Non-rotation lock screw

摘要

A non-rotation lock screw for a wellhead assembly is provided that includes a rotating portion and a non-rotating portion. The non-rotating portion includes a distal end configured to engage a component of the wellhead assembly, and may include one or more seals. The rotating portion may be rotating into a component of wellhead assembly such that the non-rotating portion translates in a radial direction. The rotating portion and non-rotating portion may be coupled together via a bearing to enable free rotation of the rotating portion. Systems and methods of operation that include the non-rotation lock screw are also provided.

主权项

1. A system, comprising:
a wellhead assembly, comprising:
a spool having a first axial bore and a radial bore;a hanger disposed in the first axial bore of the spool, wherein the hanger comprises a second axial bore and a recess; anda lock screw having first and second portions disposed in the radial bore, wherein the first portion has first threads directly threaded into the radial bore, the second portion has a first seal sealed against the radial bore, the first portion is configured to rotate relative to the second portion and the spool to move the second portion between an unlocked position out of the recess and a locked position within the recess in the hanger, and the locked position of the lock screw blocks axial movement of the hanger.