Trace interpolation by slant-stack migration

Journal Article · Wed Oct 31 23:00:00 EST 1990 · Geophysical Prospecting; (USA)

DOI:https://doi.org/10.1111/j.1365-2478.1990.tb01877.x· OSTI ID:5897207

Novotny, M ^[1]

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1. Geofyzika, n.p., Brno (Czechoslovakia)

The slant-stack migration formula based on the radon transform is studied with respect to the depth steep {Delta}z of wavefield extrapolation. It can be viewed as a generalized trace-interpolation procedure including wave extrapolation with an arbitrary step {Delta}z. For {Delta}z {gt} 0 the formula yields the familiar plane-wave decomposition, while for {Delta}z {gt} 0 it provides a robust tool for migration transformation of spatially under sampled wavefields. Using the stationary phase method, it is shown that the slant-stack migration formula degenerates into the Rayleigh-Sommerfeld integral in the far-field approximation. Consequently, even a narrow slant-stack gather applied before the diffraction stack can significantly improve the representation of noisy data in the wavefield extrapolation process. The theory is applied to synthetic and field data to perform trace interpolation and dip reject filtration. The data examples presented prove that the radon interpolator works well in the dip range, including waves with mutual stepouts smaller than half the dominant period.

• OSTI ID: 5897207
• Journal Information: Geophysical Prospecting; (USA), Journal Name: Geophysical Prospecting; (USA) Vol. 38:8; ISSN 0016-8025; ISSN GPPRA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540130* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
540230 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
CALCULATION METHODS
DATA ANALYSIS
ELEMENTS
ENVIRONMENTAL TRANSPORT
FIELD TESTS
FLUIDS
GASES
MASS TRANSFER
MATERIALS
NONMETALS
RADIONUCLIDE MIGRATION
RADON
RARE GASES
ROCKS
SYNTHETIC MATERIALS
SYNTHETIC ROCKS
TESTING