Technique for expanding tubular structures

Details Technique for expanding tubular structures Technique for expanding tubular structures

E - Fixed Constructions

21

B

E21B 29/08 (2006.01) B21D 41/02 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2414432

A system for expanding tubular structures. The system comprises a mandrel that is moved through the center of a tubular structure to increase the diameter of the tubular structure via deformation. The system utilizes an expansion device having a mandrel with multiple segments moved between a contracted state and an expanded state. In one embodiment, the mandrel segments are spring biased to permit a degree of independent movement of each mandrel segment with respect to the other mandrel segments.

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