| 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. |
