Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Patent
1984-09-13
1985-10-15
Cangialosi, Salvatore
Communications: electrical
Wellbore telemetering or control
Using a specific transmission medium
250263, 350 962, 367 76, 455610, 455612, G01V 140
Patent
active
045477744
ABSTRACT:
An optical communication system for drill hole logging comprises an armored cable containing one or more glass clad optical fibers inside a tubular moisture barrier, a neodymium laser in the cable reel radiates infrared light into one of the fibers, a modulator in the downhole cable-head connector shell modulates light and returns it to the surface, and a semiconductor detector in the reel demodulates the data signal from the returning light.
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R. O. Harger, Optical Communication Theory, p. 255.
Cangialosi Salvatore
Kaiser K. R.
Optelcom, Inc.
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