Borehole fluid replacement means and method

Details Borehole fluid replacement means and method Borehole fluid replacement means and method

1995-01-31

1996-07-30

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 25, 367911, 181102, 181105, G01V 140, H01L 4110

Patent

active

055418899

ABSTRACT:
The signal-to-noise ratio of televiewer signals from a rotary sidewall acoustic-beam scanner is improved by replacing the volume of borehole drill fluid that lies in the path of the acoustic beam with a solid medium characterized by a lower coefficient of attenuation than that of the drill fluid.

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