专利检索 ap:("VALLOUREC MANNESMANN OIL & GAS FRANCE") AND inv:"DUQUESNE, Benoît, Résidence Le Jardin du Théâtre" 第 1 页

1.

发明公开
MALE ELEMENT FOR A SEALED THREADED TUBULAR CONNECTION 有权
标题翻译： MALE用于封缄管件

公开(公告)号：EP1787052A1

公开(公告)日：2007-05-23

申请号：EP05801541.3

申请日：2005-09-08

申请人： VALLOUREC MANNESMANN OIL & GAS FRANCE

发明人： FONTAINE, Ludovic , DUQUESNE, Benoît, Résidence Le Jardin du Théâtre , MOLINS, Grégory

IPC分类号： F16L15/06

CPC分类号： E21B43/106 , F16L15/001

摘要： Before tapered reduction swaging of the end region of a tube and machining in this region of a tapered male threading (2) and a male lip (3) to obtain a male tubular element for makeup into a female tubular element to form a sealed threaded tubular connection after diametrical expansion, the tube is shaped over a portion of its length to produce a cylindrical internal surface (20) which connects via a chamfer (21) to the cylindrical internal surface (10) of the lip (3) obtained subsequently by machining, the radius (R2) of the first surface being greater than the radius (R1) of the second surface. Application to hydrocarbon wells.