Tubing hanger apparatus and wellhead assembly for use in oil...

Details Tubing hanger apparatus and wellhead assembly for use in oil... Tubing hanger apparatus and wellhead assembly for use in oil...

E - Fixed Constructions

21

B

E21B 33/04 (2006.01)

Patent

CA 2603557

A tubing hanger apparatus includes a tubing hanger with a plurality of segments thereon that engage an annular groove of a tubing head thus preventing the tubing hanger from sliding down a well. The internal diameter wellhead bore is consistent from the master valve downward to the production casing. The tubing hanger has a plurality of annular seats which are expandable after insertion into the tubing head. A plurality of lock screws both expand the seals as well as prevent any further movement of the tubing hanger. The tubing hanger apparatus is situated below a master valve. Thus, coiled tubing or jointed tubing ean be ran down the well and landed below the master valve. The tubing hanger contains a back pressure valve, thus the master valve can be opened without releasing the formation pressure within the live well.

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