Safety device for retrieving component within wellhead
AssigneeCameron International Corporation
InventorsRandall Dean Harkins, Kirk Paul Guidry, Thomas Edgar Taylor
Life of this patent
Estimating the term…
Abstract
A system is provided that includes a safety device configured to mount in a mineral extraction system and block axial movement of a plug in the mineral extraction system while the plug is released from a retainer. The safety device may be a sleeve configured to receive screws or other retention mechanism in a tubular. A method is provided that includes installing a plug safety catch into a tubular of a mineral extraction system in which the safety device is configured to block axial movement of a plug in response to a pressure differential while the plug is released from a mount position.
Claims31
A system, comprising:
- an annular safety device configured to mount in a mineral extraction system with a plug, such that the annular safety device has a central axis parallel to the central axis of the plug and is disposable above the plug, wherein the annular safety device has a portion configured to block axial movement of a plug through the annular safety device in the mineral extraction system while the plug is removed from a retainer separate from the annular safety device along the central axis of the plug.
A system, comprising:
- a tubular configured to receive an annular sleeve and couple to a mineral extraction system, wherein the tubular is configured to retain the annular sleeve, within an inner diameter of the tubular, as a safety device to block axial movement of a plug while the plug is released in the mineral extraction system.
A system, comprising:
- a plug configured to mount in a mineral extraction system;
- and
- an annular sleeve configured to mount in the mineral extraction system independent from the plug, wherein the annular sleeve is configured to block axial movement of the plug while the plug is axially moveable along a central axis of the plug within the mineral extraction system.
A safety apparatus for a wellhead assembly with a plug, the apparatus comprising:
- an annular member disposable in a wellhead assembly above the plug, wherein the internal diameter of the annular member is less than the external diameter of the plug, the annular member is configured to be disposed within an inner diameter of a tubular member of the wellhead assembly, and the annular member is configured to block axial movement of the plug within the inner diameter of the tubular member.
A wellhead assembly comprising a plug insertable by a tool, comprising:
- a tubular member;
- the plug;
- and
- an annular member disposed above the plug;
- wherein the annular member has an internal diameter less than the external diameter of the plug but greater than a diameter of the tool, and the annular member is configured to pass the tool through the internal diameter of the annular member.
A system, comprising:
- an annular member configured for disposal in a wellhead assembly;
- and
- a plug configured for disposal in the same wellhead assembly below the annular member;
- wherein the annular member is configured to block axial movement of the plug, and the annular member is disposed within an internal diameter of a tubular member of the wellhead assembly.
Dependencies are inferred from the claim text.