Alignment mechanism
AssigneeOneSubsea IP UK Limited
InventorsAlexander Mattey, Paul Osborne, John Maher
Life of this patent
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Abstract
A method includes landing a conductor housing on a wellbay. The method also includes engaging a first alignment feature on the wellbay with an orientation feature on the conductor housing. The method also includes engaging an alignment pin on the conductor housing with a wellhead housing. The wellhead housing includes a second alignment feature. The method further includes landing a tubing hanger alignment gasket using the second alignment feature of the wellhead housing. The tubing hanger alignment gasket provides orientation for a tubing hanger as the tubing hanger is landed through a blow-out preventer.
Claims19
A method to angularly orientate a conductor housing, a wellhead and a tubing hanger with respect to each other, comprising:
- landing the conductor housing inside a wellbay;
- engaging a first alignment feature on an internal diameter of the wellbay with an orientation feature on an external diameter of the conductor housing;
- engaging an alignment pin on the conductor housing within a wellhead housing, wherein the alignment pin and the wellhead housing set orientation of the conductor housing within the wellhead, wherein the wellhead housing comprises a second alignment feature;
- landing a tubing hanger alignment gasket using the second alignment feature of the wellhead housing, wherein the tubing hanger alignment gasket provides orientation for the tubing hanger as the tubing hanger is landed through a blow-out preventer.
A system to angularly orientate a conductor housing, a wellhead and a tubing hanger with respect to each other, comprising:
- a wellbay comprising an internal diameter with a first alignment feature;
- a conductor housing concentrically located within the wellbay and comprising an orientation feature on an external diameter of the conductor housing and an alignment pin, wherein the first alignment feature is configured to engage the orientation feature;
- a wellhead housing in the wellhead, such wellhead housing being configured to receive the alignment pin to set orientation of the conductor housing within the wellhead, wherein the wellhead housing comprises a second alignment feature;
- a tubing hanger alignment gasket configured to be landed using the second alignment feature of the wellhead housing, wherein the tubing hanger alignment gasket provides orientation for the tubing hanger as the tubing hanger is landed through a blow-out preventer.
A system to angularly orientate a wellhead and a tubing hanger with respect to each other, comprising:
- a wellhead housing having an internal diameter with a self-guided alignment feature;
- and
- a tubing hanger alignment ring gasket landed concentrically inside the wellhead housing using the alignment feature of the wellhead housing, wherein the tubing hanger alignment ring gasket comprises a guidance feature;
- wherein the tubing hanger is configured to land inside the wellhead housing at a desired orientation via engagement with the guidance feature during landing.
Dependencies are inferred from the claim text.