Method for reducing diameter reduction near ends of expanded...

Details Method for reducing diameter reduction near ends of expanded... Method for reducing diameter reduction near ends of expanded...

E - Fixed Constructions

21

B

E21B 43/10 (2006.01) E21B 29/00 (2006.01)

Patent

CA 2646448

A method of expanding a tubular downhole, comprises positioning the tubular downhole, advancing an expansion device toward an end of the tubular, configuring at least one end of the tubular so as to eliminate or minimize, after expansion with the expansion device, the reduction in end drift diameter as compared to an interior portion of the tubular, and providing one of an internal groove of constant diameter to the end of the tubular and an internal taper of increasing diameter extending toward the end of the tubular, before advancing the expansion device through the end.

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