Wells – Processes – Producing the well
Reexamination Certificate
2005-02-08
2005-02-08
Bagnell, David (Department: 3672)
Wells
Processes
Producing the well
C166S370000, C166S068000, C166S106000, C166S177300, C166S325000, C417S057000, C417S060000, C417S555200
Reexamination Certificate
active
06851480
ABSTRACT:
An improved, unattended, liquid pumping device for oil and gas wells featuring a bellows controlled flow valve that opens and closes at preset pressures. Additionally a well head receiver design that releases shut in production gas below the pumping device and provides a positive pressure differential across the pumping device prior to valve opening.
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Product Specification for ConCoyle Production Device entitled “An Underground Revolution”, published on or before Apr. 8, 2002.
Product Specification for JetStar Automatic Casing Plunger, published on or before Apr. 8, 2002.
Bordogna Richard J.
Hunt Charles H.
Swoyer Gerald L.
Yaniga Paul M.
Bagnell David
Brandywine Energy and Development Company, Inc.
Dann Dorfman Herrell and Skillman
Eland Stephen H.
Gay Jennifer
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