Casing gas pump

Details Casing gas pump Casing gas pump

1983-05-02

1985-07-16

Croyle, Carlton R.

Pumps

With condition responsive pumped fluid control

Pump inlet or pump chamber vented to ambient

417309, 166 685, 92244, F04B 4900

Patent

active

045293643

ABSTRACT:
A casing gas pump is reciprocated by the pump jack of an oil well. Push rods slidable within rigid vertical cylinders are connected by a bridle bracket to bridle cables depended from the pump jack horsehead. Vertical reciprocation of the horsehead moves pump leathers connected to the push rods up and down within cylinder bores. The cylinders are vertical, non-pivoting and fluidly connected to a header. The header is connected to the annulus of the well and to a gas line. Check valves prevent back flow from the header into the annulus and from the gas line into the header. The pump leathers form reciprocating pistons that are formed and assembled to avoid pulling a vacuum on the annulus.

REFERENCES:
patent: 1915827 (1933-06-01), Kickler
patent: 2174123 (1939-09-01), Davis
patent: 2274304 (1942-02-01), Perry
patent: 2555426 (1951-06-01), Trautman et al.
patent: 2560676 (1951-07-01), White
patent: 2765742 (1956-10-01), King
patent: 4345734 (1982-08-01), Studinger
patent: 4369839 (1983-01-01), Freeman et al.
Joy et al., "Flexible Sucker Rod in the Works", The Oil and Gas Journal, 7-15-68, pp. 138-140.

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