Wells – Processes – Producing the well
Reexamination Certificate
2008-04-22
2008-04-22
Neuder, William P (Department: 3672)
Wells
Processes
Producing the well
C166S332800
Reexamination Certificate
active
07360602
ABSTRACT:
Gas lift valve designs and gas lift systems are described that feature a positive closure mechanism that is highly resistant to significant wear or damage that would result in fluid leakage. A pivotable flapper member is incorporated into a gas lift valve and used as a flow control mechanism. The flapper member provides a positive barrier to fluid flow from the production tubing to the annulus, even after substantial wear or damage.
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Chapman Walt R.
Holt James H.
Kritzler James H.
Randazzo Vic
Baker Hughes Incorporated
Hunter Shawn
Neuder William P
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