Controller for plunger lift system for oil and gas wells

Details Controller for plunger lift system for oil and gas wells Controller for plunger lift system for oil and gas wells

1985-12-13

1987-05-12

Croyle, Carlton R.

Pumps

Drilled well free piston-type pump

13762415, 166 53, 340853, 364422, 417 58, F21B 3416

Patent

active

046646027

ABSTRACT:
A controller is disclosed for a plunger lift system for oil and gas wells that monitors the casing pressure, flow line pressure, and battery voltage and overrides the on-time and off-time periods to either shut the well in or open the flow line valve when certain casing or flow line pressures exist or when the battery voltage drops to a preselected minimum.

REFERENCES:
patent: 3351021 (1967-11-01), Moore, Jr.
patent: 3467875 (1969-09-01), Engle
patent: 4150721 (1979-04-01), Norwood
patent: 4227862 (1980-10-01), Andrew et al.
patent: 4352376 (1982-10-01), Norwood
patent: 4355365 (1982-10-01), McCracken et al.
patent: 4410038 (1983-10-01), Drapp

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