Method and apparatus for obtaining seismic vibrator reflection d

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

367 41, 364421, G01V 128

Patent

active

049263927

ABSTRACT:
A method and apparatus for obtaining seismic vibrator reflection data is disclosed with a significant signal to noise ratio. The earth is sinusoidally vibrated with source vibrations linearly varying over time. The amplitudes of the reflections from the subsurface strata interfaces are sensed and multiplied by the amplitude of the source vibrations, resulting in a first representation of the product as a function of time. A second representation of the product is calculated in association with negative values of time, such that phase consistency between the two representations is maintained. The two representations are then mathematically combined, with values of zero associated with all other values of time. The two representations are then linearly transformed into a function of frequency, and loaded into an array for computer operation. An inverse Fourier transform is the performed on the combined representations as a function of frequency, resulting in a timedomain representation of the combined representations indicating the delay times between the source vibrations and the sensed reflections. After various mathematical steps, the waveform is displayed in a form adapted to geophysical analysis.

REFERENCES:
patent: 3863057 (1975-01-01), Siems
Handley, "Vibrolokator Method of Interpreting Seismograms from Vibrator Energy Sources", Thesis T-2082, 1978, Colorado School of Mines.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for obtaining seismic vibrator reflection d 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 and apparatus for obtaining seismic vibrator reflection d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for obtaining seismic vibrator reflection d will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-627331

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.