Wells – Processes – Assembling well part
Patent
1993-06-07
1994-09-20
Neuder, William P.
Wells
Processes
Assembling well part
166384, E21B 1700
Patent
active
053480953
ABSTRACT:
A method of creating a wellbore in an underground formation is provided. A borehole is drilled in the underground formation, whereafter a casing of a ductile material is lowered into the borehole. The casing is selected to have a smaller elastic radial deformation than the surrounding formation when the casing is radially expanded against the borehole wall by application of a radial force to the casing. Said radial force is applied to the casing so as to radially expand the casing against the borehole wall thereby inducing a plastic radial deformation of the casing and an elastic radial deformation of the surrounding underground formation, whereafter the radial force is removed from the casing.
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Choate Paul R.
Donnelly Martin
Lohbeck Wilhelmus C. M.
Worrall Robert N.
Neuder William P.
Shell Oil Company
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