Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1983-04-20
1986-06-17
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
364421, 367 74, G01V 136
Patent
active
045960054
ABSTRACT:
This invention relates to a method of increasing resolution of high-intensity amplitude events in seismic records provided by common midpoint collection methods (CMP) wherein nonsymmetrical travel paths of incident and reflected rays of the generated conventional waves (due to dip and depth) are taken into account prior to trace stacking. Then, in accordance with the invention, the converted phases of the conventional seismic wave, are processed as to define a series of common reflection point (CRP) coordinates each associated with a gather of converted traces as if a source associated with a given corrected trace was placed at each CRP and activated followed immediately by the relocation of a detector at the CRP and the reception of converted phases of the generated wave comprising the trace wherein the equation of coordinate transformation is selected from the group comprising:
REFERENCES:
patent: 4373197 (1983-02-01), Gassaway et al.
"Velocity Spectra-Digital Computer Derivation . . . ," Taner et al., Geophysics, vol. 34, #6, Dec. 1969, pp. 859-881.
Chevron Research Company
Keeling Edward J.
Lobo Ian J.
Messner H. D.
Moskowitz Nelson
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