Expanding tubing with a radially extendable expander and cone

Details Expanding tubing with a radially extendable expander and cone Expanding tubing with a radially extendable expander and cone

E - Fixed Constructions

21

B

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

Patent

CA 2473217

This invention relates to expanding tubing, and in particular to expansion of tubing downhole. Embodiments of the invention relate to anchoring and expanding tubing downhole. In one embodiment, a method of expanding tubing such as a section of casing (10) is disclosed, the method comprising the steps of locating the casing (10) in a bore (12), expanding a portion of the casing (10) to engage the bore wall using an expansion tool (16) having at least one radially movable expansion member, in the form of a roller (24) of a rotary expander (20), and then expanding a further portion of the casing (10) by advancing a cone expander (22) through the casing (10).

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