Down hole well tool with expansion tool
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United States of America Patent
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Jan 6, 2015
Issued Date -
N/A
app pub date -
Jun 30, 2010
filing date -
Jul 6, 2009
priority date (Note) -
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Abstract
A down hole well tool (3) for installing a casing/liner (1) in a well bore (2), wherein the down hole well tool comprises a tool unit comprising at least one first fluid conduit (6) and a return fluid conduit (5) in use forming an annulus between the tool unit and the casing/liner. The tool unit further comprises at least one piston (7a, 7b) in the annulus dividing the annulus into annulus spaces (8a, 8b, 8c). At least two expansion modules (9a, 9b) for the expansion of the casing are positioned displaced in the axial direction of the casing. The expansion modules are arranged to be moved relative to each other in the axial direction of the casing.
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