Acoustical pick-up for reception of signals from a drill pipe

Details Acoustical pick-up for reception of signals from a drill pipe Acoustical pick-up for reception of signals from a drill pipe

1974-10-29

1977-05-03

Birmiel, Howard A.

Communications: electrical

Selective

Interrogation response

73 405A, 340 8S, G01V 140

Patent

active

040217736

ABSTRACT:
An acoustical pick-up apparatus for use with a borehole acoustical telemetry system and which may be positioned on a drilling rig at a number of locations above the drill pipe, includes an electro-acoustical transducer coupled to a pick-up block having an arcuate contact face to conform to a cylindrical member on the drilling rig and a strap connected to the contact face at points spaced from the edge thereof.

REFERENCES:
patent: 2810546 (1957-10-01), Eaton et al.
patent: 3205477 (1965-09-01), Kalbfell
patent: 3283181 (1966-11-01), Johanson
patent: 3486375 (1969-12-01), Redwine et al.
patent: 3588804 (1971-06-01), Fort
patent: 3732728 (1973-05-01), Fitzpatrick
patent: 3742937 (1973-07-01), Manuel et al.
patent: 3789355 (1974-01-01), Patton
patent: 3900827 (1975-08-01), Lamel et al.

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