Method and apparatus for transmitting information relating to th

Details Method and apparatus for transmitting information relating to th Method and apparatus for transmitting information relating to th

1994-07-20

1996-05-28

Eldred, J. Woodrow

Communications: electrical

Wellbore telemetering or control

Using a specific transmission medium

3408549, 3408551, 3408552, 3408558, G01V 300

Patent

active

055215920

ABSTRACT:
A method and apparatus for transmitting information relating to the operation of an electrical device disposed in a borehole, in which information picked up by at least one downhole sensor is conveyed to surface reception means via the wire connection connecting said device to electrical power supply means on the surface, the invention being characterized in that said wire connection is inductively coupled firstly with said sensor and secondly with said reception means.

REFERENCES:
patent: 3340500 (1967-09-01), Boyd et al.
patent: 4157535 (1979-06-01), Balkanli
patent: 4523194 (1985-06-01), Hyde
patent: 4631535 (1986-12-01), Butlin
patent: 4646083 (1987-02-01), Woods
patent: 4788545 (1988-11-01), Farque
patent: 4901069 (1990-02-01), Veneruso
patent: 4901070 (1990-02-01), Vandevier
patent: 5008664 (1991-04-01), More et al.

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