THREADED TUBULAR CONNECTION WITH PROGRESSIVE AXIAL THREAD INTERFERENCE

摘要

The threaded connection of the invention comprises at least one contact zone (5, 6) axially separated from threadings (3, 4) in which the male and female elements (1, 2) are in sealed contact via bearing surfaces respectively constituted by a cambered surface and by a tapered surface. Such a contact zone ensures a seal against fluids despite positional inaccuracies in the male and female elements at the end of makeup, due to the geometrical characteristics of the threadings.Application to oil and gas wells.