公开(公告)号：US20050261835A1

公开(公告)日：2005-11-24

申请号：US10848407

申请日：2004-05-18

申请人： Canyun Wang

发明人： Canyun Wang

IPC分类号： G01V1/30 ,  G01V1/48 ,  G01V1/50 ,  G06F19/00

CPC分类号： G01V1/50 ,  G01V1/48

摘要： Methods and related apparatus for generating dispersion curves and conducting shear slowness logging are set forth. The methods include backpropagating detected dispersive waveforms in the Fourier domain while accounting for dispersion in an anisotropic and inhomogeneous formation, and stacking the processed waveforms. The stacking may occur in the frequency or time domains. The semblance of the stacked and windowed waveforms is compared against the detected waveforms. In accounting for dispersion during backpropagation, a plurality of parameters which describe dispersion curves are varied over ranges in order to optimize semblance. At each depth of interest, it is then possible to obtain a dispersion curve of greatest semblance. Where both an x-dipole and y-dipole are used to generate the waves, a dispersion curve of greatest semblance for each may be generated. In addition, from the dispersion curves, formation shear slowness(es) may be plotted as a function of formation depth and orientation.

摘要翻译： 阐述了生成分散曲线和进行剪切慢度测井的方法和相关装置。 这些方法包括在傅立叶域中反向传播检测到的色散波形，同时考虑各向异性和不均匀形成中的色散，并堆叠处理的波形。 堆叠可能发生在频域或时域。 将堆叠和加窗波形的外观与检测到的波形进行比较。 为了解释反向传播过程中的色散，描述色散曲线的多个参数在范围之间变化，以便优化外观。 在每个感兴趣的深度，可以获得最大相似度的色散曲线。 在使用x-偶极子和y-偶极子来产生波形的情况下，可以产生每一个最大相似度的色散曲线。 此外，从分散曲线可以将地层剪切速度（es）绘制为地层深度和取向的函数。

公开(公告)号：US07120541B2

公开(公告)日：2006-10-10

申请号：US10848407

申请日：2004-05-18

申请人： Canyun Wang

发明人： Canyun Wang

IPC分类号： G01V1/28

CPC分类号： G01V1/50 ,  G01V1/48

摘要： Methods and related apparatus for generating dispersion curves and conducting shear slowness logging are set forth. The methods include backpropagating detected dispersive waveforms in the Fourier domain while accounting for dispersion in an anisotropic and inhomogeneous formation, and stacking the processed waveforms. The stacking may occur in the frequency or time domains. The semblance of the stacked and windowed waveforms is compared against the detected waveforms. In accounting for dispersion during backpropagation, a plurality of parameters which describe dispersion curves are varied over ranges in order to optimize semblance. At each depth of interest, it is then possible to obtain a dispersion curve of greatest semblance. Where both an x-dipole and y-dipole are used to generate the waves, a dispersion curve of greatest semblance for each may be generated. In addition, from the dispersion curves, formation shear slowness(es) may be plotted as a function of formation depth and orientation.

摘要翻译： 阐述了生成分散曲线和进行剪切慢度测井的方法和相关装置。 这些方法包括在傅立叶域中反向传播检测到的色散波形，同时考虑各向异性和不均匀形成中的色散，并堆叠处理的波形。 堆叠可能发生在频域或时域。 将堆叠和加窗波形的外观与检测到的波形进行比较。 为了解释反向传播过程中的色散，描述色散曲线的多个参数在范围之间变化，以便优化外观。 在每个感兴趣的深度，可以获得最大相似度的色散曲线。 在使用x-偶极子和y-偶极子来产生波形的情况下，可以产生每一个最大相似度的色散曲线。 此外，从分散曲线可以将地层剪切速度（es）绘制为地层深度和取向的函数。

公开(公告)号：US09477002B2

公开(公告)日：2016-10-25

申请号：US12430914

申请日：2009-04-28

申请人： Douglas E. Miller ,  Ahmad Latifzai ,  Romain Charles Andre Prioul ,  Bruce A. MacKay ,  Oliver C. Mullins ,  Andreas Hausot ,  Canyun Wang ,  Alireza Farahani

发明人： Douglas E. Miller ,  Ahmad Latifzai ,  Romain Charles Andre Prioul ,  Bruce A. MacKay ,  Oliver C. Mullins ,  Andreas Hausot ,  Canyun Wang ,  Alireza Farahani

IPC分类号： G01V1/46 ,  E21B33/124 ,  E21B43/26 ,  E21B47/10

CPC分类号： G01V1/46 ,  E21B33/124 ,  E21B43/26 ,  E21B47/101

摘要： Methods and related systems are described for measuring acoustic signals in a borehole during a fracturing operation. The system includes a downhole toolstring designed and adapted for deployment in a borehole formed within a subterranean rock formation. A downhole rock fracturing tool opens and propagates a fracture in the subterranean rock formation. Dipole and/or quadrupole acoustic sources transmit acoustic energy into the subterranean rock formation. A receiver array measures acoustic energy traveling through the subterranean rock formation before, during and after the fracture induction. Geophones mounted on extendable arms can be used to measure shear wave acoustic energy travelling in the rock formation. The toolstring can be constructed such that the sources and receivers straddle the fracture zone during the fracturing. Alternatively, the sources or the receivers can co-located axially with the fracture zone, or the toolstring can be repositioned following fracturing such that the fracture zone is between the acoustic sources and receivers.

摘要翻译： 描述了用于在压裂操作期间测量井眼中的声信号的方法和相关系统。 该系统包括设计并适于部署在形成于地下岩层内的钻孔中的井下工具串。 井下岩石压裂工具打开并传播地下岩层中的裂缝。 偶极和/或四极声源将声能传递到地下岩层中。 接收器阵列测量在断裂诱导之前，之中和之后穿过地下岩层的声能。 安装在可伸缩臂上的地震检波器可用于测量在岩层中行进的剪切波声能。 可以构造工具串，使得源和接收器在压裂期间跨越断裂带。 或者，源或接收器可以与断裂区域轴向共定位，或者在压裂之后可以重新定位工具串，使得断裂区域在声源和接收器之间。

公开(公告)号：US20100157737A1

公开(公告)日：2010-06-24

申请号：US12430914

申请日：2009-04-28

申请人： DOUGLAS E. MILLER ,  AHMAD LATIFZAI ,  ROMAIN CHARLES ANDRE PRIOUL ,  BRUCE A. MACKAY ,  OLIVER C. MULLINS ,  ANDREAS HAUSOT ,  CANYUN WANG ,  ALIREZA FARAHANI

发明人： DOUGLAS E. MILLER ,  AHMAD LATIFZAI ,  ROMAIN CHARLES ANDRE PRIOUL ,  BRUCE A. MACKAY ,  OLIVER C. MULLINS ,  ANDREAS HAUSOT ,  CANYUN WANG ,  ALIREZA FARAHANI

IPC分类号： G01S1/72 ,  G01V1/00

CPC分类号： G01V1/46 ,  E21B33/124 ,  E21B43/26 ,  E21B47/101

摘要： Methods and related systems are described for measuring acoustic signals in a borehole during a fracturing operation. The system includes a downhole toolstring designed and adapted for deployment in a borehole formed within a subterranean rock formation. A downhole rock fracturing tool opens and propagates a fracture in the subterranean rock formation. Dipole and/or quadrupole acoustic sources transmit acoustic energy into the subterranean rock formation. A receiver array measures acoustic energy traveling through the subterranean rock formation before, during and after the fracture induction. Geophones mounted on extendable arms can be used to measure shear wave acoustic energy travelling in the rock formation. The toolstring can be constructed such that the sources and receivers straddle the fracture zone during the fracturing. Alternatively, the sources or the receivers can co-located axially with the fracture zone, or the toolstring can be repositioned following fracturing such that the fracture zone is between the acoustic sources and receivers.

摘要翻译： 描述了用于在压裂操作期间测量井眼中的声信号的方法和相关系统。 该系统包括设计并适于部署在形成于地下岩层内的钻孔中的井下工具串。 井下岩石压裂工具打开并传播地下岩层中的裂缝。 偶极和/或四极声源将声能传递到地下岩层中。 接收器阵列测量在断裂诱导之前，之中和之后穿过地下岩层的声能。 安装在可伸缩臂上的地震检波器可用于测量在岩层中行进的剪切波声能。 可以构造工具串，使得源和接收器在压裂期间跨越断裂带。 或者，源或接收器可以与断裂区域轴向共定位，或者在压裂之后可以重新定位工具串，使得断裂区域在声源和接收器之间。

公开(公告)号：US06868036B2

公开(公告)日：2005-03-15

申请号：US10290617

申请日：2002-11-08

申请人： Canyun Wang ,  Jahir Pabon

发明人： Canyun Wang ,  Jahir Pabon

IPC分类号： G01V1/52 ,  G01V1/00

CPC分类号： G01V1/52 ,  G01V1/523 ,  Y10S367/911

摘要： An acoustic logging tool includes external baffle assemblies forming a waveguide structure at the acoustic source. The logging tool is designed for acoustic logging of earth formation surrounding a borehole. The external baffle assemblies form a waveguide structure that is designed to increase signal to noise ratio in an acoustic logging tool using dipole or other acoustic waves. In a preferred embodiment, the acoustic logging tool includes an elongated transmitter module, and a receiver sonde having a linear array of acoustic receivers. The transmitter module includes first and second cylindrical masses spaced apart along the axis by first and second spacers. The first cylindrical mass defines a first circular facing surface and a first cylindrical outer surface. The second cylindrical mass defines a second circular facing surface and a second cylindrical outer surface. A multi-pole acoustic source is fixedly mounted between the first and second circular facing surfaces, and located on the transmitter module axis between the first and second spacers. A first annular baffle assembly surrounding the first cylindrical outer surface has a first annular facing surface co-planar with the first circular facing surface. A second annular baffle assembly surrounding the second cylindrical outer surface has a second annular facing surface co-planar with the second circular facing surface. The annular baffle assemblies form an acoustic waveguide.

摘要翻译： 声学测井工具包括在声源处形成波导结构的外部挡板组件。 测井工具设计用于围绕钻孔的地层的声波测井。 外部挡板组件形成波导结构，其被设计为在使用偶极或其它声波的声学测井工具中增加信噪比。 在优选实施例中，声学测井工具包括细长的发射器模块和具有声学接收器的线性阵列的接收器探头。 发射器模块包括通过第一和第二间隔物沿轴线间隔开的第一和第二圆柱形质量块。 第一圆柱形物质限定第一圆形面对表面和第一圆柱形外表面。 第二圆柱形物质限定第二圆形面对表面和第二圆柱形外表面。 多极声源固定地安装在第一和第二圆形面对表面之间，并且位于第一和第二间隔物之间​​的发射器模块轴上。 围绕第一圆柱形外表面的第一环形挡板组件具有与第一圆形面对表面共面的第一环形面对表面。 围绕第二圆柱形外表面的第二环形挡板组件具有与第二圆形面对表面共面的第二环形面对表面。 环形挡板组件形成声波导。