Method of creating a wellbore in an underground formation

Details Method of creating a wellbore in an underground formation Method of creating a wellbore in an underground formation

E - Fixed Constructions

21

B

E21B 43/10 (2006.01) E21B 7/20 (2006.01) E21B 29/10 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2137560

A method of creating a wellbore in an underground formation is provided, the method comprising drilling a borehole (1) in the underground formation (3), lowering a casing (5) of a malleable material into the borehole, said casing being radially expansible against the borehole wall upon application of a radial load (7) and having a smaller elastic radial deformation than the surrounding formation upon application of said load. The radial load is applied to the casing thereby radially expanding the casing against the borehole wall so as to induce a compressive force between the casing and the surrounding formation.

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