Common-offset ray tracing
Conference
·
OSTI ID:93096
- Institut Francais du Petrole, Pau (France)
In the SMART method, exact traveltimes, used as input of reflection tomography, are computed by tracing rays that are reflected on interpreted migrated events. Since picking migrated events is easier in common offset migrated images than in common shot migrated images, a common offset raytracing has been developed. It is based on a continuation method in the source position-shooting angle domain. It consists in following in this domain iso-offset lines and determining the points of these lines corresponding to the actual sources. It allows the user to compute all the arrivals even for complex media at a low computational cost.
- OSTI ID:
- 93096
- Report Number(s):
- CONF-941015--
- Country of Publication:
- United States
- Language:
- English
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