Method for separating seismic signals from two or more distinct sources
    1.
    发明授权
    Method for separating seismic signals from two or more distinct sources 有权
    从两个或更多不同来源分离地震信号的方法

    公开(公告)号:US06882938B2

    公开(公告)日:2005-04-19

    申请号:US10630385

    申请日:2003-07-30

    IPC分类号: G01V1/36 G01V1/00

    CPC分类号: G01V1/364 G01V2210/20

    摘要: A method is disclosed for separating energy resulting from actuating at least two different seismic energy sources from seismic signals. The sources are actuated to provide a variable time delay between successive actuations of a first one and a second one of the sources. The method includes sorting the seismic signals such that events therein resulting from actuations of the first source are substantially coherent in all spatial directions, coherency filtering the first source coherency sorted signals, sorting the seismic signals such that events therein resulting from actuations of the second source are substantially coherent in all spatial directions, and coherency filtering the second source coherency sorted signals.

    摘要翻译: 公开了一种用于分离由地震信号驱动至少两种不同地震能量源所产生的能量的方法。 源被致动以在第一个和第二个源的连续致动之间提供可变的时间延迟。 该方法包括对地震信号进行排序,使得其中由第一源的致动所产生的事件在所有空间方向上基本一致,一致性滤除第一源相关性排序的信号,对地震信号进行排序,使得其中由第二源的致动引起的事件 在所有空间方向上基本相干,并且相关性对第二源相关性排序信号进行滤波。

    Method for three dimensional seismic travel time tomography in transversely isotropic media
    2.
    发明授权
    Method for three dimensional seismic travel time tomography in transversely isotropic media 有权
    横向各向同性介质三维地震行程时间层析成像方法

    公开(公告)号:US07663972B2

    公开(公告)日:2010-02-16

    申请号:US12070966

    申请日:2008-02-22

    IPC分类号: G01V1/00

    摘要: A method for estimating seismic velocities in vertically transversely isotropic media includes generating an initial estimate of vertical interval velocity and interval normal moveout velocity with respect to depth from seismic data. An initial estimate is generated of a first anisotropy parameter with respect to depth. The first anisotropy parameter is related to the interval normal moveout velocity and the interval vertical velocity. An initial estimate is generated with respect to depth of a second anisotropy parameter. The second anisotropy parameter is related to the first anisotropy parameter and an interval anelliptic parameter. A first tomographic inversion is performed with respect to the interval normal moveout velocity and the second anisotropy parameter at a constant value of the first anisotropy parameter until travel time differentials reach minimum values. Layer depths are adjusted with the initial estimate of vertical interval velocity. Using values of the second anisotropy parameter determined in the first tomographic inversion, a second tomographic inversion is performed of interval normal moveout velocity and the first anisotropy parameter with respect to depth. The adjusted layer depths, interval normal moveout velocities and interval vertical velocities are again adjusted and interval anelliptic parameters are calculated from the second tomographic inversion.

    摘要翻译: 用于估计垂直横向各向同性介质中的地震速度的方法包括相对于地震数据的深度产生垂直间隔速度和间隔正常移动速度的初始估计。 产生关于深度的第一各向异性参数的初始估计。 第一个各向异性参数与间隔正常移动速度和间隔垂直速度有关。 相对于第二各向异性参数的深度产生初始估计。 第二个各向异性参数与第一各向异性参数和间隔椭圆参数有关。 在第一各向异性参数的恒定值下,相对于间隔正常移动速度和第二各向异性参数执行第一层析反转,直到行进时间差达到最小值。 层深度用垂直间隔速度的初始估计来调整。 使用在第一层析反转中确定的第二各向异性参数的值,对间隔正常移动速度和相对于深度的第一各向异性参数执行第二断层反演。 再次调整调整后的层深度,间隔正常移动速度和间隔垂直速度,并从第二层析倒置计算间隔椭圆参数。

    Kirchhoff prestack time migration method for PS waves
    3.
    发明授权
    Kirchhoff prestack time migration method for PS waves 有权
    基波霍夫叠前时间偏移方法

    公开(公告)号:US07447113B2

    公开(公告)日:2008-11-04

    申请号:US10958827

    申请日:2004-10-05

    IPC分类号: G01V1/24 G01V1/28

    CPC分类号: G01V1/284

    摘要: A method is disclosed for migrating seismic data which includes determining travel time of a compressional wave from a source location to a scatter point, taking into account ray bending. Travel time of a shear wave from the scatter point to a receiver location is determined, taking into account ray bending at the interfaces between subsurface strata. The determined travel times are then used to migrate the seismic data. In one embodiment, the travel times take account of vertically transversely isotropic media with a vertical symmetry axis.

    摘要翻译: 公开了一种用于迁移地震数据的方法,其包括确定压缩波从源位置到散射点的行进时间,考虑到射线弯曲。 考虑到地下地层之间的界面处的射线弯曲,确定从散射点到接收器位置的剪切波的行进时间。 然后将确定的行进时间用于迁移地震数据。 在一个实施例中,行进时间考虑到具有垂直对称轴的垂直横向各向同性介质。

    Method for three dimensional seismic travel time tomography in transversely isotropic media
    4.
    发明申请
    Method for three dimensional seismic travel time tomography in transversely isotropic media 有权
    横向各向同性介质三维地震行程时间层析成像方法

    公开(公告)号:US20090213692A1

    公开(公告)日:2009-08-27

    申请号:US12070966

    申请日:2008-02-22

    IPC分类号: G01V1/28

    摘要: A method for estimating seismic velocities in vertically transversely isotropic media includes generating an initial estimate of vertical interval velocity and interval normal moveout velocity with respect to depth from seismic data. An initial estimate is generated of a first anisotropy parameter with respect to depth. The first anisotropy parameter is related to the interval normal moveout velocity and the interval vertical velocity. An initial estimate is generated with respect to depth of a second anisotropy parameter. The second anisotropy parameter is related to the first anisotropy parameter and an interval anelliptic parameter. A first tomographic inversion is performed with respect to the interval normal moveout velocity and the second anisotropy parameter at a constant value of the first anisotropy parameter until travel time differentials reach minimum values. Layer depths are adjusted with the initial estimate of vertical interval velocity. Using values of the second anisotropy parameter determined in the first tomographic inversion, a second tomographic inversion is performed of interval normal moveout velocity and the first anisotropy parameter with respect to depth. The adjusted layer depths, interval normal moveout velocities and interval vertical velocities are again adjusted and interval anelliptic parameters are calculated from the second tomographic inversion.

    摘要翻译: 用于估计垂直横向各向同性介质中的地震速度的方法包括相对于地震数据的深度产生垂直间隔速度和间隔正常移动速度的初始估计。 产生关于深度的第一各向异性参数的初始估计。 第一个各向异性参数与间隔正常移动速度和间隔垂直速度有关。 相对于第二各向异性参数的深度产生初始估计。 第二个各向异性参数与第一各向异性参数和间隔椭圆参数有关。 在第一各向异性参数的恒定值下,相对于间隔正常移动速度和第二各向异性参数执行第一层析反转,直到行进时间差达到最小值。 层深度用垂直间隔速度的初始估计来调整。 使用在第一层析反转中确定的第二各向异性参数的值,对间隔正常移动速度和相对于深度的第一各向异性参数执行第二断层反演。 再次调整调整后的层深度,间隔正常移动速度和间隔垂直速度,并从第二层析倒置计算间隔椭圆参数。

    Horizon-based residual depth migration velocity analysis
    5.
    发明授权
    Horizon-based residual depth migration velocity analysis 失效
    基于地平面的残余深度偏移速度分析

    公开(公告)号:US07065004B2

    公开(公告)日:2006-06-20

    申请号:US10829549

    申请日:2004-04-22

    IPC分类号: G01V1/30 G01V1/36

    CPC分类号: G01V1/28 G01V2210/51

    摘要: A method is disclosed for processing seismic data. The method includes prestack depth migrating the seismic data to generate common image gathers using an initial velocity-depth model. Horizons in the migrated seismic data are selected. Residual migration velocity analysis in the depth-offset domain is performed with respect to each selected horizon, and the velocity-depth model is updated based on the residual migration velocity analysis.

    摘要翻译: 公开了一种用于处理地震数据的方法。 该方法包括叠前深度迁移地震数据,以使用初始速度深度模型生成公共图像采集。 选择迁移的地震资料中的地平线。 对于每个选定的水平线,对深度偏移域进行残余迁移速度分析,并根据剩余迁移速度分析更新速度深度模型。

    System and method of a marine survey using vertically oriented sensor streamers
    6.
    发明授权
    System and method of a marine survey using vertically oriented sensor streamers 有权
    使用垂直定向传感器拖缆进行海洋勘测的系统和方法

    公开(公告)号:US09086502B2

    公开(公告)日:2015-07-21

    申请号:US13154643

    申请日:2011-06-07

    申请人: Ruben D. Martinez

    发明人: Ruben D. Martinez

    摘要: Marine surveys using vertically oriented sensor streamers. At least some embodiments are vertically oriented sensor streamers where each sensor streamer includes: an elongated outer jacket; a plurality of hydrophones coupled to the outer jacket, each hydrophone of the plurality of hydrophones longitudinally spaced along the outer jacket; a plurality of three-axis motion detectors, each three-axis motion detector of the plurality of three-axis motion detectors longitudinally spaced along the outer jacket; and a plurality of electrodes coupled to the outer jacket, each electrode of the plurality of electrodes longitudinally spaced along the outer jacket, and the plurality of electrodes electrically exposed outside the outer jacket. Other embodiments may also comprise a plurality of electrodes on each sensor streamer, the electrodes for measuring electromagnetic energy.

    摘要翻译: 海洋调查使用垂直方向的传感器拖缆。 至少一些实施例是垂直定向的传感器拖缆,其中每个传感器拖缆包括:细长的外护套; 耦合到所述外护套的多个水听器,所述多个水听器的每个水听器沿着所述外护套纵向间隔开; 多个三轴运动检测器,所述多个三轴运动检测器中的每个三轴运动检测器沿着所述外护套纵向间隔开; 以及耦合到所述外护套的多个电极,所述多个电极中的每个电极沿着所述外护套纵向间隔开,并且所述多个电极电外露在所述外护套的外部。 其他实施例还可以包括在每个传感器拖缆上的多个电极,用于测量电磁能的电极。

    Weighted slant stack for attenuating seismic noise

    公开(公告)号:US06574567B2

    公开(公告)日:2003-06-03

    申请号:US09767650

    申请日:2001-01-23

    申请人: Ruben D. Martinez

    发明人: Ruben D. Martinez

    IPC分类号: G01V128

    CPC分类号: G01V1/36 G01V2210/32

    摘要: A method and apparatus are disclosed for attenuating noise in seismic data including a plurality of input traces. The method includes transforming the seismic data from the space-time domain into the slant-stack domain. Seismic data having a preselected characteristic is excluded when the transforming into the slant-stack domain. The transformed data is inverse transformed from the slant-stack domain into the time space domain. The method and apparatus may include anti-alias filtering the seismic traces. The method and apparatus may include p-anti-alias filtering seismic traces.

    Determination of particle displacement or velocity from particle acceleration measurements
    8.
    发明授权
    Determination of particle displacement or velocity from particle acceleration measurements 有权
    粒子加速度测量中颗粒位移或速度的确定

    公开(公告)号:US09448318B2

    公开(公告)日:2016-09-20

    申请号:US13409035

    申请日:2012-02-29

    申请人: Ruben D. Martinez

    发明人: Ruben D. Martinez

    IPC分类号: G01V1/00 G01V1/36 G01V1/28

    摘要: Techniques are described for determining particle displacement or particle velocity data from particle acceleration measurements. In an embodiment, an apparatus comprises an interface configured to received particle acceleration data, one or more processors, and one or more storage media. The one or more storage media store instructions for determining one or more of particle velocity data or particle displacement data, based upon the particle acceleration data, by processing the particle acceleration data using a filter that at least approximates a Wiener filter and that uses one or more damping factors selected to provide stability in the presence of noise in the particle acceleration data.

    摘要翻译: 描述了用于确定粒子加速度测量的粒子位移或粒子速度数据的技术。 在一个实施例中,装置包括被配置为接收粒子加速度数据,一个或多个处理器和一个或多个存储介质的接口。 一个或多个存储介质存储用于基于粒子加速度数据确定粒子速度数据或粒子位移数据中的一个或多个的指令,通过使用至少近似维纳滤波器的滤波器处理粒子加速度数据并使用其中的一个或 选择更多的阻尼因子以在颗粒加速度数据中存在噪声提供稳定性。

    DETERMINATION OF PARTICLE DISPLACEMENT OR VELOCITY FROM PARTICLE ACCELERATION MEASUREMENTS
    9.
    发明申请
    DETERMINATION OF PARTICLE DISPLACEMENT OR VELOCITY FROM PARTICLE ACCELERATION MEASUREMENTS 有权
    从粒子加速度测定中确定颗粒位移或速度

    公开(公告)号:US20130226493A1

    公开(公告)日:2013-08-29

    申请号:US13409035

    申请日:2012-02-29

    申请人: Ruben D. Martinez

    发明人: Ruben D. Martinez

    IPC分类号: G06F19/00 G01P21/02

    摘要: Techniques are described for determining particle displacement or particle velocity data from particle acceleration measurements. In an embodiment, an apparatus comprises an interface configured to received particle acceleration data, one or more processors, and one or more storage media. The one or more storage media store instructions for determining one or more of particle velocity data or particle displacement data, based upon the particle acceleration data, by processing the particle acceleration data using a filter that at least approximates a Wiener filter and that uses one or more damping factors selected to provide stability in the presence of noise in the particle acceleration data.

    摘要翻译: 描述了用于确定粒子加速度测量的粒子位移或粒子速度数据的技术。 在一个实施例中,装置包括被配置为接收粒子加速度数据,一个或多个处理器和一个或多个存储介质的接口。 一个或多个存储介质存储用于基于粒子加速度数据确定粒子速度数据或粒子位移数据中的一个或多个的指令,通过使用至少近似维纳滤波器的滤波器处理粒子加速度数据并使用其中的一个或 选择更多的阻尼因子以在颗粒加速度数据中存在噪声提供稳定性。

    Method for stable estimation of anisotropic parameters for P-wave prestack imaging
    10.
    发明授权
    Method for stable estimation of anisotropic parameters for P-wave prestack imaging 有权
    P波叠前成像各向异性参数的稳定估计方法

    公开(公告)号:US06985405B2

    公开(公告)日:2006-01-10

    申请号:US10692198

    申请日:2003-10-23

    IPC分类号: G01V1/36

    CPC分类号: G01V1/284 G01V1/303

    摘要: A method is disclosed for determining interval anisotropic parameters. The method includes determining normal moveout (NMO) velocities and effective anelliptical parameters from seismic data traces. The NMO velocities are processed to obtain interval NMO velocities. The NMO velocities, effective anelliptical parameters and interval NMO velocities are inverted to obtain the interval anisotropic parameters. In one embodiment, the inversion includes damped least squares. In one embodiment, the inversion is preconditioned.

    摘要翻译: 公开了一种用于确定间隔各向异性参数的方法。 该方法包括从地震数据轨迹确定正常移动(NMO)速度和有效的椭圆参数。 处理NMO速度以获得间隔NMO速度。 NMO速度,有效的椭圆参数和间隔NMO速度被反转以获得间隔各向异性参数。 在一个实施例中,反演包括阻尼最小二乘法。 在一个实施例中,预处理反演。