Subsea well pressure monitor

Details Subsea well pressure monitor Subsea well pressure monitor

1991-11-15

1992-12-15

Eldred, J. Woodrow

Communications: electrical

Underwater

3408546, 367141, 166337, 166336, H04B 1302

Patent

active

051721120

ABSTRACT:
A pressure measuring device will measure pressure in a subsea tubular member. The device includes a stationary unit mounted to the exterior of the tubular member and a movable unit that will be lowered into position next to the stationary unit whenever pressure is to be monitored. The stationary unit has a strain gage which will monitor pressure by measuring strain in the tubular member. The stationary unit has a light emitter which will emit pulses corresponding to pressure measured. The stationary unit has a photocell which will receive a light beam from the movable unit. The light beam and photocell provide power for the stationary unit. The movable unit has a receiver which receives any light pulses from the light emitter and correlates them to a pressure measurement.

REFERENCES:
patent: 3019397 (1962-01-01), Witt et al.
patent: 3611277 (1971-10-01), Yoder
patent: 3621911 (1971-11-01), Baker et al.
patent: 4021661 (1977-05-01), Levine
patent: 4147222 (1979-04-01), Patten et al.
patent: 4167215 (1979-09-01), Thorne
patent: 4826577 (1989-05-01), Lange

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