Subsurface flow control apparatus

Details Subsurface flow control apparatus Subsurface flow control apparatus

1975-03-21

1976-07-13

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 53, 166224R, 166314, E21B 4300, E21B 4706

Patent

active

039688399

ABSTRACT:
A subsurface control which can be installed and retrieved from the interior of a borehole by a wireline. The apparatus is preferably located at the bottom of the borehole and controls production by a pulse flow type operation which shuts in the well prior to reaching the critical flow rate. The apparatus more efficiently utilizes well energy in lifting liquid to the surface of the ground, and includes means therein which cyclically operates in response to flow rate and bottomhole pressure. In one embodiment of the invention, the apparatus is used in combination with a free traveling plunger.

REFERENCES:
patent: 2251244 (1941-07-01), Stanley
patent: 2519242 (1950-08-01), Garrett et al.
patent: 2962099 (1960-11-01), Clark, Jr.
patent: 3025798 (1962-03-01), Coberly et al.
patent: 3090316 (1963-05-01), Montgomery
patent: 3318386 (1967-05-01), Garrett et al.

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