Discrete frequency seismic exploration using non uniform frequen

Details Discrete frequency seismic exploration using non uniform frequen Discrete frequency seismic exploration using non uniform frequen

1975-05-08

1977-01-18

Birmiel, Howard A.

Communications: electrical

Selective

Having electron beam device

340 155CP, G01V 114

Patent

active

040042677

ABSTRACT:
A seismic exploration method is described in which a vibratory source transmits into the earth a series of discrete wave packets of different center frequencies, at least some of which are not uniformly spaced in frequency. Some of the center frequencies may, for example, be related to each other as a geometric progression. Each wave packet that is transmitted into the earth preferably has a modulation envelope according to a sinusoidal modulating wave that eliminates transient effects due to termination of the wave packet and minimizes the number of discrete wave packets required to define a given frequency band width. The received waves are recorded and later summed with a zero phase relationship relative to a common reference time. The composite record is similar to that obtained from an explosive source.

REFERENCES:
patent: 3182743 (1965-05-01), McCollum
patent: 3259878 (1966-07-01), Mifsud
patent: 3568142 (1971-03-01), Landrum, Jr. et al.
patent: 3731268 (1973-05-01), Landrum, Jr.

Affiliated with

Also associated with

Rating

Discrete frequency seismic exploration using non uniform frequen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Discrete frequency seismic exploration using non uniform frequen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discrete frequency seismic exploration using non uniform frequen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-75769