Method of analyzing the structure of a medium, particularly usef

Details Method of analyzing the structure of a medium, particularly usef Method of analyzing the structure of a medium, particularly usef

1988-07-11

1989-10-31

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 53, 367 51, G01V 136

Patent

active

048782050

ABSTRACT:
Method of analyzing the structure of a medium by means of waves reflected by inner interfaces, comprises: (a) generating multiple coverage data represented by traces corresponding to a plurality of source-receiver pairs distributed according to an asymetric polynomial distribution with respect to a predetermined central point with optimal parameters which provide that all reflected events of such traces correspond to the same common reflecting point on a reflecting interface; (b) correcting the recorded traces according to an optimal time delay correction which converts all reflected events to the same phase and which depends on the local parameters of wave propagation velocity Vo at the reference level, and of radius of curvature r.sub.o of the wavefront emitted by a fictitious source located at the common reflecting point and coming to the central point at an angle of entry .beta.o; (c) stacking the corrected recorded traces; (d) repeating (a), (b) and (c) for a plurality of predetermined common reflecting points to produce a plurality of the stacked traces; and (e) utilizing the stacked traces and parameters ro and .beta.o as a function of the predetermined central point and the time t.sub.o of registation of the data at this point for determining the structure of the medium.

REFERENCES:
patent: 4363113 (1982-12-01), Taner et al.
patent: 4503527 (1985-03-01), Pann
patent: 4742497 (1988-03-01), Beasley et al.
Exploration Geophysics, The Bulletin of the Australian Society of Exploration Geophysics, Conference, Adelaide, Australia, 2/14/88, ISSN 0812-5985.

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