Well data telemetry by explosions

Details Well data telemetry by explosions Well data telemetry by explosions

1976-11-17

1978-01-03

Birmiel, Howard A.

Communications: electrical

Selective

Interrogation response

175 455, 175 50, 181103, G01V 140

Patent

active

040669947

ABSTRACT:
A data telemetry system for use in a plugged exploratory borehole to transmit measurements of subsurface conditions after long delays by use of seismic waves. The system includes a sensor for detecting a downhole condition, such as temperature, and converting it to electrical signals, a timer, and a series of explosive charges. The timer detonates a first of the charges at a preselected time delay and a second charge at a further time delay corresponding to the electrical output of the sensor. The seismic waves generated by the explosions are detected by a seismometer on the earth's surface near the exploratory borehole.

REFERENCES:
patent: 1926327 (1933-09-01), Burrell et al.
patent: 2062151 (1936-11-01), Weatherby
patent: 2992694 (1961-07-01), Musgrave et al.
patent: 3773120 (1973-11-01), Stroud et al.
patent: 3971317 (1976-07-01), Genupnell

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