Variable choke valve

Details Variable choke valve Variable choke valve

E - Fixed Constructions

21

B

E21B 34/14 (2006.01) F16K 3/24 (2006.01) F16K 25/00 (2006.01) F16K 47/00 (2006.01)

Patent

CA 2551945

Embodiments of the present invention generally provide a more reliable variable choke flow control valve. In one embodiment, a variable choke valve for use in a wellbore is provided. The valve includes a tubular housing having an axial bore therethrough and a port through a wall thereof. The valve further includes a tubular sleeve having an axial bore therethrough and first and second holes through a wall thereof and disposed within the housing. The first hole is larger than the second hole, and the sleeve is actuatable among three positions: a first position where the first hole is aligned with the port, a second position where the second hole is aligned with the port, and a third position where the sleeve wall is aligned with the port.

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