公开(公告)号：US20130191030A1

公开(公告)日：2013-07-25

申请号：US13357786

申请日：2012-01-25

Applicant: Carl M. Edwards ,  Daniel T. Georgi ,  Antonius M. Loermans

Inventor： Carl M. Edwards ,  Daniel T. Georgi ,  Antonius M. Loermans

IPC: G06F19/00 ,  G01V7/06

CPC classification number: G01V7/06 ,  G06F17/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120271549A1

公开(公告)日：2012-10-25

申请号：US13449788

申请日：2012-04-18

Applicant: Carl M. Edwards ,  Antonius M. Loermans

Inventor： Carl M. Edwards ,  Antonius M. Loermans

IPC: G01V7/02 ,  G06F19/00

CPC classification number: G01V7/00 ,  G01V2210/622

Abstract: 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.

Abstract translation: 本公开涉及用于获取地层的多分量重力信息的方法和装置。 更具体地，本公开涉及使用配置为生成多分量重力信息的至少一个重力计量来估计地层中的流体的运动。 该方法可以包括估计地层中的密度变化。 该方法可以包括估计至少一个重力仪的位置。 该装置可以包括被配置为估计每个矢量分量的重力矢量的多分量重力仪。

公开(公告)号：US07425827B2

公开(公告)日：2008-09-16

申请号：US11541227

申请日：2006-09-29

Applicant: Songhua Chen ,  Carl M. Edwards ,  Thomas Kruspe ,  Martin Blanz ,  Holger F. Thern ,  David R. Beard

Inventor： Songhua Chen ,  Carl M. Edwards ,  Thomas Kruspe ,  Martin Blanz ,  Holger F. Thern ,  David R. Beard

IPC: G01V3/00

CPC classification number: G01V3/30 ,  G01V3/32

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07295005B2

公开(公告)日：2007-11-13

申请号：US11322731

申请日：2005-12-30

Applicant: Carl M. Edwards

Inventor： Carl M. Edwards

IPC: G01V3/00

CPC classification number: G01V3/32

Abstract: NMR measurements are made with a MWD tool having azimuthal sensitivity. The permanent magnet may be a U-shaped magnet or may have an opposed pair of magnets with axial orientation. The tool is designed for pulsing with short sequences for estimating BVI and CBW and minimizes the effect of tool motion.

Abstract translation: NMR测量使用具有方位灵敏度的MWD工具进行。 永磁体可以是U形磁体，或者可以具有相对的一对具有轴向取向的磁体。 该工具设计用于短序列脉冲，用于估计BVI和CBW，并最大限度地减少刀具运动的影响。

公开(公告)号：US07142985B2

公开(公告)日：2006-11-28

申请号：US10926810

申请日：2004-08-26

Applicant: Carl M. Edwards

Inventor： Carl M. Edwards

IPC: G00V1/40 ,  G06F19/00

CPC classification number: G01V9/00

Abstract: Wireline depths are estimated using cable depth measurements and accelerometer depth measurements made over a time interval encompassing the time for which the wireline depth is being estimated. A least squares smoothing filter or a weighted least squares smoothing filter may be used. Problems caused by washouts in the borehole are also addressed.

Abstract translation: 使用电缆深度测量和加速度计深度测量来估计有线深度，时间间隔包括估计电缆深度的时间。 可以使用最小二乘平滑滤波器或加权最小二乘平滑滤波器。 钻孔中的冲洗造成的问题也得到解决。

公开(公告)号：US06518755B2

公开(公告)日：2003-02-11

申请号：US09829574

申请日：2001-04-10

Applicant: Carl M. Edwards

Inventor： Carl M. Edwards

IPC: G01V300

CPC classification number: G01V3/32 ,  G01N24/081

Abstract: Using phase-alternate pairs to eliminate the effects of ringing requires a large running average for multi-frequency NMR logging tools. At logging speeds greater than about five ft/min, the resolution may become unacceptable. An important realization is that field-shifting need only occur between two sensitive volumes to make sequential CPMG sequences a phase-alternate pair. Additional sensitive volumes can be obtained using the standard frequency-shifting approach. Thus, a substantial decrease in power is possible. The present invention uses a side-looking gradient NMR logging tool with 12 different sensitive volumes. An auxiliary electromagnet winding is placed so that the plane of the winding is substantially parallel to the symmetry axis of the permanent magnet configuration. The electromagnet is switched on and a CPMG sequence is performed. Immediately following this sequence the current in the electromagnet winding is reversed and a second CPMG sequence is acquired. The data from these two sequences comprise a phase-alternate pair and are combined using standard methods. The electromagnet current is sufficient to prevent the overlap of the sensitive volumes. The operating frequency of the tool can be switched and the process repeated until data from all the required sensitive volumes are acquired.

公开(公告)号：US20220075090A1

公开(公告)日：2022-03-10

申请号：US17015872

申请日：2020-09-09

Applicant: Carl M. Edwards ,  Marc Stephen Ramirez ,  Otto Fanini ,  Stanislav Forgang

Inventor： Carl M. Edwards ,  Marc Stephen Ramirez ,  Otto Fanini ,  Stanislav Forgang

IPC: G01V3/32 ,  G01R33/38 ,  G01R33/383 ,  G01R33/36 ,  G01R33/34

Abstract: An apparatus for performing a nuclear magnetic resonance (NMR) measurement in a borehole penetrating a subsurface formation includes an NMR tool having an outside diameter that is less than an inside diameter of a drill tubular disposed in the borehole, the drill tubular having an opening at the distal end of the drill tubular leading into the borehole, and a retaining device configured to allow at least a section of the NMR tool to protrude through the opening of the drill tubular and prevent an unrestrained release of the NMR tool through the opening. The apparatus also includes a transmitter antenna and a receiver antenna coupled to the NMR tool, wherein the transmitter antenna and/or the receiver antenna are extendable from the NMR tool.

公开(公告)号：US20170212144A1

公开(公告)日：2017-07-27

申请号：US15007752

申请日：2016-01-27

Applicant: Robert W. Adams ,  Carl M. Edwards ,  Sebastian Csutak ,  Felix Wellmann ,  Otto Fanini

Inventor： Robert W. Adams ,  Carl M. Edwards ,  Sebastian Csutak ,  Felix Wellmann ,  Otto Fanini

IPC: G01P15/03 ,  G01V7/00 ,  G01P1/00

CPC classification number: G01P15/03 ,  G01H9/00 ,  G01P1/006 ,  G01P15/093 ,  G01P21/00 ,  G01V7/00 ,  G01V2210/1429

Abstract: An apparatus for measuring acceleration includes: a reference cavity having a first fixed reflecting surface and a second fixed reflecting surface; a sense cavity having a fixed reflecting surface and a non-fixed reflecting surface, the non-fixed reflecting surface being configured to be displaced when subject to an acceleration force; a light source to illuminate the reference and sense cavities; a controller to vary a wavelength of light emitted by the light source and/or an index of refraction of an optical medium of the cavities; a photodetector to detect light emitted by the reference and sense cavities; an interferometer sensor to measure using the detected light, for each variation of the wavelength of light and/or the index of refraction a reference displacement of the reference cavity and a sense displacement of the sense cavity; and a processor to calculate the acceleration using each of the reference displacements and the sense displacements.

公开(公告)号：US09568640B2

公开(公告)日：2017-02-14

申请号：US14486018

申请日：2014-09-15

Applicant: Sebastian Csutak ,  Carl M. Edwards

Inventor： Sebastian Csutak ,  Carl M. Edwards

IPC: G01B9/02 ,  G01L1/24 ,  G01V7/00 ,  G01V1/16 ,  G01V8/12

CPC classification number: G01V7/00 ,  G01V1/162 ,  G01V8/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140225607A1

公开(公告)日：2014-08-14

申请号：US13765414

申请日：2013-02-12

Applicant: Carl M. Edwards ,  Jinhong Chen

Inventor： Carl M. Edwards ,  Jinhong Chen

IPC: G01V3/32

CPC classification number: G01V3/32 ,  G01N24/081 ,  G01R33/20

Abstract: A method for estimating a property of subsurface material includes extracting a sample of the material using a downhole formation tester and performing a plurality of nuclear magnetic resonance (NMR) measurements on a sensitive volume in the sample where each measurement in the plurality is performed in a static homogeneous magnetic field with a pulsed magnetic field gradient that is different in magnitude from other NMR measurements to provide a waveform signal. The method further includes transforming each received waveform signal from a time domain into a frequency domain and comparing the frequency domain signal to a reference to provide proton chemical-shift information related to a chemical property of one or more molecules in the sample and transforming the frequency domain signals into a complex number domain that quantifies waveform signal amplitude changes to provide one or more diffusion rates with each diffusion rate being associated with a corresponding frequency.

Abstract translation: 用于估计地下材料性质的方法包括使用井下成形测试仪提取材料样品，并在样品中的敏感体积上进行多个核磁共振（NMR）测量，其中多个测量中的每个测量在 具有脉冲磁场梯度的静态均匀磁场，其幅度与其他NMR测量值不同以提供波形信号。 该方法还包括将每个接收到的波形信号从时域变换为频域，并将频域信号与参考值进行比较，以提供与样品中一个或多个分子的化学特性相关的质子化学位移信息，并将频率 域信号转换成复数域，其量化波形信号幅度变化以提供一个或多个扩散速率，其中每个扩散速率与相应的频率相关联。