Calibration of pressure gradient recordings

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting

Reexamination Certificate

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C367S015000, C367S020000, C367S024000

Reexamination Certificate

active

07319636

ABSTRACT:
A method for computing a pressure signal gradient. The method includes recording a plurality of pressure signals at least one of a first receiver and a second receiver. The first receiver and the second receiver are disposed within a cluster. The method further includes recording a plurality of pressure signals at the second receiver; computing a calibration filter for removing the difference in distortions between the pressure signals recorded at the first receiver and the pressure signals recorded at the second receiver; and computing the pressure signal gradient between the pressure signals recorded at the first receiver and the pressure signals recorded at the second receiver using the calibration filter.

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