Vallourec Oil and Gas France

Nippon Steel & Sumitomo Metal Corporation

Sumitomo Metal Industries, Inc.

Vallourec & Mannesmann Oil & Gas France

Jérôme Durivault

Nigel Cross

Florian Peuchot

Eric Verger

Pierre Bernard Martin

Bertrand Maillon

Anne-Sophie Bureau-Bayart

Anthony Applincourt

An expandable threaded connection includes: first and second tubular components including respective male and female ends including respective first and second and third and fourth threaded zones, insertion regions, first and second annular tongues, prominent abutment faces, and first and second concavities; the first and second tongues are respectively engaged in the second and first concavities in a made up condition, the abutment face of at least one tongue in contact with at least one concavity; the male end including a first surface between the first threaded zone and the first tongue, and the female end including a second surface between the third threaded zone and the second concavity; in the made up condition, the first and second surfaces define an annular space include large and small radial dimension zones which, after expansion, can form a metal-metal contact seal, the first tongue bearing on the second tongue.

Expansible threaded joint and method for making same

A device, and a method of using the device, for inspecting a threading of a tubular component for exploration or working of hydrocarbon wells, the device including a threaded support that can cooperate by makeup with the threading of the tubular component, a mechanism blocking advance of the threaded support during makeup with the threading of the tubular component, a longitudinal rail fixed to the blocking mechanism and extending in a direction belonging to a plane passing through the axis of the threading of the treaded support, a mechanism inspecting treading of the tubular component, and a mechanism for longitudinal guidance to guide inspecting mechanism along the longitudinal rail.

Method and device for inspecting a threading of a tubular connection used in the oil industry

A device and method for inspecting a width of thread roots of a tubular component for exploration or working of hydrocarbon wells, the device including two arms each including a first and a second end, the first ends being connected together by a deformable portion allowing an angular displacement between the second ends, the second ends each carrying a contact element and a mechanism determining the angular displacement.

A threaded connection used in exploration and operation of hydrocarbon wells includes first and second tubular components, including respective male and female ends and threaded zones. The threaded zones include respective male and female threads, the threads including a root, a crest, a stabbing flank, and a load flank. A groove is provided in the load flank of the threaded zone of the female end and/or the male end respectively, adjacent to the root, and a boss projects axially from the load flank of the threaded zone of the male end and/or respectively from the female end adjacent to the crest, the boss including a convex and concave surfaces. The boss is housed in the groove with, in a connected state, a radial clearance between the concave surface and the groove and an axial clearance between the end of the boss and the bottom of the groove.

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Paris, France

Jérôme Durivault