Method for adaptively suppressing noise transients in summed co-

Details Method for adaptively suppressing noise transients in summed co- Method for adaptively suppressing noise transients in summed co-

1994-06-21

1995-08-15

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 22, 364421, 181110, G01V 138

Patent

active

054425913

ABSTRACT:
Seismic data from co-located sensors of different genera are formatted into common velocity-receiver gathers and common pressure receiver gathers. A first ratio between the velocity signature amplitudes and the pressure signature amplitudes is measured within a fixed analysis window. A second ratio is measured between the pressure and velocity signatures for a weighting-zone window of limited extent. The first and second ratios are combined to form an equalization operator. The pressure and velocity signatures from within the weighting zone window are combined in the presence of the equalization operator to define a transient-free time-scale datum.

REFERENCES:
patent: 4344158 (1982-08-01), Landrum et al.
patent: 4937794 (1990-06-01), Marschall et al.
patent: 5293352 (1994-03-01), Chambers
patent: 5365492 (1994-11-01), Dragoset
Dragoset et al, 64th Annu. SEG Int. Octg. Oct. 23, 1994, pp. 857-860, CPAP No. SAI2.

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