Method for removing noise due to near surface scatterers

Details Method for removing noise due to near surface scatterers Method for removing noise due to near surface scatterers

1993-01-07

1994-03-08

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 50, 367 21, G01V 136

Patent

active

052933520

ABSTRACT:
A set of raw common shot gathers are resorted as common receiver gathers. The wavefield envelopes from the common receiver gathers are migrated using one half the near-surface velocity to provide migrated data sets. The migrated data sets are resorted back into common shot gathers and subtracted from the original raw common shot gathers to provide coherent-noise-reduced data sets.

REFERENCES:
patent: 4866679 (1989-09-01), Chambers
patent: 4907205 (1990-03-01), Yanchak
patent: 4910716 (1990-03-01), Kirlin et al.
patent: 4935904 (1990-06-01), Chambers
patent: 4937794 (1990-06-01), Marschall et al.
patent: 4992995 (1991-02-01), Favret
Larner, Ken; Chambers, Ron; Yang, Mai; Lynn, Walt; Wai, Lillon "Coherent Noise in Marine Seismic Data", 51st Annual Int.'1 SEGMeeting, Nov. 14, 1981, Los Angeles, Calif.
Encyclopedic Dictionary of Exploration Geophysics (Robert E. Sheriff, erd ed.), Definition of Exploding Reflector, p. 109.

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