Radon depth migration
- Dartmouth, Houston, TX (United States)
- B.P. Exploration, Houston, TX (United States)
A depth migration method is presented that used Radon-transformed common-source seismograms as input. It is shown that the Radon depth migration method can be extended to spatially varying velocity depth models by using asymptotic ray theory (ART) to construct wavefield continuation operators. These operators downward continue an incident receiver-array plane wave and an assumed point-source wavefield into the subsurface. The migration velocity model is constrain to have longer characteristic wavelengths than the dominant source wavelength such that the ART approximations for the continuation operators are valid. This method is used successfully to migrate two synthetic data examples: (1) a point diffractor, and (2) a dipping layer and syncline interface model. It is shown that the Radon migration method has a computational advantage over the standard Kirchhoff migration method in that fewer rays are computed in a main memory implementation.
- OSTI ID:
- 6336366
- Journal Information:
- Geophysical Prospecting; (United States), Journal Name: Geophysical Prospecting; (United States) Vol. 41:2; ISSN GPPRAR; ISSN 0016-8025
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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03 NATURAL GAS
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54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ASYMPTOTIC SOLUTIONS
BOUNDARY CONDITIONS
ELEMENTS
ENVIRONMENTAL TRANSPORT
EXPLORATION
FLOW MODELS
FLUIDS
GASES
GEOCHEMICAL SURVEYS
GEOLOGIC DEPOSITS
MASS TRANSFER
MATHEMATICAL MODELS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NONMETALS
PETROLEUM DEPOSITS
RADON
RARE GASES
RESERVOIR ROCK
RESOURCES
SURVEYS