| 摘要 |
A tool 10 for penetrating a tubular includes at least one length of linear shaped charge 18, a carrier adapted to support the/each length of linear shaped charge, and at least one detonation mechanism for detonating the/each length of linear shaped charge 18. Upon detonation of the/each length of linear shaped charge 18, a length of material is projected outwardly from the/each length of linear shaped charge 18 towards an internal surface of the tubular, which is thereby penetrated. The at least one length of linear shaped charge 18 is arranged such that, upon detonation, the trajectory of at least one portion of the projected material intersects the trajectory of at least one other portion of projected material at or adjacent the internal surface of the tubular. The result is that the penetrations define closed areas or shapes 38 on the surface of the tubular. The tool 10 may also be used to penetrate other objects. |
