Wells – Automatic
Patent
1982-03-02
1984-09-04
Therkorn, Ernest G.
Wells
Automatic
166 65R, 166107, 166369, 166265, 210104, 210109, 2102423, 210923, E21B 4338, E02B 1504
Patent
active
044691700
ABSTRACT:
Apparatus for skimming an overlying non-conductive lighter liquid from an underlying conductive 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.
REFERENCES:
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patent: 1107391 (1914-08-01), Welch
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patent: 4032444 (1977-06-01), Wright et al.
patent: 4273650 (1981-06-01), Solomon
Czaja John W.
Exxon Research and Engineering Co.
Schneider John S.
Therkorn Ernest G.
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