公开(公告)号：US20160178798A1

公开(公告)日：2016-06-23

申请号：US14577751

申请日：2014-12-19

申请人： Marc Holland ,  Xiaomei Zhang

发明人： Marc Holland ,  Xiaomei Zhang

IPC分类号： G01V99/00 ,  G06F17/10 ,  E21B47/00 ,  G01V1/48 ,  E21B43/26

CPC分类号： G01V99/005 ,  E21B43/26 ,  E21B47/00 ,  G01V1/282 ,  G01V1/288 ,  G01V1/301 ,  G01V1/3808 ,  G01V1/42 ,  G01V1/48 ,  G01V1/50 ,  G01V2210/1234 ,  G01V2210/1429 ,  G01V2210/163 ,  G01V2210/169 ,  G01V2210/646 ,  G01V2210/663 ,  G06F17/10

摘要： A method for correcting a fracture model of a reservoir includes receiving a seismic signal from seismic events due to a plurality of stimulated reservoir stages to provide detected seismic event information and estimating a number of undetected seismic events and a magnitude for each of the undetected seismic events to provide undetected seismic event information for each stage. The detected seismic event information and the undetected seismic event information provide corrected seismic event information for each stage. The method further includes calculating a scaling factor for each stage using a scalar property of the corresponding stage and a reference stage scalar property, applying the scaling factor for each stage to the corrected seismic event information to provide scaled seismic event information for each stage, and correcting the fracture model with the scaled seismic event information for each stage to provide a corrected fracture model.

摘要翻译： 用于校正储层的断裂模型的方法包括：由于多个受刺激的储层阶段而从地震事件接收地震信号，以提供检测到的地震事件信息并且估计未检测到的地震事件的数量以及未检测到的地震事件的大小 为每个阶段提供未检测到的地震事件信息。 检测到的地震事件信息和未检测到的地震事件信息为每个阶段提供校正的地震事件信息。 该方法还包括使用相应级的标量属性和参考级标量特性来​​计算每个级的缩放因子，将每个级的缩放因子应用于校正的地震事件信息，以为每个级提供缩放的地震事件信息，以及 利用每个阶段的缩放地震事件信息来校正断裂模型，以提供校正的断裂模型。

公开(公告)号：US20150361790A1

公开(公告)日：2015-12-17

申请号：US14761168

申请日：2014-01-14

申请人： ENI S.P.A.

发明人： Paolo FERRARA ,  Axel TUROLLA ,  Massimo ZAMPATO

IPC分类号： E21B49/00 ,  G01V1/48 ,  E21B47/06 ,  E21B10/42 ,  E21B47/022

CPC分类号： E21B49/006 ,  E21B10/00 ,  E21B10/42 ,  E21B47/02208 ,  E21B47/06 ,  G01V1/48 ,  H04R17/00

摘要： A method for revealing anomalous discontinuity interfaces in pore pressures in non-drilled geological formations and an implementing system. The method includes generating, by an electroacoustic transducer, first pressure sound waves and receiving a reflected signal of such first pressure sound waves generated by at least one discontinuity interface due to passage from first to second different geological formations situated successively along an emission direction of the electroacoustic transducer; calculating speed of the first pressure sound waves generated and distance between the electroacoustic transducer and the at least one discontinuity interface; generating, by the electroacoustic transducer, second pressure sound waves and revealing the electrical impedance induced at terminals of the electroacoustic transducer; estimating, based on the electrical impedance revealed, plural parameters characteristic of the first and second geological formation; estimating pressure of the second geological formation based on the sound speed and distance calculated and the plural characteristic parameters estimated.

摘要翻译： 揭示非钻孔地质构造孔隙压力异常不连续界面的方法和实施体系。 该方法包括通过电声换能器产生第一压力声波并且接收由至少一个不连续界面产生的这样的第一压力声波的反射信号，这是由于从第一到第二不同的地质构造物沿着沿着发射方向 电声换能器; 计算产生的第一压力声波的速度和电声换能器与至少一个不连续接口之间的距离; 通过电声换能器产生第二压力声波并且显示在电声换能器的端子处感应的电阻抗; 基于所显示的电阻抗，估计第一和第二地质构造的特征的多个参数; 基于计算的声速和距离估计第二地质构造的压力和估计的多个特征参数。

公开(公告)号：US09213121B2

公开(公告)日：2015-12-15

申请号：US13712233

申请日：2012-12-12

申请人： Brooks Childers ,  Roger Duncan

发明人： Brooks Childers ,  Roger Duncan

IPC分类号： G01V1/40 ,  G01V1/48 ,  G01F23/292 ,  E21B47/04 ,  G01H9/00

CPC分类号： G01V1/40 ,  E21B47/042 ,  G01F23/292 ,  G01F23/2927 ,  G01H9/004 ,  G01V1/48

摘要： A system for locating an interface between a first material and a second material including one or more acoustic sensing elements operatively arranged to measure a characteristic of one or more acoustic signals at a plurality of locations along a length thereof. An instrumentation unit is coupled with the one or more acoustic sensing elements, and arranged to determine a difference between at least a first value of the characteristic measured at a first location and a second value of the characteristic measured at a second location of the plurality of locations for identifying the interface between the first material and the second material as being located between the first and second locations if the difference is greater than a preselected threshold amount. A method of locating an interface is also included.

摘要翻译： 一种用于定位第一材料和第二材料之间的界面的系统，包括一个或多个声学感测元件，其被可操作地布置成在沿其长度的多个位置处测量一个或多个声学信号的特性。 仪器单元与一个或多个声学感测元件耦合，并被布置成确定在第一位置处测量的特征的至少第一值与在多个测量单元中的第二位置处测量的特性的第二值之间的差异 用于将所述第一材料和所述第二材料之间的界面识别为位于所述第一和第二位置之间的位置，如果所述差大于预选阈值量。 还包括定位接口的方法。

公开(公告)号：US20150355356A1

公开(公告)日：2015-12-10

申请号：US14670085

申请日：2015-03-26

申请人： John E. Anderson ,  Anatoly Baumstein ,  Carey Marcinkovich ,  Tetyana Vdovina ,  Valeriy Brytik

发明人： John E. Anderson ,  Anatoly Baumstein ,  Carey Marcinkovich ,  Tetyana Vdovina ,  Valeriy Brytik

IPC分类号： G01V1/32 ,  G01V1/48 ,  G01V1/36

CPC分类号： G01V1/36 ,  G01V1/28 ,  G01V2210/44 ,  G01V2210/51 ,  G01V2210/679

摘要： Method for correcting seismic simulations, RTM, and FWI for temporal dispersion due to temporal finite difference methods in which time derivatives are approximated to a specified order of approximation. Computer-simulated seismic data (51) are transformed from time domain to frequency domain (52), and then resampled using a mapping relationship that maps, in the frequency domain, to a frequency at which the time derivative exhibits no temporal dispersion (53), or to a frequency at which the time derivative exhibits a specified different order of temporal dispersion. Alternatively, measured seismic data from a field survey (61) may have temporal dispersion of a given order introduced, by a similar technique, to match the order of approximation used to generate simulated data which are to be compared to the measured data.

摘要翻译： 用于由时间有限差分法校正地震模拟，RTM和FWI用于时间色散的方法，其中时间导数近似为指定的近似次数。 计算机模拟地震数据（51）从时域（52）变换到频域（52），然后使用在频域中映射到时间导数不显示时间色散的频率的映射关系重新采样（53） 或时间导数呈现指定的不同时间色散顺序的频率。 或者，来自现场勘测（61）的测量的地震数据可以通过类似的技术具有引入的给定次序的时间色散，以与用于生成将与测量数据进行比较的模拟数据的近似的顺序相匹配。

公开(公告)号：US09171356B2

公开(公告)日：2015-10-27

申请号：US14223834

申请日：2014-03-24

申请人： Schlumberger Technology Corporation

发明人： Junichi Sugiura

IPC分类号： G06T5/00 ,  G01V1/48 ,  G06T5/10

CPC分类号： G06T5/002 ,  G01V1/48 ,  G06T5/10

摘要： A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) transform (e.g., using a discrete cosine transform). The cyclic noise components (peaks) are removed from the transformed image which is then inverse transformed back into the spatial domain using an inverse 2-D transform to obtain a corrected image. An automated method enables the cyclic peaks to be identified and removed from the borehole image via downhole processing.

摘要翻译： 从井眼图像中去除循环噪声的方法包括使用二维（2-D）变换（例如，使用离散余弦变换）将图像变换成频域。 循环噪声分量（峰值）从变换图像中去除，然后使用逆二维变换逆向变换回空间域，以获得校正图像。 一种自动化方法使得能够通过井下处理从钻孔图像识别和去除循环峰。

公开(公告)号：US09140815B2

公开(公告)日：2015-09-22

申请号：US13805679

申请日：2011-06-22

申请人： Jorge Louis Lopez ,  Johannes Hubertus Hyacinthus Maria Potters ,  Peter Berkeley Wills

发明人： Jorge Louis Lopez ,  Johannes Hubertus Hyacinthus Maria Potters ,  Peter Berkeley Wills

IPC分类号： G01V1/48 ,  G01V1/16

CPC分类号： G01V1/48 ,  G01V1/16

摘要： A method for obtaining information about a subsurface formation from acoustic signals that contain information about the subsurface formation, comprises a) transmitting an optical signal into a fiber optic cable (14) that includes a sensing apparatus (20) comprising a plurality of substantially parallel fiber lengths (24), b) collecting from the sensing apparatus a plurality of received optical signals, each received signal comprising a portion of the transmitted signal that has been reflected from a different segment of a cable length, wherein the different segments are each in different cable lengths and correspond to a single selected location along the sensing cable, and c) processing the collected signals so as to obtain information about an acoustic signal received at the different segments. The cable may be ribbon cable and the lateral distance between the different segments may be less than 10 meters.

摘要翻译： 一种用于从包含关于地下地层信息的声信号获得关于地下构造的信息的方法，包括：a）将光信号传输到光纤电缆（14）中，所述光纤电缆包括感测装置（20），所述感测装置包括多个基本平行的光纤 长度（24），b）从感测装置收集多个接收到的光信号，每个接收信号包括已经从电缆长度的不同段反射的发射信号的一部分，其中不同的段各自不同 电缆长度并且对应于沿着感测电缆的单个选定位置，以及c）处理所收集的信号，以获得关于在不同段处接收的声信号的信息。 电缆可以是带状电缆，不同部分之间的横向距离可能小于10米。

公开(公告)号：US20150218930A1

公开(公告)日：2015-08-06

申请号：US14612101

申请日：2015-02-02

申请人： Schlumberger Technology Corporation

发明人： Smaine Zeroug ,  Jiaqi Yang ,  Sandip Bose

IPC分类号： E21B47/00 ,  G01V1/48

CPC分类号： G01V1/50 ,  E21B47/0005 ,  E21B47/14

摘要： Embodiments of the disclosure may include systems and methods for estimating an acoustic property of an annulus in a cement evaluation system. In one embodiment, a casing arrival signal is acquired at acoustic receivers a cement evaluation tool. A spectral amplitude ratio is calculated based on the casing arrival signal. The spectral amplitude ratio is scanned to detect and identify discontinuities. If discontinuities are detected, the frequency at the discontinuity may be used to estimate a wavespeed of the annulus. If discontinuities are not detected, attenuation dispersions are calculated and estimated, and an estimated wavespeed and parameters are updated until the calculated and estimated attenuation dispersions match.

摘要翻译： 本公开的实施例可以包括用于估计水泥评估系统中的环的声学特性的系统和方法。 在一个实施例中，在声学接收器处获取水泥评估工具的套管到达信号。 基于壳体到达信号计算频谱振幅比。 扫描光谱振幅比以检测和识别不连续性。 如果检测到不连续性，则可以使用不连续处的频率来估计环带的波速。 如果不检测到不连续性，则计算和估计衰减分散，并且估计的波速和参数被更新，直到计算和估计的衰减色散匹配。

公开(公告)号：US09075155B2

公开(公告)日：2015-07-07

申请号：US13082522

申请日：2011-04-08

申请人： John Luscombe ,  Etienne M. Samson ,  John L. Maida

发明人： John Luscombe ,  Etienne M. Samson ,  John L. Maida

IPC分类号： G01V1/48 ,  G01V8/16 ,  G01V1/22 ,  G01V1/28 ,  G01V1/42 ,  G01V8/24

CPC分类号： G01V1/226 ,  G01V1/288 ,  G01V1/42 ,  G01V1/48 ,  G01V8/24 ,  G01V2210/1234

摘要： Various optical fiber-based seismic monitoring system embodiments include a light source that drives an optical fiber positioned within a borehole. At least one light sensor analyzes Rayleigh backscattered light to obtain an acoustic signal for each of multiple points along the borehole. One or more processors operate to determine microseismic event direction, distance, and/or intensity based at least in part on phase information of said acoustic signals. The acoustic signal cross-correlations, semblances, or phase-sensitive similarity measures can be determined as a function of scanning direction to accurately determine the relevant microseismic event information. The optical fiber may be positioned in the cemented annulus of a cased borehole having a shape that extends along more than one dimension (e.g., an L-shaped borehole).

摘要翻译： 各种基于光纤的地震监测系统实施例包括驱动位于钻孔内的光纤的光源。 至少一个光传感器分析瑞利背散射光以获得沿着钻孔的多个点中的每一个的声信号。 至少部分地基于所述声信号的相位信息，一个或多个处理器操作以确定微震事件方向，距离和/或强度。 可以根据扫描方向确定声信号互相关，相似或相敏相似性度量，以准确地确定相关的微震事件信息。 光纤可以定位在具有沿多于一个尺寸延伸的形状（例如，L形钻孔）的套管钻孔的胶结环形空间中。

公开(公告)号：US08797825B2

公开(公告)日：2014-08-05

申请号：US12848430

申请日：2010-08-02

申请人： Medhat W. Mickael

发明人： Medhat W. Mickael

IPC分类号： G01V1/00 ,  G01V1/52 ,  G01V1/48

CPC分类号： G01V1/52 ,  G01V1/46 ,  G01V1/48 ,  G01V1/50 ,  G01V2210/6222 ,  G01V2210/626

摘要： A logging system for measuring anisotrophic properties of the materials penetrated by a borehole. A downhole or “logging tool” element of the system comprises a source section that comprises either a unipole or a dipole acoustic source. The receiver section comprises a plurality of receiver stations disposed at different axial spacings from the acoustic source. Each receiver station comprises one or more acoustic receivers. The system requires that the source and receiver sections rotate synchronously as the logging tool is conveyed along the borehole. Receiver responses are measured in a plurality of azimuthal angle segments and processed as a function of rotation angle of the tool. The logging system can be embodied as a logging-while-drilling system, a measurement-while-drilling system, and a wireline system that synchronously rotates source and receiver sections. All embodiments require that the acoustic source operate at a relatively high frequency.

摘要翻译： 用于测量钻孔渗透的材料的各向异性特征的测井系统。 系统的井下或“测井工具”元件包括源单元，其包括单极或偶极声源。 接收器部分包括设置在与声源不同轴向间隔的多个接收器台。 每个接收器站包括一个或多个声学接收器。 当测井工具沿钻孔传送时，系统要求源和接收器部分同步旋转。 接收器响应在多个方位角段中测量，并作为工具旋转角度的函数进行处理。 测井系统可以体现为同步钻井系统，钻井测量系统和同步旋转源和接收器部分的有线系统。 所有实施例都要求声源以相对高的频率工作。

公开(公告)号：US20140169130A1

公开(公告)日：2014-06-19

申请号：US13712971

申请日：2012-12-13

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

发明人： Shuchin Aeron ,  Sandip Bose ,  Henri-Pierre Valero

IPC分类号： G01V1/48

CPC分类号： G06F17/148 ,  G01V1/364 ,  G01V2210/46

摘要： Methods and apparatus for waveform processing are disclosed. An example method includes representing waveform data using space time propagators in the Discrete Radon Transform Domain. The method also includes identifying signals within the represented waveform data using a Sparisty Penalized Transform.

摘要翻译： 公开了用于波形处理的方法和装置。 示例性方法包括使用离散氡变换域中的空间时间传播器来表示波形数据。 该方法还包括使用Sparisty Penalized变换来识别所表示的波形数据内的信号。