Threaded tubular connection which is resistant to bending...

Details Threaded tubular connection which is resistant to bending... Threaded tubular connection which is resistant to bending...

2005-03-22

2010-02-16

Bochna, David E (Department: 3679)

Pipe joints or couplings

Particular interface

Tapered

Reexamination Certificate

active

07661727

ABSTRACT:
A threaded tubular connection includes a male tubular element including a male threaded portion and a female tubular element including a female threaded portion that cooperates by screwing with the male threaded portion. The threaded connection includes at least one transfer zone that can transfer bending loads between the elements and that is axially spaced from the threaded portions, in which the male and female elements have an undulating surface and a smooth surface facing each other, the undulating surface defining a series of rounded annular ribs that come into contact with the smooth surface with a radial interference fit. The connection may find application to production strings for hydrocarbon wells.

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