Invention Grant
- Patent Title: Threaded connection comprising at least one threaded element with an end lip for a metal tube
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Application No.: US12741054Application Date: 2008-11-03
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Publication No.: US09605781B2Publication Date: 2017-03-28
- Inventor: Sylvain Beigneux , Daly Daly , Bertrand Maillon , Claire Patureau , Eric Verger , Michihiko Iwamoto , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
- Applicant: Sylvain Beigneux , Daly Daly , Bertrand Maillon , Claire Patureau , Eric Verger , Michihiko Iwamoto , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
- Applicant Address: FR Aulnoye-Aymeries JP Chiyoda-ku
- Assignee: VALLOUREC OIL AND GAS FRANCE,NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee: VALLOUREC OIL AND GAS FRANCE,NIPPON STEEL & SUMITOMO METAL CORPORATION
- Current Assignee Address: FR Aulnoye-Aymeries JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0707819 20071107
- International Application: PCT/EP2008/009405 WO 20081103
- International Announcement: WO2009/059778 WO 20090514
- Main IPC: F16L15/00
- IPC: F16L15/00 ; E21B17/042

Abstract:
A threaded tubular connection includes a female threaded portion at a first tubular component end and a male threaded portion at a second tubular component end, the female threaded portion including a female thread, at least one female sealing surface on its inner peripheral surface, and at least one female axial abutment surface, the male threaded portion including a male thread, at least one male sealing surface on its outer peripheral surface, at least one axial abutment surface, and a lip disposed between the sealing surface and an axial abutment surface located at a free end of the threaded portion distant from the thread, the male thread being made up into the female thread such that at least one male axial abutment surface is in contact with at least one female axial abutment surface, at least one male sealing surface being in interference contact with at least one corresponding female sealing surface, the portion of the lip between the sealing surface and the axial abutment surface being radially distant from a corresponding surface of the other threaded portion, at least one leak channel being provided in one of the threaded portions to place the chamber formed between the lip and the corresponding surface of the other threaded portion in communication with the interior of the connection.
Public/Granted literature
- US20100301603A1 THREADED CONNECTION COMPRISING AT LEAST ONE THREADED ELEMENT WITH AN END LIP FOR A METAL TUBE Public/Granted day:2010-12-02
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