Device for remote transmission of information

Details Device for remote transmission of information Device for remote transmission of information

1985-07-22

1987-10-06

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through well fluids

367 81, 340853, 340861, H04H 900

Patent

active

046987940

ABSTRACT:
In a device for the transmission of information from a borehole to the surface during the operation of a drilling device which comprises a rotary drill bit, a tubular housing and a pump which delivers a drilling fluid downwards through the tubular housing, through the rotary drill bit and upwards in the annular space between the tubular housing and the borehole, there is provided a detector arranged in the tubular housing, for detecting information, a processor for converting that information into a sequence of electrical control signals and a transducer for generating pressure pulses in the downwardly-directed flow of drilling fluid as a function of the control signals, and a remote detector arranged at a position spaced from the processor by a wire-less transmission path with a transmitter unit associated with the remote detector at one end of said path and a receiver unit at the other end of said path.

REFERENCES:
patent: 2352833 (1944-07-01), Hassler
patent: 2759143 (1956-08-01), Arps
patent: 2958821 (1960-11-01), Webb
patent: 4103281 (1978-07-01), Storm et al.
Ward et al., "Borehole Telemetry System is Key to Continuous Down-Hole Drilling Measurements", Sep. 1975, pp. 111-118.

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