Threaded connection for drill pipes

Details Threaded connection for drill pipes Threaded connection for drill pipes

E - Fixed Constructions

21

B

E21B 17/042 (2006.01)

Patent

CA 2481609

A pin and box of a threaded connection are provided with interference fit metal to metal seals on both sides of a reverse thread section. The pin nose and box nose respectively are received in undercuts in the box shoulder and nose shoulder. The pin nose and box nose engage the respective shoulders at the same time on make-up. The thread section has a low profile, and the pin and box are kept short to reduce bending stresses.

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