Monobore shoe
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United States of America Patent
Stats
-
Jan 18, 2005
Grant Date -
Dec 4, 2003
app pub date -
May 21, 2003
filing date -
May 31, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of attaching a tubular to an existing tubular in a well without reducing the inside diameter of the well is described. A shoe is attached to the lower end of the existing lowermost casing or tubular, generally prior to the casing being cemented or otherwise secured in the wellbore. The shoe has a diameter larger than the inside diameter of the casing or tubular to which it is attached. Subsequently, a liner is run in until its top end is in the enlarged diameter region of the shoe. A hanger can be optionally used. The liner is expanded into the enlarged diameter so that the net result is that the inside diameter in the wellbore is not reduced by the addition of the liner.
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