Abstract: A wellhead assembly and a tubing hanger comprising: an outer hanger body for supporting the tubing hanger in a tubing head, the outer hanger body including: an upper end and a lower end; an outer surface having a downwardly tapering shape; an inner bore extending from the upper end to the lower end; a lockdown shoulder; an annular extension between the lockdown shoulder and the upper end of the outer hanger body; and an annular seal extending around an outer diameter of the annular extension, the annular seal configured to seal against debris passing therepast down along the outer surface from the upper end toward the lockdown shoulder when the tubing hanger is supported in a tubing head.

Abstract: A drive assembly for a tubing rotator comprising: a linear force to motive force convertor including an input for receiving a linear motion drive force and an output for outputting a rotary motion drive force, an arm for receiving a linear drive force and inputting it to the linear force to motive force convertor and an actuator couplable to a polish rod and configured for transmitting a linear drive from the polish rod to the arm.

Abstract: A tubing hanger includes: a mandrel for connection to a tubing string; an outer hanger body for supporting the mandrel in the well, the mandrel supported in a main bore of the outer hanger body by J-lock mechanisms. The outer hanger body can be supported in the tubing head or in bowl of a tubing rotator.