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公开(公告)号：EP1554518A1
公开(公告)日：2005-07-20
申请号：EP03788949.0
申请日：2003-10-10
CPC分类号： F16L15/001 , C10M103/04 , C10M103/06 , C10N2230/06 , C10N2250/121 , C10N2250/14 , C10N2280/00 , E21B17/042 , F16L58/182
摘要： A threaded metallic pipe for oil extraction industry has a threaded end portion with treated surface in which the metal surface has a roughness (Ra) comprised of 2,0 µm and 6,0 µm, which is covered by a uniform layer (7) of a dry corrosion inhibiting coating and a second uniform layer (8) of dry lubricant coating. Alternatively the layers (8, 9) combined into one uniform layer (9) of a dry corrosion inhibiting coating containing a dispersion of particles of solid lubricant.
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公开(公告)号：EP1711735A1
公开(公告)日：2006-10-18
申请号：EP05702393.9
申请日：2005-01-31
CPC分类号： B65D59/06 , E21B17/006 , F16L57/005 , Y10S285/901
摘要： A pipe thread protector (1) includes a case (2), a first seal member (4), and a second seal member (6). The case (2) is attachable to an end of a pipe (P) to protect a threaded region (T) of the pipe (P). The case (2) has a cylindrical or frustoconical portion (8) having threads (10) over at least a portion of its length to engage the threaded region (T) of the pipe, and an annular end portion (12) configured to abut a distal end (D) of the pipe (P). A first seal member (6) is disposed at the cylindrical portion (8) of the case (2), and a second seal member (6) is disposed at the annular end portion of the case (12). At least one of the first and second seal members (4, 6) (i) is detachable from the case (2), and (ii) comprises a material different than a material of the case (2).
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公开(公告)号：EP1599689A1
公开(公告)日：2005-11-30
申请号：EP04710000.3
申请日：2004-02-11
IPC分类号： F16L15/06
CPC分类号： F16L15/001 , F16L15/002 , F16L15/003
摘要： Described herein is a threaded joint, in which the threads are coated with a layer of dry lubricant having a thickness of between 5 pm and 30 pm and in which the nominal void volume NW of the space (6, 7) between the thread of the male tube and the thread of the female tube, is sized by means of the following formulae (I), where OD is the nominal outer diameter and Wt is the thickness of the wall of the pipes.
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公开(公告)号：EP1711735B1
公开(公告)日：2009-08-19
申请号：EP05702393.9
申请日：2005-01-31
CPC分类号： B65D59/06 , E21B17/006 , F16L57/005 , Y10S285/901
摘要： A pipe thread protector (1) includes a case (2), a first seal member (4), and a second seal member (6). The case (2) is attachable to an end of a pipe (P) to protect a threaded region (T) of the pipe (P). The case (2) has a cylindrical or frustoconical portion (8) having threads (10) over at least a portion of its length to engage the threaded region (T) of the pipe, and an annular end portion (12) configured to abut a distal end (D) of the pipe (P). A first seal member (6) is disposed at the cylindrical portion (8) of the case (2), and a second seal member (6) is disposed at the annular end portion of the case (12). At least one of the first and second seal members (4, 6) (i) is detachable from the case (2), and (ii) comprises a material different than a material of the case (2).
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公开(公告)号：EP1554518B1
公开(公告)日：2009-01-21
申请号：EP03788949.0
申请日：2003-10-10
CPC分类号： F16L15/001 , C10M103/04 , C10M103/06 , C10N2230/06 , C10N2250/121 , C10N2250/14 , C10N2280/00 , E21B17/042 , F16L58/182
摘要： A threaded metallic pipe for oil extraction industry has a threaded end portion with treated surface in which the metal surface has a roughness (Ra) comprised of 2,0 µm and 6,0 µm, which is covered by a uniform layer (7) of a dry corrosion inhibiting coating and a second uniform layer (8) of dry lubricant coating. Alternatively the layers (8, 9) combined into one uniform layer (9) of a dry corrosion inhibiting coating containing a dispersion of particles of solid lubricant.
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公开(公告)号：EP1599689B1
公开(公告)日：2007-11-14
申请号：EP04710000.3
申请日：2004-02-11
IPC分类号： F16L15/06
CPC分类号： F16L15/001 , F16L15/002 , F16L15/003
摘要： Described herein is a threaded joint, in which the threads are coated with a layer of dry lubricant having a thickness of between 5 pm and 30 pm and in which the nominal void volume NW of the space (6, 7) between the thread of the male tube and the thread of the female tube, is sized by means of the following formulae (I), where OD is the nominal outer diameter and Wt is the thickness of the wall of the pipes.
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