Wet connection system for downhole equipment

摘要

A wet connection system suitable for use in hydrocarbon wells preferably comprises one or more elongate, small diameter conduits (50) which extend down the wellbore (2) and terminate adjacent a locating structure (11) on the production tubing (10). Equipment (70) deployed at the locating structure is connected to one or more self supporting conductors (30) which extend down the conduits from the wellhead (5). Preferably the conductors are retractable and the conduits are sealingly connected to the equipment, allowing the equipment and conductors to be deployed and recovered independently of each other and to be flushed with dielectric oil (99) pumped down the conduits after re-connection.

主权项

1. A system for remotely connecting a conductor to equipment deployed down a borehole,
including tubing extending down the borehole from an upper end of the borehole, the equipment being deployable through the tubing to a deployed position; a locating structure disposed on the tubing for receiving the equipment and supporting it in the deployed position; and at least one elongate conductor extending from the upper end of the borehole and including a terminal portion, the terminal portion being remotely connectable to and disconnectable from the equipment when the equipment is in the deployed position; wherein at least one elongate tubular conduit is arranged in fixed relation to the tubing, the conduit extending from the upper end of the borehole and including a lower end portion, the conduit being sealingly connectable to and disconnectable from the equipment when the equipment is in the deployed position, the lower end portion being fixed proximate the locating structure; the conductor being disposed inside the conduit, a clearance gap being defined between the conductor and the conduit.