Cutting a tube by deformation

Details Cutting a tube by deformation Cutting a tube by deformation

E - Fixed Constructions

21

B

E21B 29/00 (2006.01) B21D 17/04 (2006.01) B21D 39/04 (2006.01)

Patent

CA 2497854

Disclosed is a method of cutting a section of riser coupled to a wellhead assembly, the method comprising providing a cutting device having at least one radially extendable rolling member defining a raised circumferential portion, positioning the device at a predetermined location in the riser, and extending the member to contact the riser at the location and rotating the device to deform the riser, the degree of deformation being such that the riser is cut at the location.

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