Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1986-12-29
1988-10-25
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 29, 367 69, 181105, G01V 140
Patent
active
047808586
ABSTRACT:
In connection with a borehole televiewer system (10), the delta time (51) between low threshold (54) crossing (T.sub.1) and signal peak arrival (T.sub.2) provides a measure of mudcake (43) thickness.
REFERENCES:
patent: 3175639 (1965-03-01), Liben
patent: 4524433 (1985-06-01), Broding
patent: 4646565 (1987-03-01), Siegfried
patent: 4658383 (1987-04-01), Zimmer
patent: 4692908 (1987-09-01), Elkstrom et al.
Lobo Ian J.
Shell Oil Company
Tarcza Thomas H.
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