Title:
METHOD AND APPARATUS FOR ONE TRIP TUBULAR EXPANSION
Document Type and Number:
WIPO Patent Application WO2003076763
Kind Code:
A9
Abstract:
A one trip system for expanding a tubular (176) that is solid or perforated or a screen is disclosed. The downhole assembly features a hydraulic anchor (10) that can be set, released and repositioned to repeat the process is used. The anchor (10) is small enough to go through the tubular (176) or screen after initial expansion. The anchor's maximum extension is designed to avoid overstressing the already expanded tubular or screen. An expansion tool (180) is hydraulically driven with the initial portion of the stroke delivering an enhanced force, the expansion tool (180) initially supports the tubular or liner but subsequently releases during the first stroke, after the tubular or screen is fully supported.
Inventors:
LYNDE GERALD D
BAUGH JOHN L
GOMEZ LEOPOLDO S
DAVIS JOHN P
BAUGH JOHN L
GOMEZ LEOPOLDO S
DAVIS JOHN P
Application Number:
PCT/US2003/007024
Publication Date:
June 03, 2004
Filing Date:
March 07, 2003
Export Citation:
Assignee:
BAKER HUGHES INC (US)
International Classes:
E21B4/18; E21B43/10; (IPC1-7): E21B43/10; E21B4/18
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