Method of creating a wellbore in an underground formation
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United States of America Patent
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-
Apr 16, 2002
Grant Date -
Jun 7, 2001
app pub date -
Jan 26, 2001
filing date -
Apr 9, 1999
priority date (Note) -
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Abstract
A method of creating a wellbore in an underground formation comprising drilling a borehole in the underground formation using a drilling tubular, capable of being expanded, to which a downhole motor driving a drill bit has been connected, and, after drilling to the desired casing setting depth, expanding the drilling tubular into place to line the borehole by applying a radial load to the drilling tubular and removing said load from the drilling tubular.
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