Information transmitting apparatus using tube body

Details Information transmitting apparatus using tube body Information transmitting apparatus using tube body

1995-10-20

1997-10-07

Lobo, Ian J.

Communications: electrical

Wellbore telemetering or control

Using a specific transmission medium

367 82, G01V 140

Patent

active

056753250

ABSTRACT:
An information transmitting apparatus using a tube includes a magnetostrictive vibrator to generate a first elastic wave depending upon underground information, a resonance tube body resonating with the elastic wave to generate a second elastic wave having a natural frequency, and a drill string to propagate the second elastic wave, thereby permitting a long transmission distance.

REFERENCES:
patent: 3790930 (1974-02-01), Lamel et al.
patent: 3900827 (1975-08-01), Lamel et al.
patent: 3906434 (1975-09-01), Lamel et al.
patent: 4283780 (1981-08-01), Nardi
patent: 4293936 (1981-10-01), Cox et al.

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