Device and process for intervention of a pit submarine, and cable for use during the operation of a pit submarine

摘要

Device and process for intervention of a pit submarine, and cable for use during the operation of a pit submarine ".A device for intervention of a pit submarine oil and / or gas by means of a tool (8) suspended by a cable (9), fed from or withdrawn,A vessel (1) and driven by a drive unit (12) located in the vessel.The device comprises a funnel (5) which has a housing tool for insertion of the tool to the inside of the well.And a stuffing box (40) which seals around the cable when the tool is inserted to the inside of the well.According to the invention an injector that drives the cable in the well is located in the lubricator and is controllable independently of the drive mechanism for the cable located in the vessel.The mechanism of activation and the injector can be synchronized in such a way, among others, which makes the cable is suspended in a predetermined arc during the intervention, by which,The vessel may be moved from the pit. In addition, the invention is relating to a process and a cable used in conjunction with the device.