Controlled flow impedance in a pressure sensing system

Details Controlled flow impedance in a pressure sensing system Controlled flow impedance in a pressure sensing system

1975-07-10

1976-10-12

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

E21B 4706

Patent

active

039850277

ABSTRACT:
An unknown pressure at a remote location, such as in a borehole, is sensed by passing a fluid at a constantly increasing pressure, into a pressure sensitive device at the remote location. The pressure is monitored at the measurement location until a characteristic change in the rate of pressure buildup in the pressure sensitive device occurs. Effects of fluid supply pressure on the monitoring device are minimized in relation to buildup pressure in the pressure sensitive device by placing a flow control valve between the supply pressure source and the buildup pressure monitor.

REFERENCES:
patent: 3572121 (1971-03-01), Kessera et al.
patent: 3620085 (1971-11-01), Khoi
patent: 3712129 (1973-01-01), Rhoades
patent: 3874231 (1975-04-01), Walther, Jr.

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