Wells – Processes – Placing or shifting well part
Reexamination Certificate
2007-01-02
2007-01-02
Bagnell, David (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S207000, C166S206000, C166S217000
Reexamination Certificate
active
10382390
ABSTRACT:
A one trip system for expanding a tubular that is solid or perforated or a screen comprises a downhole assembly that features a hydraulic anchor that can be set, released and repositioned to repeat the process. The anchor is small enough to go through the tubular or screen after initial expansion. The anchor's maximum extension is designed to avoid overstressing the already expanded tubular or screen. An expansion tool is hydraulically driven with the initial portion of the stroke delivering an enhanced force. The expansion tool initially supports the tubular or liner but subsequently releases during the first stroke, after the tubular or screen is fully supported.
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Baugh John L.
Davis John P.
Gomez Leopoldo S.
Lynde Gerald D.
Bagnell David
Baker Hughes Incorporated
Rosenblatt Steve
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