SEISMIC DATA ACQUISITION AND PROCESSING QUALITY CONTROL
    1.
    发明申请
    SEISMIC DATA ACQUISITION AND PROCESSING QUALITY CONTROL 有权
    地震数据采集和处理质量控制

    公开(公告)号:US20110158046A1

    公开(公告)日:2011-06-30

    申请号:US12649869

    申请日:2009-12-30

    CPC classification number: G01V1/28 G01V2200/14

    Abstract: The present invention relates to producing a quality control measure for use during data acquisition and/or data processing of, preferably, seismic data. While or after obtaining the data, a surface consistent decomposition of the data is performed. From the surface consistent decomposition, one may compute a decomposed logarithmic spectra, and from the decomposed logarithmic spectra, one may compute one or more residua. An error attribute based on the one or more residua can be formulated, analyzed, and output. The error attribute can be used as a quality control measure or the analysis result can be used to produce a quality control measure.

    Abstract translation: 本发明涉及生产用于数据采集和/或数据处理(优选地震数据)的质量控制措施。 在获得数据之后或之后,执行数据的表面一致分解。 从表面一致分解,可以计算分解的对数光谱,并且从分解的对数光谱可以计算一个或多个残差。 可以制定,分析和输出基于一个或多个残差的错误属性。 误差属性可用作质量控制措施,或分析结果可用于产生质量控制措施。

    Attenuating unwanted signal using interferometry techniques
    2.
    发明授权
    Attenuating unwanted signal using interferometry techniques 失效
    使用干涉测量技术衰减不需要的信号

    公开(公告)号:US07596055B2

    公开(公告)日:2009-09-29

    申请号:US11567206

    申请日:2006-12-05

    CPC classification number: G01V1/364

    Abstract: A method to attenuate unwanted signals in seismic data using seismic interferometry techniques. In one implementation, seismograms may be converted into seismic interferograms. In the seismic interferogram domain, unwanted signals may be attenuated by various techniques, such as muting, filtering and the like. The modified seismic interferograms may then be converted back into seismograms with the unwanted signals having been attenuated.

    Abstract translation: 一种使用地震干涉测量技术来衰减地震数据中不需要的信号的方法。 在一个实现中,地震图可以被转换成地震干涉图。 在地震干涉图中,不想要的信号可以通过诸如静音,滤波等的各种技术来衰减。 然后,修改的地震干涉图可以被转换回地震图,而不需要的信号已被衰减。

    Seismogram correction for absorption effects
    3.
    发明授权
    Seismogram correction for absorption effects 失效
    地震记录校正吸收效果

    公开(公告)号:US07574303B2

    公开(公告)日:2009-08-11

    申请号:US11760629

    申请日:2007-06-08

    Applicant: Ralf Ferber

    Inventor: Ralf Ferber

    CPC classification number: G01V1/364 G01V2210/58

    Abstract: Correcting seismograms to compensate for absorption or dissipative effects that occur in the earth. In one implementation, a ratio of traveltime (t) to absorption parameter (Q) may be computed for each seismogram. The ratio may be referred to as R. Further, the ratio may be computed for a predetermined set of traveltimes. As a result, a system of linear equations may be generated, where each ratio is represented by a linear equation having a number of unknown components. The system of linear equations may then be solved for the unknown components. The solved components may then be recombined or added to generate an estimate of R. In one implementation, only a portion of the solved components may be added. The seismograms may then be corrected using the estimate of R. As such, the seismograms may be corrected for absorption effects in a surface consistent manner.

    Abstract translation: 校正地震图以补偿地球中发生的吸收或耗散效应。 在一个实施方案中,可以针对每个地震图计算旅行时间(t)与吸收参数(Q)的比率。 该比率可以被称为R.此外,可以针对预定的行程组计算该比率。 结果,可以产生线性方程组,其中每个比率由具有多个未知分量的线性方程表示。 然后可以为未知组件求解线性方程组。 然后可以将所解决的组件重新组合或添加以产生R的估计。在一个实现中,可以仅添加一部分被求解的组件。 然后可以使用R的估计来校正地震图。因此,可以以表面一致的方式校正地震图的吸收效应。

    Method for Estimating Absorption Parameter Q(T)
    4.
    发明申请
    Method for Estimating Absorption Parameter Q(T) 失效
    估计吸收参数Q(T)的方法

    公开(公告)号:US20090080287A1

    公开(公告)日:2009-03-26

    申请号:US11573964

    申请日:2004-08-27

    Applicant: Ralf Ferber

    Inventor: Ralf Ferber

    CPC classification number: G01V1/36 G01V2210/584

    Abstract: A method and apparatus for a method for generating an estimated value of absorption parameter Q(t). In one embodiment, the method includes receiving an input seismic trace, applying a time variant Fourier transform to the input seismic trace to generate a time variant amplitude spectrum of the input seismic trace, dividing the natural logarithm of the time variant amplitude spectrum by −πf, and performing a power series approximation to the result with an index starting from one to generate an estimated value of R(t). R(t) is a ratio between traveltime t and the absorption parameter Q(t). The method further includes dividing t by R(t) to generate the estimated value of the absorption parameter Q(t).

    Abstract translation: 一种用于产生吸收参数Q(t)的估计值的方法的方法和装置。 在一个实施例中,该方法包括接收输入的地震轨迹,对输入的地震轨迹应用时变傅立叶变换以产生输入的地震轨迹的时变幅度谱,将时变幅度谱的自然对数除以-pif 并且以从1开始的索引对结果执行幂级数逼近以产生估计值R(t)。 R(t)是行进时间t和吸收参数Q(t)之间的比值。 该方法还包括将t除以R(t)以产生吸收参数Q(t)的估计值。

    PROCESSING SEISMIC DATA USING INTERFEROMETRY TECHNIQUES
    5.
    发明申请
    PROCESSING SEISMIC DATA USING INTERFEROMETRY TECHNIQUES 失效
    使用干涉技术处理地震数据

    公开(公告)号:US20090024328A1

    公开(公告)日:2009-01-22

    申请号:US12239775

    申请日:2008-09-27

    CPC classification number: G01V1/36

    Abstract: Method for processing seismic data. In one implementation, the method includes converting a common midpoint (CMP) gather of seismograms into one or more interferogram common midpoint (ICMP) gathers, generating a semblance spectrum for each ICMP gather, stacking the semblance spectrum from each ICMP gather to generate a combined semblance spectrum and deriving a normal moveout (NMO) velocity profile from the combined semblance spectrum.

    Abstract translation: 地震数据处理方法 在一个实现中,该方法包括将地震图的公共中点(CMP)集合转换成一个或多个干涉图公共中点(ICMP)集合,为每个ICMP集合生成相似光谱,从每个ICMP集合堆叠相似光谱以产生组合 相似光谱,并从组合的相似光谱导出正常的移动(NMO)速度分布。

    Processing seismic data using interferometry techniques
    6.
    发明授权
    Processing seismic data using interferometry techniques 失效
    使用干涉测量技术处理地震数据

    公开(公告)号:US07447115B2

    公开(公告)日:2008-11-04

    申请号:US11567205

    申请日:2006-12-05

    CPC classification number: G01V1/36

    Abstract: Method for processing seismic data. In one implementation, the method includes converting a common midpoint (CMP) gather of seismograms into one or more interferogram common midpoint (ICMP) gathers, generating a semblance spectrum for each ICMP gather, stacking the semblance spectrum from each ICMP gather to generate a combined semblance spectrum and deriving a normal moveout (NMO) velocity profile from the combined semblance spectrum.

    Abstract translation: 地震数据处理方法 在一个实现中,该方法包括将地震图的公共中点(CMP)集合转换成一个或多个干涉图公共中点(ICMP)集合,为每个ICMP集合生成相似光谱,从每个ICMP集合堆叠相似光谱以产生组合 相似光谱,并从组合的相似光谱导出正常的移动(NMO)速度分布。

    ATTENUATING UNWANTED SIGNAL USING INTERFEROMETRY TECHNIQUES
    7.
    发明申请
    ATTENUATING UNWANTED SIGNAL USING INTERFEROMETRY TECHNIQUES 失效
    使用干涉技术来衰减未使用的信号

    公开(公告)号:US20080130410A1

    公开(公告)日:2008-06-05

    申请号:US11567206

    申请日:2006-12-05

    CPC classification number: G01V1/364

    Abstract: A method to attenuate unwanted signals in seismic data using seismic interferometry techniques. In one implementation, seismograms may be converted into seismic interferograms. In the seismic interferogram domain, unwanted signals may be attenuated by various techniques, such as muting, filtering and the like. The modified seismic interferograms may then be converted back into seismograms with the unwanted signals having been attenuated.

    Abstract translation: 一种使用地震干涉测量技术来衰减地震数据中不需要的信号的方法。 在一个实现中,地震图可以被转换成地震干涉图。 在地震干涉图中,不想要的信号可以通过诸如静音,滤波等的各种技术来衰减。 然后,修改的地震干涉图可以被转换回地震图,而不需要的信号已被衰减。

    Computing an absorption parameter for a mode-converted seismic wave
    8.
    发明授权
    Computing an absorption parameter for a mode-converted seismic wave 失效
    计算模式转换地震波的吸收参数

    公开(公告)号:US07382683B1

    公开(公告)日:2008-06-03

    申请号:US11638861

    申请日:2006-12-14

    CPC classification number: G01V1/36

    Abstract: To survey a subterranean structure, measured seismic data is processed using an algorithm for deriving a single-mode absorption parameter. A first absorption parameter for a mode-converted seismic wave is computed based on an output of the algorithm. The first absorption parameter represents an absorption effect of the mode-converted seismic wave by the subterranean structure, where the mode-converted seismic wave is reflected from the subterranean structure in response to a source seismic wave of a different mode than the mode-converted seismic wave.

    Abstract translation: 为了测量地下结构,使用用于导出单模吸收参数的算法来处理测量的地震数据。 基于算法的输出计算模式转换地震波的第一吸收参数。 第一吸收参数表示地下结构对模式转换的地震波的吸收效应,其中模式转换的地震波响应于与模式转换的地震不同的模式的源地震波从地下结构反射 波。

    Method of attenuating noise in three dimensional seismic data using a projection filter
    9.
    发明授权
    Method of attenuating noise in three dimensional seismic data using a projection filter 失效
    使用投影滤波器对三维地震数据中的噪声进行衰减的方法

    公开(公告)号:US06668228B1

    公开(公告)日:2003-12-23

    申请号:US09889239

    申请日:2001-10-09

    CPC classification number: G01V1/364 G01V2210/32 G01V2210/3246

    Abstract: A method of attenuating noise in three dimensional seismic data using a projection algorithm is disclosed. A frequency—space—space (“f-xy”) projection algorithm is used which is a generalization of the f-x projection algorithm. The predictability of the seismic signals in the f-xy domain constitutes the basis of the algorithm. Specifically it is demonstrated that if the seismic events are planar in the t-xy domain, then in the f-xy domain they consist of predictable signals in the xy-plane for each frequency f. A crucial step of the 2-D spectral factorization is achieved through the helical coordinate transformation. In addition to the disclosed general algorithm for arbitrary coherent noise, a specialized algorithm for random noise is disclosed. It has been found that the disclosed projection algorithm is effective even in extreme cases of poor signal to noise ratio. The algorithm is also signal preserving when the predictability assumptions hold.

    Abstract translation: 公开了使用投影算法来衰减三维地震数据中的噪声的方法。 使用频率空间(“f-xy”)投影算法,这是f-x投影算法的概括。 f-xy域中地震信号的可预测性构成了该算法的基础。 具体地说,如果地震事件在t-xy域是平面的,那么在f-xy域中,它们由每个频率f的xy平面中的可预测信号组成。 通过螺旋坐标变换实现2-D频谱分解的关键步骤。 除了公开的用于任意相干噪声的通用算法之外,还公开了一种用于随机噪声的专用算法。 已经发现所公开的投影算法即使在极差的信噪比的情况下也是有效的。 当可预测性假设成立时,该算法也是信号保留。

    Attenuating sea-surface ghost wave effects in seismic data
    10.
    发明授权
    Attenuating sea-surface ghost wave effects in seismic data 有权
    在地震数据中衰减海面鬼影效应

    公开(公告)号:US08949030B2

    公开(公告)日:2015-02-03

    申请号:US13194403

    申请日:2011-07-29

    Applicant: Ralf Ferber

    Inventor: Ralf Ferber

    CPC classification number: G01V1/36 G01V1/38 G01V1/3808 G01V2210/52 G01V2210/56

    Abstract: A method for processing seismic data. The method includes receiving the seismic data acquired by at least two receivers that are disposed at different depths. The method may then time-align the seismic data, collect a portion of the time-aligned seismic data into a gather and sum the collected time-aligned seismic data in the gather. After summing the collected time-aligned seismic data in the gather, the method may widen a spectrum of the summed seismic data and generate an image of subsurface formations in the earth based on the widened spectrum.

    Abstract translation: 一种地震数据处理方法。 该方法包括接收由设置在不同深度的至少两个接收器获取的地震数据。 然后,该方法可以对地震数据进行时间对准,将一部分时间对齐的地震数据收集起来,并将收集的采集的时间对齐的地震数据求和。 在收集采集的时间对齐地震数据的总结之后,该方法可以扩展相加的地震数据的频谱,并且基于加宽的频谱在地球中产生地下地层的图像。

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