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公开(公告)号：US20200333490A1
公开(公告)日：2020-10-22
申请号：US16835015
申请日：2020-03-30
申请人： PGS Geophyscial AS
发明人： Stian Hegna , Tilman Kluver
摘要： Processes and systems for imaging a subterranean formation using continuously recorded seismic data obtained during a marine seismic geophysical survey of the subterranean formation are described herein. The processes and systems compute upgoing pressure data at stationary-receiver locations. and low-frequency noise attenuation processes and systems are applied to the upgoing pressure wavefield data to obtain low-frequency noise attenuated upgoing pressure wavefield data. An image of the subterranean formation, or data indicative thereof, may be generated using the low-frequency noise attenuated upgoing pressure wavefield data at stationary-receiver locations.
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2.发明授权公开(公告)号：US09453930B2
公开(公告)日：2016-09-27
申请号：US14044203
申请日：2013-10-02
申请人： PGS Geophyscial AS
摘要： This disclosure presents computational systems and methods for obtaining high-resolution, three-dimensional seismic images of a region of a subterranean formation using separated up-going and down-going wavefields that include primary and multiple reflections obtained by processing dual-sensor towed streamer seismic data. The inclusion of multiple reflections reduces acquisition footprints in migration of the seismic data. The computational systems and methods produce high-resolution images in a region of a subterranean formation that lies below a body of water. The methods and systems employ a digitally encoded wavefields constructed from a discrete sampling of a two-dimensional slice of a three-dimensional wavefield and stored in one or more tangible, physical data-storage devices.
摘要翻译： 本公开提供了用于使用分离的上行和下行波场获得地下地层的高分辨率三维地震图像的计算系统和方法，所述波场包括通过处理双传感器拖缆拖缆地震获得的主反射和多反射 数据。 包含多次反射减少了地震数据迁移中的采集足迹。 计算系统和方法在位于水体下面的地层的区域中产生高分辨率图像。 所述方法和系统采用由三维波场的二维切片的离散采样构成的数字编码波场并存储在一个或多个有形物理数据存储装置中。
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公开(公告)号：US11994640B2
公开(公告)日：2024-05-28
申请号：US16835015
申请日：2020-03-30
申请人： PGS Geophyscial AS
发明人： Stian Hegna , Tilman Klüver
CPC分类号： G01V1/345 , G01V1/364 , G01V2210/56
摘要： Processes and systems for imaging a subterranean formation using continuously recorded seismic data obtained during a marine seismic geophysical survey of the subterranean formation are described herein. The processes and systems compute upgoing pressure data at stationary-receiver locations, and low-frequency noise attenuation processes and systems are applied to the upgoing pressure wavefield data to obtain low-frequency noise attenuated upgoing pressure wavefield data. An image of the subterranean formation, or data indicative thereof, may be generated using the low-frequency noise attenuated upgoing pressure wavefield data at stationary-receiver locations.
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4.发明申请公开(公告)号：US20140119157A1
公开(公告)日：2014-05-01
申请号：US14044203
申请日：2013-10-02
申请人： PGS Geophyscial AS
IPC分类号： G01V1/30
摘要： This disclosure presents computational systems and methods for obtaining high-resolution, three-dimensional seismic images of a region of a subterranean formation using separated up-going and down-going wavefields that include primary and multiple reflections obtained by processing dual-sensor towed streamer seismic data. The inclusion of multiple reflections reduces acquisition footprints in migration of the seismic data. The computational systems and methods produce high-resolution images in a region of a subterranean formation that lies below a body of water. The methods and systems employ a digitally encoded wavefields constructed from a discrete sampling of a two-dimensional slice of a three-dimensional wavefield and stored in one or more tangible, physical data-storage devices.
摘要翻译： 本公开提供了用于使用分离的上行和下行波场获得地下地层的高分辨率三维地震图像的计算系统和方法，所述波场包括通过处理双传感器拖缆拖缆地震获得的主反射和多反射 数据。 包含多次反射减少了地震数据迁移中的采集足迹。 计算系统和方法在位于水体下面的地层的区域中产生高分辨率图像。 所述方法和系统采用由三维波场的二维切片的离散采样构成的数字编码波场并存储在一个或多个有形物理数据存储装置中。
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