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US 10,767,433 B2Granted
Integrated controls for subsea landing string, blow out preventer, lower marine riser package
AssigneeOneSubsea IP UK Limited
InventorsBilal Rafaqat Hussain, Khurram Rehmatullah, Christopher Nault, Vikas Rakhunde, Darcy Ryan
Life of this patent
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Abstract
A controls module for use with a subsea landing string, a blowout preventer (BOP) stack and a lower marine riser package (LMRP) is disclosed. The controls module can be integrated into the BOP stack or the LMRP or between the BOP stack and the LMRP. The controls module includes an input line that is coupled to control the subsea landing string through the BOP or the LMRP. The input line can be a hydraulic line, an electrical line, or a combination.
Claims24
A subsea landing string, comprising:
- a subsea landing string configured to couple to a wellhead on a seabed, the subsea landing string having a first input line component;
- a blowout preventer (BOP) stack coupled to the subsea landing string having one or more actuatable components;
- a controls module coupled to the subsea landing string above the BOP stack, the controls module comprising an input line, a second input line component, and a coupling mechanism, the coupling mechanism comprising a piston wherein the piston is configured move from a first position to a second position in response to hydraulic and/or electric actuation wherein the coupling mechanism is configured to couple the first input line component to the second input line component in response to movement of the piston from the first position to the second position;
- and
- a lower marine riser package (LMRP) coupled to the subsea landing string above the controls module, the LMRP having one or more actuatable components;
- wherein the one or more actuatable components in the BOP stack and the LMRP are configured to receive an input from the input line in the controls module.
3 more elements
A controls module, comprising:
- a plurality of ports configured to couple with corresponding ports on a subsea landing string on a wellhead, wherein the ports are coupled to input lines operably coupled to a remote control device;
- and
- a coupling mechanism configured to couple the plurality of ports on the controls module with the corresponding ports on the subsea landing string, wherein the input lines are configured to provide control inputs for both a blowout preventer (BOP) stack and a lower marine riser package (LMRP), the coupling mechanism comprises:
- a piston configured to move from a first position to a second position in response to hydraulic and/or electric actuation to move the plurality of ports on the controls module relative to the corresponding ports on the subsea landing string to couple the plurality of ports with the corresponding ports.
1 more element
A method, comprising:
- coupling together a controls module, a subsea landing string, a lower marine riser package (LMRP), and a blowout preventer (BOP) stack, wherein the controls module comprises an input line and a coupling mechanism;
- actuating the coupling mechanism hydraulically and/or electrically to move one or more input ports relative to corresponding ports on the subsea landing string to to couple the input line to the corresponding ports, wherein the one or more input ports are operably coupled to components within the subsea landing string, the LMRP, and the BOP stack;
- and
- operating the components via the controls module, the input line, and the one or more input ports.
1 more element
Dependencies are inferred from the claim text.