Invention Grant
- Patent Title: Passive seismic imaging
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Application No.: US16671300Application Date: 2019-11-01
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Publication No.: US11079507B2Publication Date: 2021-08-03
- Inventor: Zhongmin Song , York Zheng
- Applicant: BP Exploration Operating Company Limited
- Applicant Address: GB Middlesex
- Assignee: BP Exploration Operating Company Limited
- Current Assignee: BP Exploration Operating Company Limited
- Current Assignee Address: GB Middlesex
- Agency: Conley Rose, P.C.
- Main IPC: G01V1/30
- IPC: G01V1/30 ; G01V1/32 ; G01V1/34

Abstract:
A virtual seismic shot record is generated based at least in part on seismic interferometry of the passive seismic data. Then, a frequency bandwidth of the virtual seismic shot record is determined, wherein the frequency bandwidth comprises a plurality of frequencies. The virtual seismic shot record is transformed into a frequency-dependent seismic shot record based on a first frequency of the plurality of frequencies. Further, a phase shift is applied to the frequency-dependent seismic shot record. A first velocity model is generated from the phase shifted frequency-dependent seismic shot record. A second velocity model may be generated using full-waveform inversion (FWI). One or more depth slices are identified from the second velocity model. A seismic image is generated based on the one or more depth slices for use with seismic exploration above a region of subsurface including a hydrocarbon reservoir and containing structural features conducive to a presence, migration, or accumulation of hydrocarbons.
Public/Granted literature
- US20200150302A1 Passive Seismic Imaging Public/Granted day:2020-05-14
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