Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2008-06-12
2010-11-16
Bomar, Shane (Department: 3676)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S319000, C166S372000
Reexamination Certificate
active
07832486
ABSTRACT:
A gas lift valve has a flow restrictor, a valve part on one side of the flow restrictor, a flow deflector and a tubular member on another side of the flow restrictor, and a flapper valve on the side of the flow restrictor where the tubular member is located, the flapper valve being adjacent to the tubular member. When fluid flows into the gas lift valve at sufficient pressure, the valve part opens, the fluid flows through the flow restrictor and acts on the flow diverter thereby moving the tubular member and opening the flapper valve. The tubular member extends though the opening the flapper valve covered.
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Abdelall Fahd F.
Burnett, III Kenneth C.
Garner James
McCalvin David
Messick Tyson
Bomar Shane
Curington Tim
McGoff Kevin B.
Schlumberger Technology Corporation
Warfford Rodney V.
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