公开(公告)号：US20170363759A1

公开(公告)日：2017-12-21

申请号：US15266216

申请日：2016-09-15

Applicant: CGG SERVICES SA

Inventor： Benoit DE CACQUERAY ,  Jean-Charles FERRAN

IPC: G01V1/36 ,  G01V1/02 ,  G01V1/24

CPC classification number: G01V1/36 ,  G01V1/003 ,  G01V1/02 ,  G01V1/247 ,  G01V1/3808 ,  G01V2210/121 ,  G01V2210/675 ,  G01V2210/72 ,  G01V2210/74

Abstract: Systems and methods for improving or generating an image of a surveyed subsurface based on seismic interferometry. A method includes actuating interferometry-based sources over an area to be surveyed to generate seismic waves; recording seismic signals due to the interferometry-based sources, with seismic receivers; selecting traces corresponding to a pair of seismic receivers and an interferometry-based source such that ray paths between the interferometry-based source and the pair of seismic receivers contribute to a Green's function between the two receivers of the pair; cross-correlating the traces for calculating an earth's response associated with a ray propagating from a first seismic receiver of the pair to a second receiver of the pair; and generating an image based on the calculated earth's response.

公开(公告)号：US20160091624A1

公开(公告)日：2016-03-31

申请号：US14957949

申请日：2015-12-03

Applicant: CGG SERVICES SA

Inventor： Ross HAACKE ,  Lorenzo CASASANTA ,  Benoit DE CACQUERAY

IPC: G01V1/36 ,  G01V1/32

CPC classification number: G01V1/366 ,  G01V1/308 ,  G01V2210/51 ,  G01V2210/612

Abstract: A method for increasing similarity between a first seismic dataset and a second seismic dataset from at least one seismic survey of a subsurface. The first and second seismic datasets are migrated to a dip angle image domain. The migrated first and second seismic datasets are used in the dip angle image domain to calculate a set of decimating weights to be applied to the first seismic dataset and the second seismic dataset to maximize a similarity between the first seismic dataset and the second seismic dataset. The decimated weights are applied to the first and second seismic datasets, and an image of the subsurface is generated using the first seismic dataset and the second seismic dataset following application of the decimated weights.

Abstract translation: 一种用于从地下至少一个地震勘测增加第一地震数据集和第二地震数据集之间的相似度的方法。 第一和第二地震数据集迁移到倾角图像域。 迁移的第一和第二地震数据集用于倾角图像域，以计算要应用于第一地震数据集和第二地震数据集的抽取权重集合，以最大化第一地震数据集和第二地震数据集之间的相似度。 抽取的权重被应用于第一和第二地震数据集，并且在应用抽取的权重之后，使用第一地震数据集和第二地震数据集生成地下图像。

公开(公告)号：US20140095079A1

公开(公告)日：2014-04-03

申请号：US14040868

申请日：2013-09-30

Applicant: CGG SERVICES SA

Inventor： Benoit DE CACQUERAY ,  Philippe ROUX

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V2210/1425 ,  G01V2210/242

Abstract: A system and method are provided for filtering scatterer noise energy from land seismic waves using three dimensional (3D) iterative filtering in a cross-spread source-receiver pattern. The system and method isolate scatterer noise energy associated with a scatterer based on a filtering process performed using a scatterer referential time delay. Then, the isolated scatterer noise energy can be subtracted from the surface wave data. This process can be repeated for each scatterer in the covered area to remove each of their contributions, and can be performed, for example, after a preliminary filtering of the surface wave data using 3D fk filtering or the like.

Abstract translation: 提供一种系统和方法，用于在交叉扩展的源 - 接收器模式中使用三维（3D）迭代滤波来从陆地地震波滤波散射体噪声能量。 该系统和方法基于使用散射体参考时间延迟执行的滤波处理来隔离与散射体相关联的散射体噪声能量。 然后，可以从表面波数据中减去孤立的散射体噪声能量。 对于覆盖区域中的每个散射体可以重复该过程以去除它们的贡献，并且可以例如在使用3D fk滤波等对表面波数据进行初步滤波之后进行。

公开(公告)号：US20160131782A1

公开(公告)日：2016-05-12

申请号：US14898032

申请日：2014-06-25

Applicant: CGG SERVICES SA

Inventor： Benoit DE CACQUERAY

IPC: G01V1/30 ,  G01V1/36

CPC classification number: G01V1/305 ,  G01V1/303 ,  G01V1/368 ,  G01V2210/6222 ,  G01V2210/63

Abstract: Methods and systems for optimizing the quantity and precision of processed seismic data based on reducing destructive interference of the seismic data. Sensitivity kernels are computed based on the medium of interest, e.g., source-receiver pairs, CDP collections and migrated collections, for a preselected wavefield parameter, e.g., travel-time, amplitude, slowness, etc., using a velocity model. Next, wavefield parameters are computed for a selected subset of the medium and are inverted or deconvolved with the sensitivity kernels to generate subsurface parameter variations.

Abstract translation: 基于减少地震数据的破坏性干扰，优化加工地震数据的数量和精度的方法和系统。 使用速度模型，基于感兴趣的介质，例如源 - 接收器对，CDP集合和迁移的集合，针对预选波场参数（例如行进时间，幅度，慢度等）来计算灵敏度内核。 接下来，针对介质的选定子集计算波场参数，并用灵敏度内核进行反相或去卷积以产生地下参数变化。