E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
182/132
E21B 43/38 (2006.01) B01D 17/025 (2006.01)
Patent
CA 1195936
ABSTRACT OF THE DISCLOSURE Apparatus and method for skimming an overlying non-conductive lighter liquid from an underlying con- ductive heavier liquid in a two liquid body which are particularly applicable for recovering oil and/or gasoline from a well. A skimmer designed to float in the two-liquid body contained in the well includes a closed cylindrical float, a hollow cylindrical skirt installed over a portion of one end of the float and permanently attached to the float. The end of the skirt surrounding the float is open to the lighter liquid. Spaced-apart liquid level controls are positioned on the skirt for sensing the liquid/liquid interface level. The other end of the skirt is connected to a pump for removing lighter liquids collected in the skirt. Means operated by the controls turn the pump off and on in response to higher and lower levels, respectively, of the two-liquid interface.
421722
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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