公开(公告)号：US20090009036A1

公开(公告)日：2009-01-08

申请号：US11772244

申请日：2007-07-02

申请人： NORIYUKI MATSUMOTO ,  TSUTOMU YAMATE ,  BIKASH SINHA ,  SHIGERU SATO ,  ANTHONY FRANK VENERUSO ,  JIMMY LAWRENCE ,  YVES BARRIOL ,  SHIGEO DAITO

发明人： NORIYUKI MATSUMOTO ,  TSUTOMU YAMATE ,  BIKASH SINHA ,  SHIGERU SATO ,  ANTHONY FRANK VENERUSO ,  JIMMY LAWRENCE ,  YVES BARRIOL ,  SHIGEO DAITO

IPC分类号： H01L41/053

CPC分类号： G01L9/0022 ,  G01L19/04 ,  H03H9/02023 ,  H03H9/02133

摘要： A pressure transducer for high-pressure measurements comprising a housing and a piezoelectric resonator located in the housing, wherein the resonator comprises double rotation cut piezoelectric material configured or designed for vibrating in the fundamental tone of dual modes of the fast and slow thickness-shear vibrations.

摘要翻译： 一种用于高压测量的压力传感器，包括壳体和位于壳体中的压电谐振器，其中谐振器包括双旋转切割压电材料，其被配置或设计用于在快速和慢速厚度剪切振动的双重模式的基本色调中振动 。

公开(公告)号：US08831923B2

公开(公告)日：2014-09-09

申请号：US12892336

申请日：2010-09-28

申请人： Ting Lei ,  Bikash Sinha

发明人： Ting Lei ,  Bikash Sinha

IPC分类号： G06G7/48 ,  G06G7/57 ,  G01V1/48

CPC分类号： G01V1/48

摘要： Described is method and system of determining horizontal stress from radial profiles of dipole shear together with the far-field estimate of the Stoneley shear modulus. The system and method include selecting an optimal number of regression points on measured radial profiles for obtaining reliable estimation of maximum and minimum horizontal stress magnitudes in the presence of noisy data, where measured radial profiles of dipole shear moduli might exhibit a small amount of random fluctuations.

摘要翻译： 描述了确定偶极剪切的径向剖面的水平应力的方法和系统以及斯通利剪切模量的远场估计。 该系统和方法包括在测量的径向剖面上选择最佳数量的回归点，以便在存在噪声数据的情况下获得最大和最小水平应力幅度的可靠估计，其中测量的偶极剪切模量的径向轮廓可能表现出少量的随机波动 。

公开(公告)号：US20110077920A1

公开(公告)日：2011-03-31

申请号：US12892336

申请日：2010-09-28

申请人： Ting Lei ,  Bikash Sinha

发明人： Ting Lei ,  Bikash Sinha

IPC分类号： G06F7/60 ,  G06F17/10

CPC分类号： G01V1/48

摘要： Described is method and system of determining horizontal stress from radial profiles of dipole shear together with the far-field estimate of the Stoneley shear modulus. The system and method include selecting an optimal number of regression points on measured radial profiles for obtaining reliable estimation of maximum and minimum horizontal stress magnitudes in the presence of noisy data, where measured radial profiles of dipole shear moduli might exhibit a small amount of random fluctuations.

摘要翻译： 描述了确定偶极剪切的径向剖面的水平应力的方法和系统以及斯通利剪切模量的远场估计。 该系统和方法包括在测量的径向剖面上选择最佳数量的回归点，以便在存在噪声数据的情况下获得最大和最小水平应力幅度的可靠估计，其中测量的偶极剪切模量的径向轮廓可能表现出少量的随机波动 。

公开(公告)号：US20070268782A1

公开(公告)日：2007-11-22

申请号：US11369433

申请日：2006-03-07

申请人： Jahir Pabon ,  Chaur-Jian Hsu ,  Bikash Sinha

发明人： Jahir Pabon ,  Chaur-Jian Hsu ,  Bikash Sinha

IPC分类号： G01V1/40

CPC分类号： G01V1/50

摘要： Methods and apparatus facilitating measurement of anisotropy are disclosed. According to some aspects, anisotropy can be determined while drilling. Monopole/quadrupole interactions, as well as monitoring dipole excitations and other methods, may be used to find the principal shear directions of a formation while drilling or during wireline or other operations.

摘要翻译： 公开了各向异性测量方法和装置。 根据一些方面，钻孔时可以确定各向异性。 可以使用单极/四极相互作用以及监测偶极子激发和其它方法来在钻井或电缆或其它操作期间找到地层的主要剪切方向。

公开(公告)号：US20060256656A1

公开(公告)日：2006-11-16

申请号：US11125634

申请日：2005-05-10

申请人： Bikash Sinha ,  Jahir Pabon ,  Mare Yamamoto

发明人： Bikash Sinha ,  Jahir Pabon ,  Mare Yamamoto

IPC分类号： G01V1/50

CPC分类号： G01V1/50

摘要： Methods and apparatus facilitating radial profiling of shear slowness or shear modulus c66 in the cross-sectional plane of a borehole in an anisotropic formation with the vertical X3-axis are disclosed. According to some aspects of the invention, sonic tool bias is accounted for and removed from radial profiles. According to some aspects, sonic tool bias is accounted for by modeling the sonic tool as a heavy-fluid.

摘要翻译： 公开了在具有垂直X 3 3轴的各向异性地层中的钻孔的横截面中促进剪切速度或剪切模量c 66的径向剖面的方法和装置 。 根据本发明的一些方面，声纳工具偏差被考虑并从径向剖面去除。 根据一些方面，通过将声波工具建模为重流体来考​​虑声波工具偏差。

公开(公告)号：US20050000688A1

公开(公告)日：2005-01-06

申请号：US10488160

申请日：2002-09-09

申请人： Chaur-Jian Hsu ,  Jahir Pabon ,  Bikash Sinha ,  Sergey Asvadurov

发明人： Chaur-Jian Hsu ,  Jahir Pabon ,  Bikash Sinha ,  Sergey Asvadurov

IPC分类号： E21B47/00 ,  G01V1/28 ,  G01V1/44 ,  G01V1/46 ,  G01V1/52

CPC分类号： G01V1/46 ,  G01V1/284 ,  G01V1/44 ,  G01V1/52

摘要： A tool generates signals indicative a shear wave slowness of the formation surrounding a borehole. The tool comprises a collar portion adapted for mounting in a drill string, a quadrupole sonic transmitter mounted to the collar portion, and a quadrupole sonic receiver array mounted to the collar spaced apart from the transmitter. A method determines shear wave slowness of the formation. The method includes propagating quadrupole wave energy into the formation and detecting quadrupole dispersive waveform received at a second location. Formation shear wave slowness is calculated using dispersive slowness time coherence processing.

摘要翻译： 工具产生指示围绕钻孔的地层的剪切波缓慢的信号。 该工具包括适于安装在钻柱中的套环部分，安装到套环部分的四极声音发射器以及安装到与发射器间隔开的轴环的四极声波接收器阵列。 一种方法确定地层的剪切波慢度。 该方法包括将四极波能量传播到地层并检测在第二位置接收的四极分散波形。 使用色散慢时间相干处理计算形成剪切波慢度。

公开(公告)号：US06510389B1

公开(公告)日：2003-01-21

申请号：US09513602

申请日：2000-02-25

申请人： Kenneth W. Winkler ,  Thomas J. Plona ,  Bikash Sinha ,  Ralph M. D'Angelo ,  Lawrence McGowan

发明人： Kenneth W. Winkler ,  Thomas J. Plona ,  Bikash Sinha ,  Ralph M. D'Angelo ,  Lawrence McGowan

IPC分类号： G01V128

CPC分类号： G01N29/48 ,  G01N29/07 ,  G01N29/11 ,  G01N29/52 ,  G01N2291/2636 ,  G01V1/50

摘要： A method provides for locating and measuring mechanical damage in rock surrounding a borehole by detecting one or both of reductions in ultrasonic compressional wave velocity in the rock as a function of azimuth, and by detecting focused acoustic energy in the rock from local increases in ultrasonic compressional wave amplitude resulting from velocity gradients. A first preferred embodiment uses a combination of azimuthal ultrasonic compressional wave velocity data and azimuthal ultrasonic compressional wave energy data. A second embodiment uses azimuthal ultrasonic compressional wave velocity data and omni-directional sonic velocity data, with a comparison test or a curve fitting test. A third embodiment uses azimuthal ultrasonic compressional wave energy data.

摘要翻译： 一种方法通过检测岩石中的超声波压缩波速度的减小之一或两者作为方位的函数来定位和测量围绕钻孔的岩石中的机械损伤，并且通过从超声压缩的局部增加中检测岩石中的聚焦声能 波幅由速度梯度引起。 第一优选实施例使用方位超声压缩波速度数据和方位超声波压缩波能量数据的组合。 第二实施例使用方位超声波压缩波速度数据和全向声速数据，进行比较测试或曲线拟合测试。 第三实施例使用方位超声压缩波能数据。

公开(公告)号：US20060235618A1

公开(公告)日：2006-10-19

申请号：US11308102

申请日：2006-03-07

申请人： PETER WU ,  ANDREW HAWTHORN ,  TOM BRATTON ,  BIKASH SINHA

发明人： PETER WU ,  ANDREW HAWTHORN ,  TOM BRATTON ,  BIKASH SINHA

IPC分类号： G06F19/00 ,  G01V9/00

CPC分类号： G01V1/46

摘要： A method for obtaining high-quality well logging data acquired during a drilling operation includes acquiring well logging data during a pump-off period when a mud pump is turned off; and extracting a subset of data from the acquired well logging data, wherein the subset of data corresponds to a quiet period within the pump-off period, wherein the quiet period is substantially free of interference from turning the mud pump on or off.

摘要翻译： 一种用于获得在钻井操作期间获取的高质量测井数据的方法，包括在泥浆泵关闭时的抽出期间获取测井数据; 以及从所获取的测井数据中提取数据子集，其中所述数据子集对应于所述泵送期间内的安静时段，其中所述安静时段基本上不受打开或关闭所述泥浆泵的干扰。

公开(公告)号：US20060235617A1

公开(公告)日：2006-10-19

申请号：US11308083

申请日：2006-03-06

申请人： BIKASH SINHA ,  PETER WU ,  JAMES THOMPSON

发明人： BIKASH SINHA ,  PETER WU ,  JAMES THOMPSON

IPC分类号： G06F19/00

CPC分类号： G01V1/50

摘要： A method for monitoring a formation property includes determining at least two slowness values from at least two datasets each characterizing an acoustic wave having a different frequency traversing a formation; and deriving an indicator based on the at least two slowness values. A system for monitoring a formation property includes a process and a memory, wherein the memory stores a program having instructions for: determining at least two slowness values from at least two datasets each characterizing an acoustic wave having a different frequency traversing a formation; and deriving an indicator based on the at least two slowness values.

摘要翻译： 用于监测地层特性的方法包括从至少两个数据集确定至少两个慢度值，每个数据集表征具有穿过地层的不同频率的声波; 以及基于所述至少两个慢度值导出指示符。 用于监视形成特性的系统包括处理和存储器，其中存储器存储具有以下指令的程序：用于从至少两个数据集确定至少两个慢度值，每个数据集表征穿过地层的不同频率的声波; 以及基于所述至少两个慢度值导出指示符。

公开(公告)号：US20060256655A1

公开(公告)日：2006-11-16

申请号：US11125564

申请日：2005-05-10

申请人： Bikash Sinha ,  Toru Ikegami ,  David Johnson ,  Jahir Pabon

发明人： Bikash Sinha ,  Toru Ikegami ,  David Johnson ,  Jahir Pabon

IPC分类号： G01V1/50

CPC分类号： G01V1/50

摘要： Methods and apparatus facilitating radial profiling of shear slowness are disclosed. According to some aspects of the invention, acoustic tool bias is accounted for in the calculation of radial profiles. According so some aspects, acoustic tool bias is accounted for by replacing acoustic tool structure with a resonance-impedance model. The resonance-impedance modeling according to principles of the present invention is applicable to vertical, deviated, and horizontal boreholes.