Deployment tubing connector having internal electrical...

Device for activating and measuring nonflowing producing wells

Device for anchoring a probe in a well, by opening mobile arms

Device for carrying out measuring and servicing operations in a

Device for exploring an underground formation crossed by a horiz

Device for locking a cable passing across the wall of a tube suc

Device for manipulating a tool in a well tubular

Device for monitoring a deposit for a production well

Device for the seismic monitoring of an underground deposit

Device to determine free point

Device to move density logging tool against well wall

Disconnection device for a wireline

Down hole electrically operated safety valve

Down hole mud circulation for wireline tools

Downhole actuation system utilizing electroactive fluids

Downhole apparatus for generating electrical power in a well

Downhole device for controlling fluid flow in a well

Downhole electric power generator

Downhole electrical power system

Downhole flow control devices