| 摘要 |
The invention concerns a casing tool and a method for connecting casing tubulars using a top drive. The casing tool comprises a top cover that may be connected either releasably or non-releasably to the top drive and an elongated inner body that may be connected releasingly to the top cover. The inner body displays a longitudinally directed through-going channel, preferably with a gasket near one of its longitudinal ends, and comprises a first longitudinal part slideably arranged within the lop cover and a second longitudinal part that may be guided into a casing tubular. One or more radially displaceable clamps is connected to the lower part of the casing tool for engaging the inside wall of the casing tubular. The radial displacement of the clamps is achieved by use of radial displacement means. |
