| 摘要 |
To protect a hydraulic, electric and/or other conduit (7) in an annular space (22) around a well casing (1) against damage from perforating and other well operations (23) the conduit (7) is arranged in a groove (5) in a U- or V-shaped protective gutter (3), which is secured to the outer surface of the well casing (1) and which is capable of deflecting a shaped charge (23,24). |
