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U.S. Department of Energy
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Downhole pipe selection for acoustic telemetry

Patent ·
OSTI ID:870217
A system for transmitting signals along a downhole string including a plurality of serially connected tubular pipes such as drill or production pipes, a transmitter for transmitting a signal along the string and a receiver for receiving the signal placed along the string at a location spaced from said transmitting means, wherein the pipes between the transmitter and the receiver are ordered according to length of tube to minimize loss of signal from said transmitter to said receiver.
Research Organization:
AT & T CORP
DOE Contract Number:
AC04-76DP00789
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
US 5477505
OSTI ID:
870217
Country of Publication:
United States
Language:
English

References (1)

Attenuation of sound waves in drill strings journal October 1993