Method and apparatus for expanding a welded connection
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United States of America Patent
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Aug 30, 2005
Issued Date -
N/A
app pub date -
Feb 27, 2003
filing date -
Jan 31, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention generally relates to methods of connecting two expandable tubulars. In one aspect, the method includes flash welding the ends of the expandable tubulars together. Thereafter, the connected tubulars are lowered into the wellbore for expansion. The flash welding process provides a highly reliable joint for expansion. In another aspect, the present invention provides a method for expanding a non-uniform tubular. In one embodiment, the non-uniform tubular is formed by connecting two misaligned tubulars.
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