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公开(公告)号：US20210255346A1
公开(公告)日：2021-08-19
申请号：US16795374
申请日：2020-02-19
Applicant: Chevron U.S.A. Inc.
Inventor： Yonghe Sun , Jeffrey William Nealon , James Michael Davenport , Zhemin Tan , Brian J. Church
Abstract: A method is described for seismic imaging that receives a field seismic dataset and a synthetic seismic dataset wherein the synthetic seismic dataset is generated with no or known attribute variation with angle or other spatial coordinates; applies seismic processing to the field seismic dataset and the synthetic seismic dataset to generate a processed field seismic dataset and a processed synthetic seismic dataset wherein the processed field seismic dataset and the processed synthetic seismic dataset each contain attribute distortion due to the seismic processing; and corrects the attribute distortion in the field seismic dataset based on the distortion assessed from the processed synthetic seismic dataset to generate a corrected processed field dataset. The method may be executed by a computer system.
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公开(公告)号：US20170176616A1
公开(公告)日：2017-06-22
申请号：US14975997
申请日：2015-12-21
Applicant: CHEVRON U.S.A. INC.
Inventor： Yonghe Sun , Guojian Shan , Yue Wang , Craig Alan Barker
CPC classification number: G01V1/306 , G01V1/362 , G01V2210/51 , G01V2210/514
Abstract: A method is described for seismic imaging of the subsurface using dip-guided optimized stacking. The method computes weighting functions for a plurality of single-shot migrated images, unstacked seismic images, or partially stacked seismic images based on a slant stack performed using an input dip dataset; applying the plurality of weighting functions to the plurality of single-shot migrated images, unstacked seismic images, or partially stacked seismic images, or a plurality of dip-filtered images to create a plurality of weighted images; and summing the plurality of weighted images into a stacked seismic image. The method may be executed by a computer system.
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