Oil well tubing string hanging device and lifting assembly

Details Oil well tubing string hanging device and lifting assembly Oil well tubing string hanging device and lifting assembly

E - Fixed Constructions

21

B

E21B 33/04 (2006.01)

Patent

CA 2254391

An oil well tubing string hanging device and lifting assembly to hang a tubing string within an oil well, and a method of retaining an oil well tubing string in tension within an oil well. The device includes a hanger shell suspended within or connected to the oil well casing, a lifting assembly, and may include a mandrel mounted within the hanger shell. The lifting assembly is connected to the tubing string and is securable to the hanger shell or the mandrel. When the lifting assembly is disengaged from the hanger shell or the mandrel, the lifting assembly and the production tubing string that is attached thereto may be independently lifted within the oil well without removal or lifting of the mandrel or the hanger shell.

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