Traveltime curves for reflections in dipping layers
The traveltimes for reflected waves from plane, dipping layer interfaces for split-spread arrays and CGP gathers are determined by a computationally efficient method. The computational efficiency is obtained by (1) interpolating the traveltimes for particular source-receiver distances from least-squares curves fitted to traveltime data rather than by using iterative ray-tracing techniques, and (2) using the traveltime curves for a fixed source to determine those for other source locations and for CGP gathers over the same dipping layer interfaces. The additional computations necessary in this latter case are minimal when this approach is used. The traveltime curves for other source locations and CGP gathers are obtained by taking advantage of the fact that the traveltimes and travel distances for parallel rays are simply related for plane, dipping layer interfaces.
- Research Organization:
- Texas A and M Univ., College Station
- OSTI ID:
- 7356474
- Journal Information:
- Geophysics; (United States), Journal Name: Geophysics; (United States) Vol. 41:3; ISSN GPYSA
- Country of Publication:
- United States
- Language:
- English
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