Wells – Processes – Producing the well
Reexamination Certificate
2007-03-27
2007-03-27
Neuder, William (Department: 3672)
Wells
Processes
Producing the well
C166S105000, C166S068000, C166S066600
Reexamination Certificate
active
10685296
ABSTRACT:
The present invention generally provides apparatus and methods for removing liquid from a well. In one embodiment, a cable and subsurface safety valve assembly is used with a downhole pumping system to remove water from the well. The cable and subsurface safety valve assembly allows the cable to run from surface to a pumping unit while maintaining safety valve integrity. In another aspect, the cable and subsurface safety valve assembly may be adapted for use with an existing production tubing.
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Introduction—RNG Lock Velocity String System, Weatherford Completion Systems, 2002, U.S.A.
U.K. Search Report, Application No. GB0422688.2, dated Jan. 12, 2005.
MacKay Graham
McLeod Steve
Rae Colin
Riddell Martin
Coy Nicole A
Neuder William
Patterson & Sheridan L.L.P.
Weatherford / Lamb, Inc.
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