Invention Grant
- Patent Title: Accurate velocity model estimation and imaging in the presence of localized attenuation (Q) anomalies
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Application No.: US16571950Application Date: 2019-09-16
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Publication No.: US11340366B2Publication Date: 2022-05-24
- Inventor: Anatoly I. Baumstein , Gboyega Ayeni , Carey M. Marcinkovich , Jaewoo Park , Sirui Tan , Peter Traynin
- Applicant: Anatoly I. Baumstein , Gboyega Ayeni , Carey M. Marcinkovich , Jaewoo Park , Sirui Tan , Peter Traynin
- Applicant Address: US TX Houston; US TX Humble; US TX The Woodlands; US TX The Woodlands; US TX Spring; US TX Houston
- Assignee: Anatoly I. Baumstein,Gboyega Ayeni,Carey M. Marcinkovich,Jaewoo Park,Sirui Tan,Peter Traynin
- Current Assignee: Anatoly I. Baumstein,Gboyega Ayeni,Carey M. Marcinkovich,Jaewoo Park,Sirui Tan,Peter Traynin
- Current Assignee Address: US TX Houston; US TX Humble; US TX The Woodlands; US TX The Woodlands; US TX Spring; US TX Houston
- Agency: ExxonMobil Upstream Research Company—Law Department
- Main IPC: G01V1/28
- IPC: G01V1/28 ; G01V1/30

Abstract:
Iterative methods for inversion of seismic data to update a physical property model are disclosed. Such methods may comprise iteratively updating the model until a first predetermined resolution is achieved, using full wavefield inversion of the seismic data up to a first frequency threshold and assuming the seismic data is free of attenuation effects; extracting geobodies from the updated model; obtaining a Q model using the geobodies; and updating the physical property model using an inversion process, wherein the Q model is incorporated into the inversion process. These steps may be repeated until a second predetermined resolution of the physical property model is achieved, wherein the first frequency threshold is progressively increased in each repetition. The Q model may be updated with seismic data at all available frequencies to obtain a full-band Q model; and the physical property model may be updated using full-band migration and the full-band Q model.
Public/Granted literature
- US2593821A Mouthpiece Public/Granted day:1952-04-22
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