Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1988-01-19
1989-12-05
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 43, G01V 140
Patent
active
048857220
ABSTRACT:
A method for separating high frequency impulse data from received signal in which it is superimposed on low frequency noise is disclosed. Median filtering is applied to the received signal to remove the impulse data therefrom. The resultant filtered signal is subtracted from the original signal; the remainder includes only the impulses from the original signal. The invention is described in connection with borehole imaging and casing collar locating logging operations, both useful geophysical tools.
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Hager Jr. George W.
Lobo Ian J.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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