Tubing hangers are installed in the top bowl of a tubing head. Tubing hangers both suspend the
tubing and provide a primary annulus seal between the tubing and production casing.
Hangers are run through the blowout preventers and are landed in the top bowl of the tubing head. Tubing hangers are available for any type of tubing completion. Tubing hangers also act as a means to access and manipulate additional smaller tubing lines that are utilized down hole and extended to the surface on the outside of the tubing string or strings. Packoffs allow tubing string manipulation for setting packers or displacing fluid while sealing the annulus between the tubing and the production casing.
Manual tubing hanger is supplied with back-pressure valve threads and body seals that will activate manually by the lockdown screws.
Self Energized Hanger
The self energized extended neck tubing hanger is supplied with back-pressure valve threads and annular dovetail body seals that will self energize and seal without the aid of a lockdown screw.
Hanger with Control-lines
This tubing hanger is also equipped with self energized seals and is built with down hole control line preparation to allow convenient passing through chemicals into the wellbore through the wellhead assembly.
EFT Tubing Hanger and related equipment offers a simplified but highly efficient method of running a high voltage electrical conduit into a wellhead assembly when completion demands an electric driven submersible pump.
Threaded or split-type hangers and adapters can be used with the Delta EFT system. This design can be accommodated up to 2500 volt systems. The entire EFT tubing hanger assembly can be run or retrieved through the stack.
The dual tubing hanger is a split hanger with integrated energizing plates and seals which is activated by the lockdown screws. Neither plastic injection nor addition of other pack off element is required to produce the annular seal.