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1.发明申请公开(公告)号：US20130121109A1
公开(公告)日：2013-05-16
申请号：US13293832
申请日：2011-11-10
IPC分类号： G01V1/38
CPC分类号： G01V1/3808 , G01V1/36 , G01V1/3861 , G01V2210/324 , G01V2210/52 , G01V2210/56
摘要： Seismic data are obtained by recording simultaneously in seismic streamers, acquired by activating approximately simultaneously two or more seismic sources towed at two positions in the vicinity of seismic streamers. A residual is updated iteratively for an inversion solution for the activations of the two or more seismic sources. The iterative updating of the residual utilizes a sequence of overlapping temporal windows containing reflection events and utilizes normal moveout corrections based on largest reflection events in each temporal window. A final updated residual is added to a final updated model result.
摘要翻译： 地震数据通过同时记录在地震拖缆中获得，通过大致同时地在地震拖缆附近的两个位置处拖曳两个或更多个地震源获得。 对于两个或更多个地震源的激活的反演解，迭代地更新残差。 残差的迭代更新使用包含反射事件的重叠时间窗口序列，并且在每个时间窗口中基于最大反射事件利用正常的移出校正。 最终更新的残差被添加到最终更新的模型结果中。
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公开(公告)号：US08279706B2
公开(公告)日：2012-10-02
申请号：US12653099
申请日：2009-12-07
申请人： Roald G. van Borselen , Christina D. Riyanti , Christopher P. Page , Jacob T. Fokkema , Peter M. van den Berg
发明人： Roald G. van Borselen , Christina D. Riyanti , Christopher P. Page , Jacob T. Fokkema , Peter M. van den Berg
IPC分类号： G01V1/38
摘要： Seismic data recorded in a marine streamer are obtained, sorted as a common receiver gather. A complex Laplace frequency parameter is used to transform the seismic data from a space-time domain to a spectral domain. An iterative conjugate gradient scheme, using a physically-based preconditioner, is applied to the transformed seismic data, to provide a least squares solution to a normal set of equations for a source deghosting system of equations. The solution is inverse-transformed back to a space-time domain to provide source deghosted seismic data, which is useful for imaging the earth's subsurface.
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3.发明申请Method for dynamic aperture determination for three-dimensional surface-related multiple elimination 有权用于三维表面相关多重消除的动态孔径测定方法公开(公告)号：US20100329079A1
公开(公告)日：2010-12-30
申请号：US12459329
申请日：2009-06-30
IPC分类号： G01V1/28
CPC分类号： G01V1/364 , G01V2210/56
摘要： Dips are calculated for a series of sets of adjacent multiple contribution traces, from seismic data representative of subsurface formations, in the vicinity of a boundary of an aperture of a multiple contribution gather, the seismic data acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy. The boundary of the aperture of the multiple contribution gather is recursively extended, based on the calculated dips. Multiple contribution traces in the multiple contribution gather with the extended aperture boundary are stacked to generate predicted multiple traces. The predicted multiple traces are subtracted from the seismic data to generate surface-related multiple attenuated data useful for imaging the subsurface formations.
摘要翻译： 对于一系列相邻的多重贡献迹线，从代表地下地层的地震数据，在多重贡献收集的孔径的边界附近计算出一系列相对于多个贡献轨迹的地震数据， 要评估的地球表面的地面，地震传感器响应于地震能产生电信号和光信号中的至少一个。 基于计算出的下降，多重贡献集合的孔径的边界被递归地扩展。 叠加具有扩展孔径边界的多重贡献中的多个贡献迹线被堆叠以产生预测的多个迹线。 从地震数据中减去预测的多条迹线，以产生对地下地层成像有用的表面相关多重衰减数据。
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4.发明授权Dip-based corrections for data reconstruction in three-dimensional surface-related multiple prediction 有权用于三维表面相关多重预测中的数据重建的基于Dip的校正公开(公告)号：US08478531B2
公开(公告)日：2013-07-02
申请号：US12798594
申请日：2010-04-07
CPC分类号： G01V1/364 , G01V2210/56
摘要： A best fitting trace in seismic data is determined for a desired trace to be reconstructed. A dip-based correction is calculated per trace and per sample for differences in azimuth, common midpoint coordinates, and offset between the best fitting trace and the desired trace. The dip-based correction is applied to the best fitting trace to reconstruct the desired trace for 3D surface-related multiple prediction.
摘要翻译： 确定要重建的所需轨迹的地震数据中最佳拟合曲线。 对于方位角，共同中点坐标以及最佳拟合曲线与所需曲线之间的偏移量，每个曲线和每个样本计算基于dip的校正。 基于dip的校正被应用于最佳拟合轨迹，以重建用于3D表面相关多重预测的期望轨迹。
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5.发明授权Method for dynamic aperture determination for three-dimensional surface-related multiple elimination 有权用于三维表面相关多重消除的动态孔径测定方法公开(公告)号：US08300498B2
公开(公告)日：2012-10-30
申请号：US12459329
申请日：2009-06-30
IPC分类号： G01V1/00
CPC分类号： G01V1/364 , G01V2210/56
摘要： Dips are calculated for a series of sets of adjacent multiple contribution traces, from seismic data representative of subsurface formations, in the vicinity of a boundary of an aperture of a multiple contribution gather, the seismic data acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy. The boundary of the aperture of the multiple contribution gather is recursively extended, based on the calculated dips. Multiple contribution traces in the multiple contribution gather with the extended aperture boundary are stacked to generate predicted multiple traces. The predicted multiple traces are subtracted from the seismic data to generate surface-related multiple attenuated data useful for imaging the subsurface formations.
摘要翻译： 对于一系列相邻的多重贡献迹线，从代表地下地层的地震数据，在多重贡献收集的孔径的边界附近计算出一系列相对于多个贡献轨迹的地震数据， 要评估的地球表面的地面，地震传感器响应于地震能产生电信号和光信号中的至少一个。 基于计算出的下降，多重贡献集合的孔径的边界被递归地扩展。 叠加具有扩展孔径边界的多重贡献中的多个贡献迹线被堆叠以产生预测的多个迹线。 从地震数据中减去预测的多条迹线，以产生对地下地层成像有用的表面相关多重衰减数据。
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6.发明授权Azimuth correction for data reconstruction in three-dimensional surface-related multiple prediction 有权三维表面相关多重预测中数据重建的方位角校正公开(公告)号：US08126652B2
公开(公告)日：2012-02-28
申请号：US12657412
申请日：2010-01-20
CPC分类号： G01V1/36 , G01V2210/56
摘要： A best fitting trace in seismic data is determined for a desired trace to be reconstructed. An azimuth correction is calculated for the azimuth difference between the best fitting trace and the desired trace. The azimuth correction is applied to the best fitting trace to reconstruct the desired trace for 3D surface-related multiple prediction.
摘要翻译： 确定要重建的所需轨迹的地震数据中最佳拟合曲线。 计算最佳拟合曲线与所需曲线之间的方位差的方位角校正。 将方位角校正应用于最佳拟合轨迹，以重建3D表面相关多重预测的期望轨迹。
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7.发明授权Method for deghosting marine seismic streamer data with irregular receiver positions 有权用不规则的接收器位置对海洋地震拖缆数据进行去晕影的方法公开(公告)号：US07986586B2
公开(公告)日：2011-07-26
申请号：US12082006
申请日：2008-04-08
IPC分类号： G01V1/00
CPC分类号： G01V1/36 , G01V1/20 , G01V2210/56
摘要： Seismic data are obtained for each seismic source activation in a marine streamer and for each frequency, after being transformed to a spectral domain. An iterative conjugate gradient scheme, using a physically-based preconditioner, is applied to the transformed seismic data, to provide a least squares solution to a normal set of equations for a deghosting system of equations. The solution is inverse-transformed back to a space-time domain to provide deghosted seismic data.
摘要翻译： 在海洋拖缆和每个频率的每个地震源激活之后，在被转换成频谱域之后获得地震数据。 使用基于物理的预处理器的迭代共轭梯度方案被应用于变换的地震数据，以提供用于反虚反射方程组的正常方程组的最小二乘解。 该解被逆向变换回到时空域，以提供消隐主体的地震数据。
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8.发明授权公开(公告)号：US09025413B2
公开(公告)日：2015-05-05
申请号：US12653099
申请日：2009-12-07
申请人： Roald G. van Borselen , Christina D. Riyanti , Christopher P. Page , Jacob T. Fokkema , Peter M. van den Berg
发明人： Roald G. van Borselen , Christina D. Riyanti , Christopher P. Page , Jacob T. Fokkema , Peter M. van den Berg
CPC分类号： G01V1/364 , G01V1/3808 , G01V2210/56
摘要： Seismic data recorded in a marine streamer are obtained, sorted as a common receiver gather. A complex Laplace frequency parameter is used to transform the seismic data from a space-time domain to a spectral domain. An iterative conjugate gradient scheme, using a physically-based preconditioner, is applied to the transformed seismic data, to provide a least squares solution to a normal set of equations for a source deghosting system of equations. The solution is inverse-transformed back to a space-time domain to provide source deghosted seismic data, which is useful for imaging the earth's subsurface.
摘要翻译： 获得记录在船用拖缆中的地震数据，按普通接收机收集。 复数拉普拉斯频率参数用于将地震数据从时空域变换为频域。 使用基于物理的预处理器的迭代共轭梯度方案被应用于变换的地震数据，以提供用于源虚反主体方程组的正常方程组的最小二乘解。 解决方案被逆变换回到时空域，以提供源虚幻的地震数据，这对于地球的地下成像是有用的。
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公开(公告)号：US20140022860A1
公开(公告)日：2014-01-23
申请号：US13552611
申请日：2012-07-18
IPC分类号： G01V1/38
CPC分类号： G01V1/364 , G01V2210/1293 , G01V2210/1423 , G01V2210/56 , G01V2210/57
摘要： Methods, devices, and computer-readable media are provided for accessing seismic data that describes seismic energy that propagated through media, including water and optionally surface or subsurface layers, to measurement locations in the water. The seismic data includes pressure data that describes time-variant pressures at measurement locations in the water. The seismic data may also include velocity data that describes time-variant velocities of particles at measurement locations in the water. The seismic data is processed using wavefield decomposition to reduce an effect of a portion of the seismic energy that reflects off of the surface of the water. The processing is performed in a discrete domain that includes or is the measurement locations. The discrete domain may exclude certain locations or ranges of locations. The processed seismic data may be used to generate a map of any surfaces of the media through which the seismic energy propagated.
摘要翻译： 提供了方法，设备和计算机可读介质，用于访问地震数据，该地震数据描述通过介质（包括水和任选的表面或地下层）传播的地震能量到水中的测量位置。 地震数据包括描述水中测量位置的时变压力的压力数据。 地震数据还可以包括描述水中测量位置处的颗粒的时变速度的速度数据。 使用波场分解处理地震数据，以减少一部分从水面反射的地震能量的影响。 该处理在包括或者是测量位置的离散域中执行。 离散域可以排除某些位置或位置范围。 经处理的地震数据可用于产生传播地震能量的介质的任何表面的地图。
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公开(公告)号：US08339896B2
公开(公告)日：2012-12-25
申请号：US12806544
申请日：2010-08-16
IPC分类号： G01V1/38
CPC分类号： G01V1/364 , G01V1/362 , G01V2210/32 , G01V2210/40
摘要： An operator is applied in a frequency domain to multiple source seismic data acquired in a marine survey, with multiple sources substantially horizontally collocated and at different depths, to generate an estimate of a primary source wavefield, the operator constructed to compensate for time delays between and for different depths of the primary and secondary sources. The primary source wavefield estimate is adaptively subtracted from the multiple source seismic data to generate secondary source wavefield estimates. Another operator is applied in the frequency domain to the secondary source wavefield estimates to generate another primary source wavefield estimate, the operator constructed to compensate for time delays between and for different depths of the primary and secondary sources. The primary and secondary source estimates are used, after further iterative refinements to remove noise, to generate upgoing and downgoing wavefield components of the multiple source seismic data.
摘要翻译： 在频域中将操作者应用于在海洋测量中获取的多个源地震数据，其中多个源基本上水平并置并且在不同的深度处，以产生主源波场的估计，所述算子被构造为补偿在 适用于主要和次要来源的不同深度。 从多源地震数据自适应地减去主源波场估计，以产生次源波场估计。 在频域中应用另一个运算符到二次源波场估计以产生另一个主要源波场估计，运算符被构造为补偿主要和次要源的不同深度之间的时间延迟。 在进一步迭代细化以消除噪声之后，使用主要和次要源估计来产生多源地震数据的上行和下行波场分量。
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