Well flow control apparatus

Details Well flow control apparatus Well flow control apparatus

E - Fixed Constructions

21

B

166/42

E21B 23/02 (2006.01) E21B 23/03 (2006.01) E21B 23/08 (2006.01) E21B 34/14 (2006.01) E21B 43/12 (2006.01) E21B 43/14 (2006.01)

Patent

CA 1192128

Abstract A side pocket mandrel designed primarily for controlling the flow of production fluid into a tubing string includes a sliding sleeve valve in the side wall receptacle for alternatively closing and opening the entry port into the receptacle. The sleeve valve is latched in its port-closing position, but is designed to enable removal from the receptacle bore for servic- ing; and a pulling tool is provided for removing the sleeve valve from the receptacle when desired. The sleeve is shifted to its port-opening position when a standing flow control valve is placed in the receptacle; and the standing valve has a large valve chamber and side entry and exit ports for the production fluid to provide for maximum flow. The standing valve provides a check valve into the producing zone, the valve closure member being a modified ball consisting of a cylindrical body with spherical ends and coacting with a spherical valve seat. During flow through the valve, the closure member is moved completely out of the flow path for maximum flow.

420028

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