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    System and method for attenuating aliasing in seismic data caused by acquisition geometry
    1.
    发明授权
    System and method for attenuating aliasing in seismic data caused by acquisition geometry 有权
    用于衰减由采集几何引起的地震数据中的混叠的系统和方法

    公开(公告)号：US08660798B2

    公开(公告)日：2014-02-25

    申请号：US12712450

    申请日：2010-02-25

    申请人： Yue Wang

    发明人： Yue Wang

    IPC分类号： G01V1/36

    CPC分类号： G01V1/364 ,  G01V2210/22 ,  G01V2210/242 ,  G01V2210/514 ,  G01V2210/522 ,  G01V2210/57 ,  G01V2210/671

    摘要： Seismic data representing the propagation of seismic energy through a geologic volume of interest is processed. The seismic energy propagates through the geologic volume of interest from one or more source locations at or near the geologic volume of interest to one or more detector locations at or near the geologic volume of interest. In processing the seismic data, the seismic energy is modeled as beams (e.g., Gaussian beams). The processing includes determining a filter for the seismic data that attenuates aliasing which may be present in the seismic data due to spacing between detector locations.

    摘要翻译： 处理表示地震能量通过感兴趣的地质体积传播的地震数据。 地震能量通过感兴趣的地质体积从感兴趣的地质体积处或附近的一个或多个源位置传播到感兴趣的地质体积处或附近的一个或多个检测器位置。 在处理地震数据时，将地震能量建模为波束（如高斯波束）。 该处理包括确定用于衰减由于检测器位置之间的间隔而可能存在于地震数据中的混叠的地震数据的滤波器。

    Time variant suppression of coherent noise signals in a seismic section
    3.
    发明授权
    Time variant suppression of coherent noise signals in a seismic section 失效
    地震剖面中相干噪声信号的时变抑制

    公开(公告)号：US4972382A

    公开(公告)日：1990-11-20

    申请号：US359808

    申请日：1989-05-31

    申请人： Richard L. Crider

    发明人： Richard L. Crider

    IPC分类号： G01V1/36

    CPC分类号： G01V1/364 ,  G01V2210/22 ,  G01V2210/3246

    摘要： Time-invariant multichannel seismic data filters are applied to seismic data traces for rejecting coherent noise signals within a time-space window. In one embodiment, these filters are applied for rejecting all signals having the same trace-to-trace slopes as the coherent noise signal. Segments of the filtered traces that are within the time-space window are added to corresponding segments of unfiltered traces outside of the time window for producing reconstituted time-variantly filtered traces. In another embodiment, these filters are applied for rejecting the coherent noise signals and passing all other signals within the time-space window and passing all signals outside of the window for producing time-variantly filtered traces.

    摘要翻译： 时不变的多通道地震数据滤波器被应用于地震数据轨迹，用于在时空窗口内拒绝相干噪声信号。 在一个实施例中，这些滤波器被应用于拒绝具有与相干噪声信号相同的轨迹到轨迹斜率的所有信号。 在时间窗口内的已滤波迹线的段被添加到时间窗口之外的未滤波迹线的相应段，用于产生重构的时变滤波迹线。 在另一个实施例中，这些滤波器被应用于拒绝相干噪声信号并且传递时间 - 空间窗口内的所有其它信号，并将所有信号传递到窗口外部，以产生时变滤波的迹线。

    Method for eliminating spectral constraints of acquisition system and earth filtering effects
    5.
    发明申请
    Method for eliminating spectral constraints of acquisition system and earth filtering effects 有权
    消除采集系统频谱约束和地球滤波效应的方法

    公开(公告)号：US20120259553A1

    公开(公告)日：2012-10-11

    申请号：US13066036

    申请日：2011-04-05

    申请人： Gregory Ernest Parkes ,  Stian Hegna ,  Anthony James Day

    发明人： Gregory Ernest Parkes ,  Stian Hegna ,  Anthony James Day

    IPC分类号： G01V1/36 ,  G06F19/00 ,  G01V1/38

    CPC分类号： G01V1/364 ,  G01V2210/1293 ,  G01V2210/1423 ,  G01V2210/22 ,  G01V2210/23 ,  G01V2210/56

    摘要： Recorded seismic data are represented as a convolution of operators representing a reflectivity series of the earth and a seismic wavelet. The recorded seismic wavelet is represented as a convolution of operators representing a receiver ghost, a source ghost, a ghost-free source system response, an earth filter response, and a receiver system response. The operator representing the receiver ghost is removed from the convolution representing the seismic wavelet. The operator representing the source ghost is removed from the convolution representing the seismic wavelet. The operator representing the ghost-free source response is removed from the convolution representing the seismic wavelet. The operator representing the earth filter response is removed from the convolution representing the seismic wavelet. The operator representing the seismic wavelet is removed from the convolution representing the recorded seismic data.

    摘要翻译： 记录的地震数据被表示为表示地球和地震小波的反射系列的运算符的卷积。 记录的地震小波被表示为代表接收机重影，源幽灵，无重影源系统响应，地球滤波器响应和接收机系统响应的运算符的卷积。 代表接收机重影的算子从表示地震小波的卷积中去除。 代表源幽灵的算子从表示地震小波的卷积中去除。 表示无重影源响应的运算符从代表地震小波的卷积中去除。 表示地球滤波器响应的算子从表示地震小波的卷积中去除。 代表地震小波的算子从表示记录的地震数据的卷积中去除。

    Seismic Adaptive Focusing
    7.
    发明申请
    Seismic Adaptive Focusing 审中-公开
    地震自适应聚焦

    公开(公告)号：US20150293248A1

    公开(公告)日：2015-10-15

    申请号：US14677585

    申请日：2015-04-02

    申请人： John Theodore Etgen ,  Chunlei Chu

    发明人： John Theodore Etgen ,  Chunlei Chu

    IPC分类号： G01V1/34 ,  G01V1/30 ,  G01V1/36 ,  G01V1/28

    CPC分类号： G01V1/345 ,  G01V1/282 ,  G01V1/30 ,  G01V1/303 ,  G01V1/362 ,  G01V1/366 ,  G01V2210/22 ,  G01V2210/512 ,  G01V2210/57 ,  G01V2210/6222 ,  G01V2210/66 ,  G01V2210/74

    摘要： A method for use in seismic exploration comprises: accessing a set of seismic data representative of a subterranean geological formation and a subsurface attribute model of the subterranean geological formation; performing a wavefield extrapolation on the seismic data in the subsurface attribute model; applying the time-shift extended imaging condition to the extrapolated wavefields; forming shot-indexed, time shift gathers for each image pixel of the subsurface attribute model from the conditioned extrapolated wavefields; adaptively focusing the gathers; and stacking the adaptively focused gathers; and imaging the subterranean geological formation from the stacked, adaptively focused gathers. The method may, in some aspects, be realized by a computing apparatus programmed to perform the method or as a set of instructions encoded on a non-transitory program storage medium that, when executed by a computing apparatus, perform the method.

    摘要翻译： 一种用于地震勘探的方法包括：访问一组代表地下地质构造的地震资料和地下地质构造的地下属性模型; 在地下属性模型中对地震数据进行波场外推; 将时移扩展成像条件应用于外推波场; 对条件外推波场的地下属性模型的每个图像像素进行形成射出索引的时移; 自适应地集中聚集; 并堆叠自适应聚焦的聚集; 并从层叠的，自适应聚焦的聚集体中成像地下地质构造。 在一些方面，该方法可以被编程为执行方法或编码在非暂时性程序存储介质上的指令集的计算装置来实现，该计算装置在由计算装置执行时执行该方法。

    Method for eliminating spectral constraints of acquisition system and earth filtering effects
    8.
    发明授权
    Method for eliminating spectral constraints of acquisition system and earth filtering effects 有权
    消除采集系统频谱约束和地球滤波效应的方法

    公开(公告)号：US08600680B2

    公开(公告)日：2013-12-03

    申请号：US13066036

    申请日：2011-04-05

    申请人： Gregory Ernest Parkes ,  Stian Hegna ,  Anthony James Day

    发明人： Gregory Ernest Parkes ,  Stian Hegna ,  Anthony James Day

    IPC分类号： G01V1/28 ,  G01V1/48

    CPC分类号： G01V1/364 ,  G01V2210/1293 ,  G01V2210/1423 ,  G01V2210/22 ,  G01V2210/23 ,  G01V2210/56

    摘要： Recorded seismic data are represented as a convolution of operators representing a reflectivity series of the earth and a seismic wavelet. The recorded seismic wavelet is represented as a convolution of operators representing a receiver ghost, a source ghost, a ghost-free source system response, an earth filter response, and a receiver system response. The operator representing the receiver ghost is removed from the convolution representing the seismic wavelet. The operator representing the source ghost is removed from the convolution representing the seismic wavelet. The operator representing the ghost-free source response is removed from the convolution representing the seismic wavelet. The operator representing the earth filter response is removed from the convolution representing the seismic wavelet. The operator representing the seismic wavelet is removed from the convolution representing the recorded seismic data.

    摘要翻译： 记录的地震数据被表示为表示地球和地震小波的反射系列的运算符的卷积。 记录的地震小波被表示为代表接收机重影，源幽灵，无重影源系统响应，地球滤波器响应和接收机系统响应的运算符的卷积。 代表接收机重影的算子从表示地震小波的卷积中去除。 代表源幽灵的算子从表示地震小波的卷积中去除。 表示无重影源响应的运算符从代表地震小波的卷积中去除。 表示地球滤波器响应的算子从表示地震小波的卷积中去除。 代表地震小波的算子从表示记录的地震数据的卷积中去除。

    Method for correcting impulse response differences of hydrophones and geophones as well as geophone coupling to the water-bottom in dual-sensor, bottom-cable seismic operations
    9.
    发明授权
    Method for correcting impulse response differences of hydrophones and geophones as well as geophone coupling to the water-bottom in dual-sensor, bottom-cable seismic operations 失效
    在双传感器，底部电缆地震作业中校正水听器和地震检波器的冲击响应差异以及与水底的地震检波器耦合的方法

    公开(公告)号：US5235554A

    公开(公告)日：1993-08-10

    申请号：US849998

    申请日：1992-03-10

    申请人： Frederick J. Barr ,  Joe I. Sanders

    发明人： Frederick J. Barr ,  Joe I. Sanders

    IPC分类号： G01V1/36 ,  G01V1/38

    CPC分类号： G01V1/364 ,  G01V1/3808 ,  G01V2210/22

    摘要： In dual-sensor, bottom-cable marine seismic exploration where hydrophone/geophone pairs are deployed on the marine bottom, coupling imperfections between the geophones and the marine bottom contribute to differences between the impulse response of the geophones and the impulse response of the hydrophones. To correct for the coupling imperfection, a filter is designed which compensates for the inherent impulse response differences as well as response differences caused by the imperfect coupling. Preferably, the filter is designed using a calibration procedure prior to production shooting. First, the response of a hydrophone and geophone to a seismic wave is recorded. Then, these recorded responses are transformed into the frequency domain. Once transformed, the response of the hydrophone is divided by the response of the geophone to produce a filtering function. When the filtering function is applied to geophone signals during production shooting, the filter compensates the geophone signals to alleviate differences in response characteristics between the geophone signals and the hydrophone signals.

    摘要翻译： 在双传感器，底电缆海洋地震勘探中，水听器/地震检波器对部署在海底，耦合地震检波器与海底之间的缺陷有助于地震检波器的脉冲响应与水听器的脉冲响应之间的差异。 为了校正耦合缺陷，设计了一种滤波器，用于补偿固有的脉冲响应差异以及由不完美耦合引起的响应差异。 优选地，在生产拍摄之前使用校准程序设计过滤器。 首先，记录了水听器和地震检波器对地震波的响应。 然后，这些记录的响应被转换成频域。 一旦变换，水听器的响应被地震检波器的响应除以产生滤波功能。 当在生产拍摄期间将滤波功能应用于地震检波器信号时，滤波器补偿地震检波器信号，以减轻地震检波器信号和水听器信号之间的响应特性差异。