G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/28 (2006.01) B01D 17/02 (2006.01) B01D 17/12 (2006.01) E21B 43/34 (2006.01) G01F 15/08 (2006.01)
Patent
CA 2078029
DP 50-6-1260A ABSTRACT OF THE DISCLOSURE 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.
Hetherington William D.
Kolpak Miroslav M.
Atlantic Richfield Company
Osler Hoskin & Harcourt Llp
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