Method for determining the far-field signature of a plurality of

Details Method for determining the far-field signature of a plurality of Method for determining the far-field signature of a plurality of

1993-02-04

1993-09-21

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

181118, G01V 138

Patent

active

052474860

ABSTRACT:
A method for determining a far-field signature FF(t) of a plurality of N seismic sources Si (i=1, . . . , N) comprises a stage of measuring a near-field signature NFi(t) of each seismic source Si. In a preliminary stage an initial near-field signature NFio(t) of each seismic source Si and an initial far-field signature FFo(t) of the plurality of N seismic sources are measured simultaneously. An operator G is determined, defined by the convolution integral ##EQU1## The near-field signature NFi(t) measuring stage is carried out on each firing of the N seismic sources Si. The far-field signature FF(t) is determined from the equation ##EQU2##

REFERENCES:
patent: 4648080 (1987-03-01), Hargreaves
patent: 4658384 (1987-04-01), Dragoset, Jr. et al.
patent: 4827456 (1989-05-01), Brac
patent: 4868794 (1989-09-01), Zilkowski et al.
patent: 4908801 (1990-03-01), Bell et al.

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