发明名称 |
METHOD AND DEVICE FOR JOINING OILFIELD TUBULARS |
摘要 |
PCT No. PCT/EP98/00647 Sec. 371 Date Jun. 29, 1999 Sec. 102(e) Date Jun. 29, 1999 PCT Filed Feb. 3, 1998 PCT Pub. No. WO98/33619 PCT Pub. Date Aug. 6, 1998A method for joining well and other oilfield tubulars by amorphous bonding comprises the steps of positioning a body of amorphous material (16) between adjacent and surfaces of a pair of oilfield tubulars (3, 4) that are to be joined and using induction heating to melt the amorphous material and create on cooling a metallurgical bond between the tubulars (3, 4). Throughout the heating and bonding process the tubulars (3, 4) are fixed in axial alignment with each other using clamp means which include a mandrel (1) which is inserted into the interior of the tubulars (3, 4) so that the bonding process can be performed in a sealed chamber (17, 18) which is filled with an inert gas. |
申请公布号 |
EP0958094(A1) |
申请公布日期 |
1999.11.24 |
申请号 |
EP19980909399 |
申请日期 |
1998.02.03 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;SHELL CANADA LIMITED |
发明人 |
BLIAULT, ALAN, EDGAR, JOHN;CUMMING, FRANCIS, ALEXANDER;LAWS, MARK, SETH |
分类号 |
B23K13/02 |
主分类号 |
B23K13/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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