Invention Grant
- Patent Title: Identifying geologic features in a subterranean formation using a post-stack seismic diffraction imaging condition
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Application No.: US16813231Application Date: 2020-03-09
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Publication No.: US11467303B2Publication Date: 2022-10-11
- Inventor: Dongliang Zhang , Constantinos Tsingas
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: Saudi Arabian Oil Company
- Current Assignee: Saudi Arabian Oil Company
- Current Assignee Address: SA Dhahran
- Agency: Fish & Richardson P.C.
- Main IPC: G01V1/28
- IPC: G01V1/28 ; G01V1/34 ; G01V1/36

Abstract:
A system for seismic imaging of a subterranean geological formation, the system includes a receiver configured to obtain seismic data comprising a data volume representing a post-stacked image. The system includes a filtering module configured to: apply frequency-wavenumber (F-K) filter to the data volume extract a negative-dip structure image and apply the frequency-wavenumber (F-K) filter to the data volume extract a positive-dip structure image. The system includes a diffraction rendering module configured to: multiply the positive-dip structure image with the negative-dip structure image and generate a diffraction-enhanced seismic image representing a geological formation of the data volume.
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