Invention Grant
- Patent Title: Seismic exploration using image-based reflection full waveform inversion to update low wavenumber velocity model
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Application No.: US16191539Application Date: 2018-11-15
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Publication No.: US11353613B2Publication Date: 2022-06-07
- Inventor: Min Wang , Yi Xie , Xiaodong Wu , Dechun Lin
- Applicant: CGG SERVICES SAS
- Applicant Address: FR Massy
- Assignee: CGG SERVICES SAS
- Current Assignee: CGG SERVICES SAS
- Current Assignee Address: FR Massy
- Agency: Patent Portfolio Builders PLLC
- Main IPC: G01V1/38
- IPC: G01V1/38 ; G01V1/28 ; G01V1/30

Abstract:
A seismic exploration method includes performing a true amplitude PSDM based on an initial velocity model of a subsurface formation to obtain a reflectivity model, and then a Born modeling using the reflectivity model to generate synthetic data. An image-based reflection full waveform inversion is applied to a cost function of differences between seismic data acquired over the subsurface formation and the synthetic data to update the initial velocity model. The updated velocity model enables exploring the presence of and/or assisting in the extraction of natural resources from the subsurface formation.
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