Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2006-06-20
2006-06-20
Bagnell, David (Department: 3672)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S369000
Reexamination Certificate
active
07063162
ABSTRACT:
The inflow of fluid from an oil and/or gas bearing formation into an oil and/or gas production well is cyclically moved up and down along the length of an inflow region of the well by cyclically changing the opening of one or more control valves.
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International Search Report dated May 10, 2002.
Daling Roelof
Droppert Vincent Sebastiaan
Glandt Carlos Alberto
Green-Armytage Duncan Ian
Jansen Johan Dirk
Bagnell David
Shell Oil Company
Smith Matthew J.
Stiegel Rachael A.
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