl M. Edwards , Dustin Carr
发明人： Carl M. Edwards , Dustin Carr
IPC分类号： G01L1/08
CPC分类号： E21B47/011
摘要： An apparatus and method for estimating a parameter of interest using a force responsive element comprising, at least in part, a balanced material. The balanced material is temperature insensitive over a specified range of temperatures such that the force responsive element may estimate the parameter of interest by responding to a desired force with relatively little interference due to temperature changes within the specified range of temperatures.
摘要翻译：一种用于使用力响应元件估计感兴趣参数的装置和方法，该力响应元件至少部分地包括平衡材料。平衡材料在特定的温度范围内是温度不敏感的，使得力响应元件可以通过响应期望的力来估计感兴趣的参数，由于在指定温度范围内的温度变化具有相对较小的干扰。

5. 发明申请

US20120092006A1 Multiphase Flow Measurement Using Nuclear Magnetic Resonance 有权
标题翻译：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。

6. 发明授权

US08131494B2 Rotatable orientation independent gravity sensor and methods for correcting systematic errors 失效
标题翻译：可旋转取向独立重力传感器和校正系统误差的方法
公开(公告)号：US08131494B2
公开(公告)日：2012-03-06
申请号：US12328181
申请日：2008-12-04
申请人： Daniel T. Georgi , Carl M. Edwards , Sheng Fang , Rocco DiFoggio , Robert A. Estes
发明人： Daniel T. Georgi , Carl M. Edwards , Sheng Fang , Rocco DiFoggio , Robert A. Estes
IPC分类号： G01R35/00
CPC分类号： G01P15/093 , G01P15/18 , G01P21/00 , G01P2015/0814 , G01V7/00
摘要： A method to correct for a systematic error of a sensor having a plurality of accelerometers configured to measure gravitational acceleration, the method including: rotating the plurality of accelerometers about a first axis; obtaining a first set of calibration measurements from the plurality of accelerometers from the rotation about the first axis; determining a first systematic error for each accelerometer in the plurality using the first set of calibration measurements; and removing the first systematic error from sensor measurements to correct for the systematic error.
摘要翻译：一种用于校正具有被配置为测量重力加速度的多个加速度计的传感器的系统误差的方法，所述方法包括：围绕第一轴旋转所述多个加速度计; 从围绕第一轴的旋转获得来自多个加速度计的第一组校准测量; 使用所述第一组校准测量来确定所述多个中的每个加速度计的第一系统误差; 并从传感器测量中去除第一个系统误差，以纠正系统误差。

7. 发明授权

US07116103B2 Nuclear magnetic resonance method and apparatus for evaluating a characteristic of a region 有权
标题翻译：用于评估区域特性的核磁共振法和装置
公开(公告)号：US07116103B2
公开(公告)日：2006-10-03
申请号：US10967733
申请日：2004-10-18
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： G01N24/081 , G01V3/32
摘要： A method of evaluating a characteristic of a fluid in a region, and a nuclear magnetic resonance (NMR) well logging apparatus for the implementation thereof, is disclosed. A magnetic field gradient is applied to the region, and first and second sequences of magnetic field gradient is applied to the region, with the second sequence differing in a pulse characteristic from the first sequence. A magnetization spectrum resulting from each of the sequences of pulse is captured, and a change in the magnetization spectrum resulting from the first and second sequences of pulses is analyzed to extract information about the fluid.
摘要翻译：公开了一种评价区域中的流体的特性的方法和用于实施的核磁共振（NMR）测井装置。对该区域施加磁场梯度，并且将第一和第二磁场梯度序列施加到该区域，其中第二序列与来自第一序列的脉冲特性不同。捕获从每个脉冲序列产生的磁化谱，并且分析由第一和第二脉冲序列产生的磁化谱的变化以提取关于流体的信息。

8. 发明授权

US06972564B2 Objective oriented methods for NMR log acquisitions for estimating earth formation and fluid properties 有权
标题翻译：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。

9. 发明授权

US06720765B2 High-resolution high-speed NMR well logging device 失效
标题翻译：高分辨率高速NMR测井装置
公开(公告)号：US06720765B2
公开(公告)日：2004-04-13
申请号：US09870287
申请日：2001-05-30
申请人： Carl M. Edwards , Daniel T. Georgi
发明人： Carl M. Edwards , Daniel T. Georgi
IPC分类号： G01V300
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.
摘要翻译：有线NMR测井测量具有不良的垂直分辨率，测井速度小于20英尺/分钟，功耗超过200W的缺点。尽管存在这些缺点，但是使用NMR测井是因为它能够为一些难以从其他有线数据获得的岩石物理参数。这些包括地层中流体的体积不可约（BVI）的估计。本发明针对BVI和粘土结合水（CBW）测量。记录速度高达60英尺/分，可以很少或没有损失分辨率。在一个优选实施例中，该工具具有围绕测井工具周向分布且与钻孔壁接触的四个传感器。使用马蹄形磁铁来产生静磁场。磁极被设计成使得磁场是均匀的垂直的工具运动，并且提供足够大的静态场的范围以为岩层中的结合水提供极化。传感器的RF部分包括至少一个线圈，其被配置为将RF磁场传输到岩层中，并且至少两个线圈被配置成从地层分别接收NMR信号。在另一个实施例中，线圈缠绕在极片或铁轭上，用于场移位以使得能够获取相位交替测量。

10. 发明授权

US5585720A Signal processing method for multiexponentially decaying signals and application to nuclear magnetic resonance well logging tools 失效
标题翻译：用于多指数衰减信号的信号处理方法和应用于核磁共振测井工具
公开(公告)号：US5585720A
公开(公告)日：1996-12-17
申请号：US546742
申请日：1995-10-23
申请人： Carl M. Edwards
发明人： Carl M. Edwards
IPC分类号： G01R33/44 , G01R33/46 , G01R33/48
CPC分类号： G01R33/4625
摘要： A method of reducing bias error in nuclear magneic resonance (NMR) spin-echo signals. The method includes filtering the signals using a filter having a bandwidth inversely related to the length of time from the initiation of the measurement of the NMR signals. In a preferred embodiment, the NMR spin-echo signal measurements are filtered using a moving average filter having an averaging span which increases with respect to the time elapsed from initiation of the spin-echo measurement sequence.
摘要翻译：一种降低核磁共振（NMR）自旋回波信号偏移误差的方法。该方法包括使用具有与从NMR信号测量开始开始的时间长度成反比的带宽的滤波器对信号进行滤波。在优选实施例中，使用具有相对于自旋回波测量序列开始所经过的时间而增加的平均跨度的移动平均滤波器来过滤NMR自旋回波信号测量。

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