Title:
TUBULAR VALVING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2011/002680
Kind Code:
A3
Abstract:
A tubular valving system includes, a tubular having a bore therethrough with at least one port defining fluidic communication between the bore and an outside of the tubular, and a valve stem disposed within the bore of the tubular that is longitudinally movable with respect to the tubular, the valve stem has an outer surface slidably engagable with the bore, the outer surface has features that provide variably choked fluidic communication between the bore and the at least one port, and an amount of choke varies depending upon a relative position of the valve stem with respect to the bore.
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Inventors:
JOSEPH PAUL (US)
Application Number:
PCT/US2010/039957
Publication Date:
April 14, 2011
Filing Date:
June 25, 2010
Export Citation:
Assignee:
BAKER HUGHES INC (US)
JOSEPH PAUL (US)
JOSEPH PAUL (US)
International Classes:
F16K1/52; E21B34/06; F16K27/00
Foreign References:
| US4360064A | 1982-11-23 | |||
| US4629002A | 1986-12-16 | |||
| US4951752A | 1990-08-28 | |||
| US5297634A | 1994-03-29 |
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