Well pipe joint

Details Well pipe joint Well pipe joint

E - Fixed Constructions

21

B

10/25, 285/63

E21B 17/042 (2006.01) F16L 15/00 (2006.01) F16L 15/06 (2006.01)

Patent

CA 1266695

ABSTRACT A pipe joint for use with oil country tubular goods, such as tubing, casing, and drill pipe, and a threaded member adapted to be connected to another threaded member to form such a pipe joint are disclosed wherein selected mating threads of the joint and selected threads on the member that are adapted to mate with the threads of another threaded member have less clearance between the load flanks of the selected threads and the mating threads than do the other mating threads of the joint and the other threads of the member, when connected to another threaded member, to cause the selected threads to be stressed initially and to more uniformly stress all of the threads of the joint, when the joint is made-up and when additional external loads are applied.

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