Resonant energy analysis method and apparatus for seismic data

Details Resonant energy analysis method and apparatus for seismic data Resonant energy analysis method and apparatus for seismic data

1993-11-12

1995-05-09

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 21, 364421, G01V 130

Patent

active

054146747

ABSTRACT:
The invention is a method and apparatus for conducting seismic analysis of underground formations that offers improved accuracy in locating strata that contain natural gas in paying quantities. The method analyzes the resonant response generated when a seismic wave passes through a given stratum. Seismic data are collected using conventional field acquisition methods. Following conventional preprocessing, the seismic response data are mapped onto the quefrency domain in order to separate the resonant and non-resonant components of the reflected energy. Strata that consist of predominantly elastic materials (solids and liquids) resonate in discrete frequency bands, which are represented by a quefrency spectrum with a large amplitude at high-quefrency values. Gas-bearing strata have more plastic properties, and emit a more uniform response that lacks distinct resonant peaks. The quefrency spectrum of gas-bearing strata contains a relatively higher amplitude at low-quefrency values. Therefore, strata having high concentration of natural gas hydrocarbons are located by detecting seismic data having quefrency distributions weighted toward the lower quefrencies.

REFERENCES:
patent: 4316267 (1982-02-01), Ostrander
patent: 4316268 (1982-02-01), Ostrander
patent: 4380929 (1983-04-01), Taszorch et al.
patent: 4694438 (1987-09-01), Sengupta
patent: 4713616 (1987-12-01), Shinazahi et al.
patent: 4884247 (1989-11-01), Hadidi et al.
patent: 4984567 (1991-01-01), Kogeyama et al.
patent: 5077697 (1991-12-01), Chang
patent: 5081612 (1992-01-01), Scott et al.
patent: 5195138 (1993-03-01), Kane et al.
patent: 5351544 (1994-10-01), Endo et al.

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