Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent
1981-07-20
1984-12-04
Wilbur, Maynard R.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
181107, 181110, 181111, G01V 138
Patent
active
044868642
ABSTRACT:
A method for marine seismic exploration, comprising the steps of first discharging simultaneously a set number of seismic sources having a known volume V.sub.1, resulting in several seismic waves with substantially identical form which after reflection by a same series of reflection points are detected by hydrophones as a sum signal of the individual emitted source waves having a frequency range f.sub.1. The sum signal is subsequently filtered by means of a suitable filter operation having a frequency range f.sub.1, resulting in a sum signal having substantially equal phase of the individual components in the frequency range f.sub.1, next discharging simultaneously a set number of seismic sources having a known volume V.sub.2, different from volume V.sub.1, resulting in several seismic waves with substantially identical form which after reflection are detected by hydrophones as a sum signal of the individual emitted source waves having a frequency range f.sub.2. The sum signal is filtered by means of a suitable filter operation having a frequency range f.sub.2, to obtain substantially equal phase of the individual components in the frequency range f.sub.2, then repeating the abovementioned procedure of discharging simultaneously seismic sources having a known volume, detecting the several seismic waves after reflection and filtering the sum signals in a suitable way with seismic sources having mutually different volumes V.sub.3, V.sub.4 -V.sub.n respectively. Finally, "stacking" the obtained signals, which results in a final "stacked" sum signal having a frequency range f.sub.1 -f.sub.n.
REFERENCES:
patent: 3284763 (1966-11-01), Burg et al.
patent: 3351899 (1967-11-01), Luehrmann et al.
patent: 3413596 (1968-11-01), Backus et al.
patent: 3437170 (1969-04-01), Brock et al.
patent: 3602878 (1971-08-01), Sullivan
patent: 4004267 (1977-01-01), Mayne
patent: 4146870 (1977-05-01), Ruehle
patent: 4208732 (1976-02-01), Ruehle
Huizer Willem
Ongkiehong Leo
Kaiser K. R.
Shell Oil Company
Wilbur Maynard R.
LandOfFree
Method for marine seismic exploration does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for marine seismic exploration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for marine seismic exploration will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1586271