Method and system for controlling slip joint packer activation
First Claim
1. A system for monitoring and controlling packer activation in a riser slip joint comprising:
- a first electronically actuated valve disposed between a first packer of the riser slip joint and a first packer fluid pressure source for the actuation of the first packer;
a second electronically actuated valve disposed between a second packer of the riser slip joint and a second packer fluid pressure source for the actuation of the second packer;
at least one pressure sensor for monitoring at least one of a pressure between the first packer and the first packer fluid pressure source and a pressure between the second packer and the second packer fluid pressure source; and
a control unit operable to actuate the first and second electronically actuated valves in response to at least one input signal comprising a pressure signal from the at least one pressure sensor to control the activation of the first and second packers;
wherein the control unit is configured to control the actuation of the first and second electronically actuated valves independently to enable at least one of the first and second packers to be energized irrespective of the status of the other one of the first and second packers.
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Accused Products
Abstract
The invention provides a system and method for controlling packer activation in a riser slip joint. The system comprises a first electronically actuated valve disposed between a first packer and a fluid pressure source for the actuation of the first packer. A second electronically actuated valve is disposed between a second packer and a fluid pressure source for the actuation of the second packer. A control unit is operable to actuate the first and/or second electronically actuated valve in response to at least one input signal to control the activation of the first and second packers, and is configured to control the actuation of the first and second electronically actuated valves independently.
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Citations
24 Claims
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1. A system for monitoring and controlling packer activation in a riser slip joint comprising:
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a first electronically actuated valve disposed between a first packer of the riser slip joint and a first packer fluid pressure source for the actuation of the first packer; a second electronically actuated valve disposed between a second packer of the riser slip joint and a second packer fluid pressure source for the actuation of the second packer; at least one pressure sensor for monitoring at least one of a pressure between the first packer and the first packer fluid pressure source and a pressure between the second packer and the second packer fluid pressure source; and a control unit operable to actuate the first and second electronically actuated valves in response to at least one input signal comprising a pressure signal from the at least one pressure sensor to control the activation of the first and second packers; wherein the control unit is configured to control the actuation of the first and second electronically actuated valves independently to enable at least one of the first and second packers to be energized irrespective of the status of the other one of the first and second packers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of monitoring and controlling packer activation in a riser slip joint comprising:
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providing a packer activation apparatus comprising a first electronically actuated valve disposed between a first packer of the riser slip joint and a first packer fluid pressure source for the actuation of the first packer and a second electronically actuated valve disposed between a second packer of the riser slip joint and a second packer fluid pressure source for the actuation of the second packer; monitoring, using at least one pressure sensor, at least one of a pressure between the first packer and the first packer fluid pressure source and a pressure between the second packer and the second packer fluid pressure source; receiving at least one input signal in a control unit, the input signal comprising a pressure signal from the at least one pressure sensor; generating a control signal from the control unit in response to the at least one input signal from the at least one pressure sensor to control the actuation of the first and second electronically actuated valves; controlling, using the control unit, the actuation of first and second electronically actuated valves independently to energize at least one of the first and second packers irrespective of the status of the other one of the first and second packers. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification