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：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：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.

公开(公告)号：US20050254343A1

公开(公告)日：2005-11-17

申请号：US10847045

申请日：2004-05-17

申请人： Yoshiyuki Saiki ,  Oliver Skelton ,  Jahir Pabon ,  Bikash Sinha

发明人： Yoshiyuki Saiki ,  Oliver Skelton ,  Jahir Pabon ,  Bikash Sinha

IPC分类号： G01V1/36 ,  G01V1/48

CPC分类号： G01V1/36 ,  G01V2210/54

摘要： A method for processing acoustic data comprising applying a dynamic filter band. The method and apparatus may be particularly adapted to processing sonic data to measure formation slowness in a borehole.

摘要翻译： 一种用于处理声学数据的方法，包括应用动态滤波器带。 该方法和装置可以特别适于处理声波数据以测量井眼中的地层慢度。

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：US20060285437A1

公开(公告)日：2006-12-21

申请号：US11145487

申请日：2005-06-03

申请人： Bikash Sinha ,  Badarinadh Vissapragada

发明人： Bikash Sinha ,  Badarinadh Vissapragada

IPC分类号： G01V1/00

CPC分类号： G01V1/50

摘要： Methods and apparatus facilitating radial profiling of formation mobility are disclosed. Radial profiling of formation mobility aids in an optimal completion of a well for enhanced production. Some aspects of the present invention provide a technique for radial profiling of formation mobility based on inverting differences between a Stoneley radial profile of horizontal shear slowness and a dipole radial profile of vertical shear slowness for a reservoir interval.

摘要翻译： 公开了促进形成迁移率的径向剖面的方法和装置。 地层移动的径向剖面有助于最佳完井，以提高生产效率。 本发明的一些方面提供了一种用于基于水平剪切慢度的斯通利径向轮廓与用于储存间隔的垂直剪切慢度的偶极子径向轮廓之间的倒数差异的地层迁移性的径向轮廓的技术。

公开(公告)号：US20050065730A1

公开(公告)日：2005-03-24

申请号：US10665134

申请日：2003-09-18

申请人： Bikash Sinha

发明人： Bikash Sinha

IPC分类号： G01V1/40 ,  G01V1/50

CPC分类号： G01V1/50

摘要： A method for determining the maximum and minimum horizontal stresses of formations surrounding a borehole includes the following steps: suspending a logging device in the borehole; transmitting sonic energy from the logging device to establish flexural waves in the formations; receiving, at the logging device, sonic energy from the flexural waves, and producing, from the received sonic energy, measurement signals at a number of frequencies; determining, at the number of frequencies, the fast and slow flexural wave velocities in the formations, to obtain fast and slow flexural velocity dispersions; establishing a model of formation stresses in which stresses of a loaded state are represented by the sum of an omnidirectional hydrostatically loaded mean reference stress, a vertical stress perturbation, and maximum and minimum horizontal stress perturbations; establishing an inversion model that includes inputs from the fast and slow flexural velocity dispersions and also includes unknown horizontal perturbations of the model of formation stresses; deriving, from the inversion model, estimates of the maximum and minimum horizontal stress perturbations; and determining, from the estimates of the maximum and minimum horizontal stress perturbations and the mean reference stress, estimates of the maximum and minimum horizontal stresses of the formations.

摘要翻译： 一种用于确定围绕钻孔的地层的最大和最小水平应力的方法包括以下步骤：将测井装置悬挂在钻孔中; 从测井装置传输声能以在地层中建立弯曲波; 在测井装置处接收来自弯曲波的声能，并从接收到的声波能量产生多个频率的测量信号; 在频率数量上确定地层中快速和慢速的弯曲波速度，以获得快速和慢速的弯曲速度分散; 建立地层应力模型，其中负载状态的应力由全向静压加载的平均参考应力，垂直应力扰动和最大和最小水平应力扰动之和表示; 建立包括快速和慢速弯曲速度分散体的输入的反演模型，还包括地层应力模型的未知水平扰动; 从反演模型推导出最大和最小水平应力扰动的估计; 并根据最大和最小水平应力扰动和平均参考应力的估计确定地层最大和最小水平应力的估计。

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：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。