Autonomous data transmission apparatus

Details Autonomous data transmission apparatus Autonomous data transmission apparatus

1996-04-22

1997-03-25

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through well fluids

367156, 367168, 367912, 181106, 175 1, G01V 140, H01L 1104

Patent

active

056151721

ABSTRACT:
A autonomous borehole data transmission apparatus for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters.

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patent: 5069308 (1991-12-01), Yin et al.
patent: 5115880 (1992-05-01), Sallas et al.
patent: 5130953 (1992-07-01), Grosso
patent: 5414397 (1995-05-01), Kiesewetter
patent: 5534668 (1996-07-01), Ogura

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