Source waveforms for electroseismic exploration

Details Source waveforms for electroseismic exploration Source waveforms for electroseismic exploration

2004-04-16

2008-09-02

Keith, Jack W. (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C324S323000, C181S106000

Reissue Patent

active

RE040475

ABSTRACT:
A method for seismic exploration using conversions between electromagnetic and seismic energy, with particular attention to the electromagnetic source waveform used. According to the invention, source waveforms are correlated with reference waveforms selected to minimize correlation side lobes. Line power at 60 Hz may be used to provide a waveform element which may be sequenced by a binary code to generate an extended source waveform segment with minimal correlation side lobes. Preferred binary codes include Golay complementary pairs and maximal length shift-register sequences.

REFERENCES:
patent: 4295213 (1981-10-01), Mifsud
patent: 4467283 (1984-08-01), Owen et al.
patent: 4583095 (1986-04-01), Peterson
patent: 4904942 (1990-02-01), Thompson
patent: 5841280 (1998-11-01), Yu et al.
patent: 5877995 (1999-03-01), Thompson et al.
patent: 6427774 (2002-08-01), Thomas et al.
patent: 6597633 (2003-07-01), Millar et al.
Digital Communications with Space Applications,pp. 1-20,165-167, Solomon W. Golomb, editor, Prentice-Hall Inc. (1964).
Zierler, Neal, “Linear Recurring Sequences”,J. Soc. Indust. Appl. Math.,vol. 7 (1), pp. 31-48 (1959).
Cunningham, Allen B., “Some Alternate Vibrator Signals,”Geophysicsvol. 44 (12), pp. 1901-1921, (1979).
Duncan, P.M. et al, “The Development and Applications of a Wide Band Electromagnetic Sounding System Using a Pseudo-Noise Source,”Geophysicsvol. 45 (8), pp. 1276-1296, (Aug. 1980).
Foster, M.R. et al, “The Use of Pseudonoise Sequences to Code a Pulsed Neutron Logging Source,”Geophysicsvol. 37 (3), pp. 481-487, (Jun. 1972).
Kounias, S., et al, “On Golay Sequences,”Discrete Mathematics 92,pp. 177-185, (1991).
Yilmaz, O. “Seismic Data Processing,”Society of Exploration Geophysicists,pp. 18-19, (1987).
Golay, M.J.E., “Complementary Series”,IRE Transactions on Information Theory,7, pp. 82-87, (1961).

Affiliated with

Also associated with

Rating

Source waveforms for electroseismic 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 Source waveforms for electroseismic exploration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Source waveforms for electroseismic exploration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3968960