Joining of tubulars through the use of explosives

Details Joining of tubulars through the use of explosives Joining of tubulars through the use of explosives

E - Fixed Constructions

21

B

E21B 19/16 (2006.01) B23K 20/08 (2006.01) E21B 17/04 (2006.01) E21B 17/08 (2006.01) F16L 13/02 (2006.01) F16L 13/14 (2006.01)

Patent

CA 2446571

Embodiments of the present invention generally relate to methods and apparatus of connecting wellbore tubulars by explosive welding, using a frangible anvil, and reforming a surface of wellbore tubulars at a connection. In one embodiment, a first tubular is aligned proximate a second tubular such that an inside diameter of the first tubular and an outside diameter of the second tubular form an annular space, a frangible anvil is disposed in a bore defined by the tubulars, and an explosive charge placed around the outside surface of the first tubular is detonated. In another embodiment, tubulars are aligned, connected by explosive welding, and then reformed at the connection.

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