Underwater seismic testing

Details Underwater seismic testing Underwater seismic testing

1984-08-21

1987-07-21

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

181110, G01V 138

Patent

active

046823077

ABSTRACT:
A method of underwater seismic testing is disclosed which does not require the use of long hydrophone streamers and which dispenses with the conventional CDP stack technique. The method enables signal processing to commence as soon as the first shot has been fired. The method involves traversing the region of interest with a survey vessel while firing a single seismic source repeatedly and observing the sub-sea response to the repeated shots using a single seismic receiver to provide thereby single-trace data which is then processed to generate the required sub-sea geological data. The signal processing may be effected in two stages, the first being deconvolution and the second being "3-D" imaging, preferably using the Kirchoff integral formulation.

REFERENCES:
patent: 3574462 (1971-03-01), Gray
patent: 4516227 (1985-05-01), Wener et al.
Backus, Water Reverberations-Their Nature and Elimination, Geophysics, vol. XXIV, No. 2 (Apr., 1959), pp. 233-261.
Robinson, Predictive Decomposition of Time Series with Application to Seismic Exploration, Geophysics, vol. XXXII, No. 3 (Jun. 1967), pp. 418-484.
Peacock/Treitel, Predictive Deconvolution: Theory and Practice, Geophysics, vol. 34, No. 2, (Apr. 1969), pp. 155-169.
Schneider, Integral Formulation for Migration in Two and Three Dimensions, Geophysics, vol. 43, No. 1 (Feb., 1978), pp. 49-76.
Newman/White, Application of 3-D Seismics to Shallow Reef Delineation, Summary of Material Presented 1981.
Newman, 3-D Acoustic Model Experiments, Summary of material (not dated).

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