公开(公告)号：EP1692421A1

公开(公告)日：2006-08-23

申请号：EP04805502.4

申请日：2004-11-22

申请人： VALLOUREC MANNESMANN OIL & GAS FRANCE

发明人： DUBEDOUT, Laurent ,  DUQUESNE, Benoît, Résidence le Jardin du Théâtre ,  VERGER, Eric ,  MOLINS, Grégory

IPC分类号： F16L15/04

CPC分类号： E21B43/106 ,  E21B17/042 ,  E21B43/103 ,  F16J15/04 ,  F16L15/004 ,  F16L15/04

摘要： The invention relates to a sealed tubular joint, initially comprising a first male tubular element (EM), with a male thread (FM), a first annular lip (L1), with a first axial abutting surface (SB1), a first internal surface (SI1), a section of a first external surface (SE1), a second abutting surface (SB2) and a second female tubular element (EF), with a female thread (FF), matching the male thread (FM), a second annular lip (L2), with a third abutting surface (SB3), a second external surface (SE2), arranged to face the first internal surface (SI1), a second internal surface (SI2) and a fourth axial abutting surface (SB4), supporting the first abutting surface (SB1) and defining, in particular with the second external surface (SE2), an annular housing (LO), matching the first lip (L1). The second (SB2) and third (SB3) abutting surfaces are initially conical with angles of inclination which are effectively identical and which permit, on screwing, the contact of the second abutting surface (SB2) against the third abutting surface (SB3), generating a first radial locking and sealing contact of the first internal surface (SI1) or external surface (SE1) against the second external surface (SE2), or the third internal surface (SI3), and then, with a diametrical expansion in the region of the plastic deformation by means of an axially-displaceable expansion tool, the first external surface (SE1) and the third internal surface (S13) are forced to locally define a second locking and sealing contact.

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.

公开(公告)号：EP1692421B1

公开(公告)日：2009-07-01

申请号：EP04805502.4

申请日：2004-11-22

申请人： VALLOUREC MANNESMANN OIL & GAS FRANCE

发明人： DUBEDOUT, Laurent ,  DUQUESNE, Benoît, Résidence le Jardin du Théâtre ,  VERGER, Eric ,  MOLINS, Grégory

IPC分类号： F16L15/04

CPC分类号： E21B43/106 ,  E21B17/042 ,  E21B43/103 ,  F16J15/04 ,  F16L15/004 ,  F16L15/04

摘要： The invention relates to a sealed tubular joint, initially comprising a first male tubular element (EM), with a male thread (FM), a first annular lip (L1), with a first axial abutting surface (SB1), a first internal surface (SI1), a section of a first external surface (SE1), a second abutting surface (SB2) and a second female tubular element (EF), with a female thread (FF), matching the male thread (FM), a second annular lip (L2), with a third abutting surface (SB3), a second external surface (SE2), arranged to face the first internal surface (SI1), a second internal surface (SI2) and a fourth axial abutting surface (SB4), supporting the first abutting surface (SB1) and defining, in particular with the second external surface (SE2), an annular housing (LO), matching the first lip (L1). The second (SB2) and third (SB3) abutting surfaces are initially conical with angles of inclination which are effectively identical and which permit, on screwing, the contact of the second abutting surface (SB2) against the third abutting surface (SB3), generating a first radial locking and sealing contact of the first internal surface (SI1) or external surface (SE1) against the second external surface (SE2), or the third internal surface (SI3), and then, with a diametrical expansion in the region of the plastic deformation by means of an axially-displaceable expansion tool, the first external surface (SE1) and the third internal surface (S13) are forced to locally define a second locking and sealing contact.