Dual completion tubing hangers are segmented designs available for both offshore and onshore applications (with or without continuous control lines). Both designs can be used in the SD tubing head.

The annulus seal is energized by running in the lockscrews after both hanger segments are landed. The SD-CL hangers provide a control line nipple which supports and seals the control line while protecting it from the extrusion seal. Both the SD and SD-CL designs use seal subs which are installed after the hanger is landed to seal on the dual adapter.

An internal profile is provided in each hanger segment for setting a back pressure valve.