| 摘要 |
<p>An apparatus (1) and method for cutting and pulling of a casing (7, 7') in a well, where the apparatus (1) comprises: - a housing (2) connected to a wired connection (3); - a cutting tool (4) arranged in connection with the housing (2), where said cutting tool (4) is rotatable around the longitudinal axis (L) of the housing (2) and arranged to be able to provide at least one cut-out (8) in the wall of the casing (7') and to be able to cut the casing (7, 7'); and a holding device (5) for controlled holding of the housing (2) in the casing (7'); the apparatus (1) being provided with at least one radially displaceable gripping means (6) arranged to go into engagement with the at least one cut-out (8) in the wall of the casing (7'); and where the method comprises the following steps: - to bring the apparatus (1) down into the well; - to position the apparatus (1) in order to carry out a first cut; - to carry out the first cut; - to position the apparatus (1) in order to carry out a second cut; - to carry out the second cut; one of the first cut and the second cut comprising cutting of the casing (7); - to bring at least one gripping means (6) into engagement with at least one of the first and the second cut; and - to pull the cut casing (7') out of the well by means of the apparatus (1).</p> |
