Backpressure adapter pin and methods of use

Details Backpressure adapter pin and methods of use Backpressure adapter pin and methods of use

2005-09-06

2005-09-06

Dang, Hoang (Department: 3672)

Wells

Processes

Disassembling well part

C166S378000, C166S382000

Reexamination Certificate

active

06938696

ABSTRACT:
A tubing assembly including a tubing string and tubing hanger provides a fluid passage with backpressure threads for securing a backpressure plug in a fluid-tight seal below the tubing hanger, so that the tubing hanger can be removed from the tubing string. The back pressure threads are preferably incorporated in a backpressure adapter pin connected between the tubing string and the tubing hanger. The adapter pin may also incorporate external weight-bearing shoulders for snubbing and/or suspending the tubing assembly. The backpressure plug is inserted or removed using a backpressure plug tool that slides through a packing in a pressurized casement that maintains pressure in an axial passage through a control stack of the wellhead.

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