METHOD FOR PROCESSING BOREHOLE SEISMIC DATA
    3.
    发明申请
    METHOD FOR PROCESSING BOREHOLE SEISMIC DATA 审中-公开
    加工井眼地震数据的方法

    公开(公告)号:US20160131780A1

    公开(公告)日:2016-05-12

    申请号:US15000976

    申请日:2016-01-19

    申请人: Sigma Cubed, Inc.

    IPC分类号: G01V1/28 G01V1/42

    摘要: Seismic data recorded by subsurface seismic sensors placed in a borehole, such as an oil or gas well, are transformed via a process of upward wavefield propagation to pseudo-receivers at the surface of the earth. The seismic data thus transformed can be processed as though the data had been recorded by the pseudo-receivers at the surface rather than in the borehole where the data were actually recorded. This method accurately accounts for seismic source statics, anisotropy, and all velocity effects between the real receivers in the borehole and the pseudo-receivers at the surface of the earth.

    摘要翻译: 放置在钻孔中的地下地震传感器(例如油井或气井)记录的地震数据通过向上波场传播的过程转化为地球表面的伪接收器。 这样变换的地震数据可以像数据已经被表面上的伪接收机而不是在实际记录数据的钻孔中记录一样被处理。 这种方法准确地说明了井眼中的真实接收器与地表表面的伪接收器之间的地震源静力学,各向异性和所有速度效应。

    Model-based time-preserving tomography
    4.
    发明授权
    Model-based time-preserving tomography 有权
    基于模型的时间保留断层扫描

    公开(公告)号:US09207343B2

    公开(公告)日:2015-12-08

    申请号:US12042417

    申请日:2008-03-05

    IPC分类号: G01V1/28 G01V1/30

    摘要: A system and method for modeling seismic data using time preserving tomography including storing an initial set of parameter values representing an initial seismic data model. The initial seismic model may correspond to at least two or more ray pairs. Each ray pair may have a traveltime. An altered model may be generated by altering two or more parameter values in the initial set of parameter values for each of two or more ray pairs in the initial model. Altering one parameter value without altering the remaining of the two or more parameter values may correspond to a change in the traveltime of each of the ray pairs, while altering the two or more parameter values in combination typically corresponds to no net change in the traveltime of each of the ray pairs.

    摘要翻译: 一种用于使用时间维持断层摄影建模地震数据的系统和方法,包括存储表示初始地震数据模型的初始参数值集合。 初始地震模型可以对应于至少两个或更多个射线对。 每个射线对可能具有旅行时间。 可以通过在初始模型中的两个或更多个射线对中的每一个的参数值的初始集合中改变两个或更多个参数值来生成改变的模型。 改变一个参数值而不改变两个或更多个参数值的剩余部分可以对应于每个射线对的行进时间的变化,同时改变组合中的两个或更多个参数值通常对应于没有净移动 每个射线对。

    SPECULAR FILTER (SF) AND DIP ORIENTED PARTIAL IMAGING (DOPI) SEISMIC MIGRATION
    5.
    发明申请
    SPECULAR FILTER (SF) AND DIP ORIENTED PARTIAL IMAGING (DOPI) SEISMIC MIGRATION 有权
    典型滤波器(SF)和双向导向部分成像(DOPI)地震移动

    公开(公告)号:US20140293744A1

    公开(公告)日:2014-10-02

    申请号:US14230722

    申请日:2014-03-31

    发明人: QIE ZHANG

    IPC分类号: G01V1/36

    摘要: According to one embodiment, subsurface ray directions in beam migration or subsurface wave propagation directions in reverse time migrations are used to obtain additional Specular Filter (SF) and Dip Oriented Partial Imaging (DOPI) images. SF migration applies a specular imaging condition during migration with a pre-specified subsurface dip field. It boosts the S/N ratio in both images and gathers, by effectively removing migration noise. DOPI images are produced by decomposing a standard migration image according to subsurface dip inclination or/and dip azimuth groups, providing various views of the subsurface image. Both SF and DOPI migration images can supply valuable additional information compared to a standard migration image, and they can be efficiently generated during migration.

    摘要翻译: 根据一个实施例,使用反向时间偏移中的波束偏移或地下波传播方向中的地下射线方向获得附加的镜面反射(SF)和面向偏转成像(DOPI)图像。 SF迁移在迁移期间使用预先指定的地下倾角来应用镜面成像条件。 通过有效地消除迁移噪声,提高了图像和收集的S / N比。 DOPI图像通过根据地下倾角倾斜或/和倾角方位组分解标准迁移图像来产生,提供地下图像的各种视图。 与标准迁移映像相比,SF和DOPI迁移映像都可以提供有价值的附加信息,并且可以在迁移过程中高效地生成它们。

    RECIPROCAL METHOD TWO-WAY WAVE EQUATION TARGETED DATA SELECTION FOR SEISMIC ACQUISITION OF COMPLEX GEOLOGIC STRUCTURES
    7.
    发明申请
    RECIPROCAL METHOD TWO-WAY WAVE EQUATION TARGETED DATA SELECTION FOR SEISMIC ACQUISITION OF COMPLEX GEOLOGIC STRUCTURES 有权
    接收方式两路波方程目标数据选择用于地震采集复杂地质结构

    公开(公告)号:US20120300585A1

    公开(公告)日:2012-11-29

    申请号:US13482888

    申请日:2012-05-29

    IPC分类号: G01V1/28 G01V1/20

    摘要: The invention relates to seismic surveying where complex geologies are likely to create data that is confusing or ambiguous for a conventional matrix of acquisition source points and receiver locations. With some understanding of the geological substructure, the acquisition source points and receiver locations that optimize the imaging may be found by using a reciprocal two-way wave equation propagation method coupled with the best geologic model available. With this, the acquisition source points and receiver locations that optimize the imaging may be used in seismic survey to better resolve the substructure and avoid the inclusion of data that obscures understanding of the substructure.

    摘要翻译: 本发明涉及地震测量,其中复杂的地质学可能产生对于传统的采集源点和接收机位置的混合或不明确的数据。 通过对地质子结构的一些了解,优化成像的采集源点和接收器位置可以通过使用可逆的双向波方程传播方法和可用的最佳地质模型来发现。 因此,优化成像的采集源点和接收器位置可用于地震勘测,以更好地解决子结构,并避免包含掩盖对子结构的理解的数据。

    Q Tomography Method
    8.
    发明申请
    Q Tomography Method 有权
    Q层析成像方法

    公开(公告)号:US20110273961A1

    公开(公告)日:2011-11-10

    申请号:US13071255

    申请日:2011-03-24

    申请人: Wenyi Hu

    发明人: Wenyi Hu

    IPC分类号: G01V1/28

    摘要: Method for reconstructing subsurface Q models (110) from seismic data (10) by performing ray-based (60), centroid frequency shift (50) Q tomography. The seismic source waveform's amplitude spectrum is approximated by a frequency-weighted exponential function of frequency (40), having two parameters to adjust to fit the frequency shift data, thereby providing a better fit to various asymmetric source amplitude spectra. Box constraints may be used in the optimization routine, and a multi-index active-set method used in velocity tomography is a preferred technique for implementing the box constraints (100).

    摘要翻译: 通过执行基于射线的(60)重心频移(50)Q层析成像,从地震数据(10)重建地下Q模型(110)的方法。 地震源波形的幅度谱由频率(40)的频率加权指数函数近似,具有两个参数进行调整以适应频移数据,从而提供更好的拟合各种非对称源幅度谱。 盒子约束可以在优化程序中使用,并且用于速度断层摄影的多索引活动集方法是用于实现框限制的优选技术(100)。

    Specular filter (SF) and dip oriented partial imaging (DOPI) seismic migration

    公开(公告)号:US09651694B2

    公开(公告)日:2017-05-16

    申请号:US14230722

    申请日:2014-03-31

    发明人: Qie Zhang

    IPC分类号: G01V1/36 G01V1/28

    摘要: According to one embodiment, subsurface ray directions in beam migration or subsurface wave propagation directions in reverse time migrations are used to obtain additional Specular Filter (SF) and Dip Oriented Partial Imaging (DOPI) images. SF migration applies a specular imaging condition during migration with a pre-specified subsurface dip field. It boosts the S/N ratio in both images and gathers, by effectively removing migration noise. DOPI images are produced by decomposing a standard migration image according to subsurface dip inclination or/and dip azimuth groups, providing various views of the subsurface image. Both SF and DOPI migration images can supply valuable additional information compared to a standard migration image, and they can be efficiently generated during migration.

    MODEL-BASED TIME-PRESERVING TOMOGRAPHY
    10.
    发明申请
    MODEL-BASED TIME-PRESERVING TOMOGRAPHY 审中-公开
    基于模型的时间保留图像

    公开(公告)号:US20160154130A1

    公开(公告)日:2016-06-02

    申请号:US14961049

    申请日:2015-12-07

    IPC分类号: G01V1/36 G01V1/28

    摘要: A system and method for modeling seismic data using time preserving tomography including storing an initial set of parameter values representing an initial seismic data model. The initial seismic model may correspond to at least two or more ray pairs. Each ray pair may have a traveltime. An altered model may be generated by altering two or more parameter values in the initial set of parameter values for each of two or more ray pairs in the initial model. Altering one parameter value without altering the remaining of the two or more parameter values may correspond to a change in the traveltime of each of the ray pairs, while altering the two or more parameter values in combination typically corresponds to no net change in the traveltime of each of the ray pairs.

    摘要翻译: 一种用于使用时间维持断层摄影建模地震数据的系统和方法,包括存储表示初始地震数据模型的初始参数值集合。 初始地震模型可以对应于至少两个或更多个射线对。 每个射线对可能具有旅行时间。 可以通过在初始模型中的两个或更多个射线对中的每一个的参数值的初始集合中改变两个或更多个参数值来生成改变的模型。 改变一个参数值而不改变两个或更多个参数值的剩余部分可以对应于每个射线对的行进时间的变化,同时改变组合中的两个或更多个参数值通常对应于没有净移动 每个射线对。