Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1991-09-12
1993-04-27
Cohan, Alan
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
137172, B01D 17025
Patent
active
052053105
ABSTRACT:
Net oil production from a low volume high watercut well or other source of a water-oil mixture is accurately metered with systems which include a separator vessel which allows a water-oil mixture to collect and form a separate oil layer on top of the water and which has liquid level sensors and an oil detector which measures the presence of an oil layer. The sensors are arranged in such a way with associated control circuits so that the vessel does not discharge oil until a significant accumulation of an oil layer occurs in the vessel. The systems each include a liquid discharge conduit and a motor operated control valve connected to a logic circuit which receives signals from the level sensors and the oil detector to provide cyclic operation of the valve to discharge water from the vessel repeatedly until a relatively large quantity of oil collects and then discharges all of the oil prior to resumption of the operating cycle.
REFERENCES:
patent: 2051180 (1936-08-01), Ruzicka
patent: 2701602 (1955-02-01), Crawford
patent: 2984360 (1961-05-01), Smith
patent: 3202167 (1965-08-01), DeYoung
Hetherington William D.
Kolpak Miroslav M.
Atlantic Richfield Company
Cohan Alan
Martin Michael E.
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