公开(公告)号：US20080189041A1

公开(公告)日：2008-08-07

申请号：US11574905

申请日：2005-09-08

申请人： Benoit Froelich ,  Emmanuel Legendre

发明人： Benoit Froelich ,  Emmanuel Legendre

IPC分类号： G01V1/48

CPC分类号： G01V1/48

摘要： A method for estimating an impedance of a material behind a casing wall in a borehole, the method comprises exciting (602) the casing wall with an acoustic pulse, and measuring (603) an experimental acoustic waveform (W) reflected from the casing wall. The method further comprises initializing (600) an impedance parameter (Zin), computing (601) an inverse casing response (Rcas−1) as function of the impedance parameter, and deconvoluting (604) the experimental acoustic waveform with the inverse casing response to obtain a transducer (T). An iterative loop (605, 606, 607) is performed, comprising the computing of an inverse casing response and the deconvoluting of the experimental acoustic waveform by varying (607) the impedance parameter until the transducer response becomes compact (605, 606) in the time domain. The estimated impedance (Zcem) is obtained (606) from the impedance parameter when the transducer response is compact.

摘要翻译： 一种用于估计钻孔中的壳体壁后面的材料的阻抗的方法，所述方法包括用声学脉冲激励（602）所述壳体壁，并且测量（603）从所述壳体壁反射的实验声波形（W）。 该方法还包括：初始化（600）阻抗参数（Zin），计算（601）作为阻抗参数的函数的反壳体响应（R＆lt; C＆gt;＆lt; SUP> -1） 并用反壳体反应解卷积（604）实验声波形，得到换能器（T）。 执行迭代循环（605,606,607），其包括通过改变（607）阻抗参数直到传感器响应变得紧凑（605,606）来计算反壳体响应和解卷积实验声波形 时域。 当传感器响应紧凑时，从阻抗参数获得估计阻抗（Zcem）（606）。

公开(公告)号：US20050240349A1

公开(公告)日：2005-10-27

申请号：US10711242

申请日：2004-09-03

申请人： Jaideva Goswami ,  Ashok Srivastava ,  Denis Heliot ,  Thomas Neville

发明人： Jaideva Goswami ,  Ashok Srivastava ,  Denis Heliot ,  Thomas Neville

IPC分类号： G01V20060101 ,  G01V1/48 ,  G06F17/00 ,  G06F19/00

CPC分类号： G01V1/48

摘要： A method and apparatus are useful for decomposing a complex distribution of data by modeling the complex distribution as a sum of discrete simple distributions, and processing the simple distributions independently. The independent processing enables the complex distribution to be reconstructed without the simple distributions that are concluded to be spurious. The simple distributions preferably include one or more statistical distributions that are subject to being characterized by a reduced data set for efficient communication and reconstruction of the complex distribution. The modeling and processing steps preferably employ one or more evolutionary algorithms.

摘要翻译： 一种方法和装置可用于通过将复数分布建模为离散简单分布的和来分解数据的复杂分布，并且独立地处理简单分布。 独立处理使得能够重构复杂的分布，而不需要将结论为假的简单分布重构。 简单的分布优选地包括一个或多个统计分布，其被表征为用于复杂分布的有效通信和重建的简化数据集。 建模和处理步骤优选采用一个或多个进化算法。

公开(公告)号：US06957572B1

公开(公告)日：2005-10-25

申请号：US10710128

申请日：2004-06-21

申请人： Peter T. Wu

发明人： Peter T. Wu

IPC分类号： E21B47/18 ,  E21B49/00 ,  G01V20060101 ,  G01V1/36 ,  G01V1/40 ,  G01V1/48 ,  G01V1/50

CPC分类号： G01V1/50

摘要： A method for determining mud slowness of a mud in a borehole includes determining slowness as a function of frequency for at least one fluid mode from a set of measurements acquired with a sonic tool in the borehole; and determining the mud slowness from the slowness as a function of frequency for the at least one fluid mode. A downhole sonic tool includes a transmitter capable of generating signals covering a frequency range, a high end of which is more than 30 KHz; and a receiver array comprising a plurality of receivers, which are responsive to the frequency range of the transmitter, wherein the transmitter and the receiver array are spaced apart on a tool body at a selected TR spacing.

摘要翻译： 用于确定钻孔中泥浆的泥浆慢度的方法包括：从用钻孔中的声波工具获取的一组测量来确定作为至少一种流体模式的频率的函数的慢度; 以及根据所述至少一种流体模式的频率的函数从所述慢度确定泥浆缓慢。 井下声波工具包括能够产生覆盖频率范围的信号的发射机，其高端大于30KHz; 以及接收器阵列，其包括响应于所述发射器的频率范围的多个接收器，其中所述发射器和接收器阵列在所选择的TR间隔处在工具主体上间隔开。

公开(公告)号：US06925031B2

公开(公告)日：2005-08-02

申请号：US10317457

申请日：2002-12-12

申请人： Berthold Kriegshauser ,  Otto N. Fanini ,  Richard A. Mollison ,  Liming Yu ,  Tsili Wang ,  Xiao Ming Tang

发明人： Berthold Kriegshauser ,  Otto N. Fanini ,  Richard A. Mollison ,  Liming Yu ,  Tsili Wang ,  Xiao Ming Tang

IPC分类号： G01V1/48 ,  G01V11/00 ,  G01V1/00 ,  G01V3/18

CPC分类号： G01V11/00 ,  G01V1/48

摘要： Measurements made by a cross-dipole acoustic logging tool in a borehole are processed to determine the principal directions of azimuthal anisotropy of a subsurface formation. Measurements indicative of azimuthal resistivity variations are also made with a multicomponent induction logging tool. These electrical measurements are processed using the principal direction determined from acoustic measurements to give an estimate of azimuthal resistivity variations. Based on modeling results, azimuthal resistivity variations are interpreted to estimate a fracture depth in the rock for known fluids therein.

摘要翻译： 对钻孔中的交叉偶极声波测井仪进行测量，以确定地下地层方位角各向异性的主要方向。 也可以用多组分感应测井工具进行指示方位电阻率变化的测量。 使用从声学测量确定的主方向来处理这些电测量，以给出方位电阻率变化的估计。 基于模拟结果，方位角电阻率变化被解释为估计岩石中已知流体的断裂深度。

公开(公告)号：US06856912B2

公开(公告)日：2005-02-15

申请号：US10477296

申请日：2002-05-06

申请人： Gijsbert Christiaan Fehmers ,  William Alexander Mulder ,  Rene-Edouard Andre Michel Plessix

发明人： Gijsbert Christiaan Fehmers ,  William Alexander Mulder ,  Rene-Edouard Andre Michel Plessix

IPC分类号： G01V1/36 ,  G01V1/48 ,  G06V1/00

CPC分类号： G01V1/48 ,  G01V1/364 ,  G01V2210/324 ,  G01V2210/3246

摘要： Method of removing irregularities caused by tube waves from seismic data obtained in a borehole seismic survey, using a set of seismic or sources and a set of seismic receivers each arranged in a borehole, in which seismic data is time shifted based on an estimated tube wave velocity, filtered and then the time shift is reversed and applied to the original data set resulting in a corrected set, which is again time shifted opposite to the original time shift to remove and identify tube wave irregularities.

摘要翻译： 根据井眼地震勘测中获得的地震数据，使用一组地震或震源，以及每组布置在井眼中的一组地震接收器，从地震数据中消除由管波引起的不规则的方法，其中地震数据基于估计的管波 速度，滤波，然后时移反转并施加到原始数据集，导致校正集合，其再次与原始时间偏移相反，以移除和识别管波不规则。

公开(公告)号：US6078869A

公开(公告)日：2000-06-20

申请号：US250374

申请日：1999-02-16

申请人： Dayal L. Gunasekera

发明人： Dayal L. Gunasekera

IPC分类号： G01V1/28 ,  G01V1/30 ,  G01V1/48 ,  G01V1/50 ,  G01V1/20

CPC分类号： G01V1/282 ,  G01V1/28 ,  G01V1/30 ,  G01V1/301 ,  G01V1/48 ,  G01V1/50 ,  G01V2210/66

摘要： A Petragrid method and apparatus generates grid cell property information that is adapted for use by a computer simulation apparatus. An interpretation workstation includes at least two software programs stored therein: a first program called "Petragrid" and a second simulation program for generating a set of simulation results for display. The first Petragrid software program will: receive well log and seismic data which indicates each layer of a formation, grid each layer of the formation where the grid is comprised of a plurality of cells, and generate more accurate data associated with each grid cell, such as the transmissibility. The more accurate data for each cell will be transmitted to the second simulation program which will respond by generating a set of more accurate simulation results for each cell of the grid, and overlaying the more accurate simulation result for each cell onto each of the corresponding cells of the grid being displayed on the workstation display by the Petragrid software. The workstation will display each layer of the formation where each layer is gridded, and each grid cell has its own color corresponding in numerical value to a more accurate simulation result (e.g., pressure or saturation) that corresponds to that cell.

摘要翻译： Petragrid方法和装置产生适于由计算机模拟装置使用的网格单元属性信息。 解释工作站包括存储在其中的至少两个软件程序：称为“Petragrid”的第一程序和用于生成用于显示的一组模拟结果的第二仿真程序。 第一个Petragrid软件程序将：接收指示每个层的地层的井测井和地震数据，对地层的每层由网格组成的多个单元进行格网，并产生与每个网格单元相关联的更准确的数据，如 作为传递性。 每个单元的更准确的数据将被传送到第二仿真程序，该程序将通过为网格的每个单元产生一组更准确的模拟结果并将每个单元的更准确的模拟结果覆盖到相应的每个单元上 的网格由Petragrid软件显示在工作站显示屏上。 工作站将显示每个层网格的每个层的每个层，并且每个网格单元具有其以数值对应的自己的颜色，以对应于该单元的更准确的模拟结果（例如，压力或饱和度）。

公开(公告)号：US6023443A

公开(公告)日：2000-02-08

申请号：US112255

申请日：1998-07-08

申请人： Vladimir Dubinsky ,  Alexei Bolshakov ,  James V. Leggett, III

发明人： Vladimir Dubinsky ,  Alexei Bolshakov ,  James V. Leggett, III

IPC分类号： E21B43/08 ,  E21B43/12 ,  E21B43/14 ,  G01V1/48 ,  G01V1/40

CPC分类号： E21B43/08 ,  E21B43/12 ,  E21B43/14 ,  G01V1/48

摘要： The present invention provides a system for drilling boreholes having a downhole subassembly which contains an acoustic measurement-while-drilling system. It uses the acoustic velocity through the formations surrounding the borehole and an acoustic transmitter and a set of receivers for determining the bed boundaries surrounding the borehole formation. Semblance of the data is determined in a slowness/intercept-time domain. Coherence and semblance filtering methods are used to differentiate between reflection signals and noise. The position and orientation of the bed boundary relative to the tool are determined. A further processing step uses the relative position and orientation determined for a number of tool positions to further discriminate against noise and obtain an absolute position and depth of the bed boundaries.

摘要翻译： 本发明提供了一种用于钻孔的系统，其具有包含声学测量同时钻孔系统的井下子组件。 它使用通过围绕钻孔的地层的声速和用于确定围绕钻孔地层的床边界的声发射器和一组接收器。 数据的相似性在慢/截取时域中确定。 相干和相似滤波方法用于区分反射信号和噪声。 确定床边界相对于工具的位置和方向。 进一步的处理步骤使用为多个工具位置确定的相对位置和取向进一步区分噪声并获得床边界的绝对位置和深度。

公开(公告)号：US5999484A

公开(公告)日：1999-12-07

申请号：US820823

申请日：1997-03-19

申请人： Christopher V. Kimball ,  Pawel Lewicki

发明人： Christopher V. Kimball ,  Pawel Lewicki

IPC分类号： G01V1/48 ,  G01V1/50 ,  G01V1/40

CPC分类号： G01V1/50 ,  G01V1/48

摘要： A method of analyzing Stoneley waveforms obtained in a well logging operation, includes analyzing the waveforms by means of multiparameter inversion using one or more externally provided parameters to obtain borehole fluid slowness and borehole fluid attenuation. and analyzing the Stoneiey waveforms by multiparameter inversion using the borehole fluid slowness and borehole fluid attenuation and the externally provided parameters so as to determine a parameter, such as mobility, related to permeability of the formation being logged. Complex conjugate back propagation [using a maximum likelihood/least mean squares error estimator or] by applying Prony's method and fitting model-derived dispersion curves can be used to obtain mobility.

摘要翻译： 分析在测井操作中获得的斯通利波形的方法，包括使用一个或多个外部提供的参数通过多参数反演来分析波形，以获得井眼流体缓慢和井眼流体衰减。 并使用井眼流体慢度和井眼流体衰减和外部提供的参数通过多参数反演来分析Stoneiey波形，以便确定与被记录的地层的渗透率相关的参数，例如移动性。 可以使用复共轭反向传播[使用最大似然/最小均方误差估计器或]通过应用Prony方法和拟合模型导出的色散曲线来获得移动性。

公开(公告)号：US5852262A

公开(公告)日：1998-12-22

申请号：US535968

申请日：1995-09-28

申请人： Stephen P. Gill ,  Timothy Prowten ,  Marek Z. Kozak

发明人： Stephen P. Gill ,  Timothy Prowten ,  Marek Z. Kozak

IPC分类号： G01V1/48 ,  G01V1/52 ,  G01V1/40

CPC分类号： G01V1/48 ,  G01V1/52 ,  Y10S367/911

摘要： An acoustic formation logging tool includes a transmitter, a receiver, a tube wave absorber, and a digital signal processing section. The transmitter includes an electromagnetic actuator based on capacitive discharge through a coil, producing an intense magnetic pressure which causes an actuator to move into an oil-filled acoustic waveguide. The actuator includes a pusher plate with holes that reduces cavitation and is capable of operation at great depths commonly encountered in oil well logging. Pulse power and spectrum of the acoustic transmitter are sufficient to measure either reflections from distant geological structures or waves propagating through the formation near the borehole. A positive acoustic pulse and a symmetric negative acoustic pulse are generated by action of the actuator on the acoustic waveguide. By directing and diverting the positive and negative pulses, a plurality of acoustic transmitters in a tool provide for operation in a multiplicity of modes: monopole, dipole, quadrupole, and a new unipole mode. The tube wave absorber is provided for attenuating tube wave energy that is propagated in the borehole fluid.

摘要翻译： 声学测井工具包括发射器，接收器，管波吸收器和数字信号处理部分。 发射机包括基于通过线圈的电容放电的电磁致动器，产生强烈的磁压力，其使致动器移动到充油的声波导中。 致动器包括具有孔的推动板，其具有减小空化的能力并且能够在油井测井中通常遇到的较大深度操作。 声发射机的脉冲功率和频谱足以测量远离地质结构的反射或通过钻孔附近的地层传播的波。 通过致动器在声波导上的作用产生正声脉冲和对称负声脉冲。 通过引导和转移正脉冲和负脉冲，工具中的多个声发射器提供多种模式的操作：单极，偶极，四极和新的单极模式。 管波吸收器用于衰减在井眼液体中传播的管波能量。

公开(公告)号：US5828981A

公开(公告)日：1998-10-27

申请号：US439343

申请日：1995-05-11

申请人： Christie Ann Callender ,  James Joseph Funk ,  Cynthia Marie Ross ,  John Benjamin Turbeville, Jr.

发明人： Christie Ann Callender ,  James Joseph Funk ,  Cynthia Marie Ross ,  John Benjamin Turbeville, Jr.

IPC分类号： G01V11/00 ,  G01V1/48

CPC分类号： G01V11/00 ,  Y10S706/928 ,  Y10S706/929

摘要： Methods of directly analyzing wireline well logging data to derive pore types, pore volumes and capillary pressure curves from the wireline logs are disclosed. A trained and validated neural network is applied to wireline log data on porosity, bulk density and shallow, medium and deep conductivity to derive synthetic pore type proportions as a function of depth. These synthetic data are then applied through a derived and validated capillary pressure curve data model to derive pore volume and pressure data as a function of borehole depth.

摘要翻译： 公开了直接分析有线测井数据以从电缆测井中导出孔隙类型，孔体积和毛细管压力曲线的方法。 将经过训练和验证的神经网络应用于孔隙度，体积密度和浅，中等和深度电导率的电缆对数数据，以得出合成孔隙比例作为深度的函数。 然后通过衍生和验证的毛细管压力曲线数据模型应用这些合成数据，以导出孔隙体积和压力数据作为钻孔深度的函数。