E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 29/00 (2006.01) B21D 39/08 (2006.01) B21D 41/02 (2006.01) E21B 29/08 (2006.01)
Patent
CA 2461855
A method of expanding tubing comprises locating an expansion device in tubing to be expanded, vibrating one or both of the tubing and the expansion device, and translating the expansion device relative to the tubing, the vibration acting to reduce friction between the tubing and the device.
Abercrombie Simpson Neil Andrew
Rudd Wayne
Marks & Clerk
Weatherford/lamb Inc.
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