Patent ID: 7527304

Claim:
A tubular connection comprising: a pin member having a first external thread in an engaged step of the pin member and a second external wedge thread in a floating step of the pin member, the first external thread having load flanks, stab flanks, roots, and crests, and the second external thread having load flanks, stab flanks, roots and crests; a box member having a first internal thread having in an engaged step of the box member and a second internal wedge thread in a floating step of the box member, the first external thread having load flanks, stab flanks, roots, and crests, and the second internal wedge thread having load flanks, stab flanks, roots, and crests; and wherein, there exists at least one selected clearance between the load flanks and stab flanks of the second external wedge thread and corresponding stab flanks and load flanks of the second internal wedge threads upon makeup of the connection, the at least one selected clearance being selected according to elastic deformation at makeup and the elastic deformation limit of at least one material of the tubular connection at makeup; a positive-stop torque shoulder having an elastic deformation limit, and wherein: the positive-stop torque shoulder is engage at makeup, and an initial makeup location is determined by deformation of the load flanks in the engaged step and deformation of opposed surfaces of the positive-stop torque shoulder at makeup; and the clearance between the stab flanks in the floating step plus the deformation of the positive-stop torque shoulder at makeup is no greater than the elastic deformation limit of the positive-stop torque shoulder.