E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/26, 182/76
E21B 43/00 (2006.01) B01D 29/00 (2006.01) B01D 35/02 (2006.01) E21B 33/03 (2006.01) E21B 43/34 (2006.01)
Patent
CA 1082590
"ABSTRACT OF THE DISCLOSURE" Wellhead flow control apparatus for controlling the flow of fluids from a well producing fluids and debris including a novel device for separating and accumulating the debris. The device comprises an outer shell defining an enclosed accumulation chamber, a perforated outlet conduit communicating with the chamber to allow the passage of fluids but prevent passage of debris, and access means to facilitate periodic removal of the accumulated debris. The wellhead apparatus is especially useful for flow control of fluids from geothermal steam wells.
301378
Barnes Michael L.
Whitescarver Olin D.
Fetherstonhaugh & Co.
Union Oil Company Of California
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