Patent attributes
A threaded tubular connection for drilling or operating hydrocarbon wells comprising a longitudinal axis, a metal pin member having a tapered two-step wedge pin thread with dovetail wedge threads and a pin sealing surface located between the small and large diameter pin thread steps, and a metal box member having a tapered two-step wedge box thread with dovetail wedge threads and a box sealing surface located between the small and large diameter box thread steps, wherein the tubular connection is free from any final make-up stop shoulder defining a final make-up position for the pin member relative to the box member, the small diameter wedge thread set and the large diameter wedge thread set are dimensioned to have a first axial clearance and a second axial clearance.