| 摘要 |
An apparatus for facilitating the connection of tubulars using a top drive, said apparatus comprising a motor ( 4, 4' ) for rotating a tool ( 30 ) for drivingly engaging a tubular, and means ( 3 ) for connecting said motor ( 4, 4' ) to said top drive, the apparatus being such that, in use, said motor ( 4, 4' ) can rotate one tubular with respect to another to connect said tubular. |
