Non-rotation lock screw
AssigneeCameron International Corporation
InventorDennis P. Nguyen
Life of this patent
Estimating the term…
Abstract
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.
Claims26
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 lock screw disposed in the radial bore, wherein the lock screw comprises a first portion having first threads and a second portion having a first seal, and the first portion is configured to rotate relative to the second portion and the spool to move the second portion between an unlocked position and a locked position with the hanger.
A system, comprising:
- a hanger lock screw configured to mount in a radial bore of a spool surrounding a hanger, wherein the lock screw comprises a first portion having first threads and a second portion having a first seal, and the first portion is configured to rotate relative to the second portion and the spool to move the second portion between an unlocked position and a locked position with the hanger.
A system, comprising:
- a lock screw configured to mount in a radial bore of a first wellhead component surrounding a second wellhead component, wherein the lock screw comprises a first portion having first threads and a second portion having a first seal, and the first portion is configured to rotate relative to the second portion and the spool to move the second portion between an unlocked position and a locked position with the hanger.
Dependencies are inferred from the claim text.