Control system
First Claim
Patent Images
1. A control system for use in a subterranean well, the system comprising:
- a control line within the subterranean well;
a hydraulic line within the subterranean well;
a power generation device positioned within the subterranean well, the power generation device being configured to receive hydraulic pressure applied from surface via at least one of the control line and the hydraulic line and to generate electrical power from the applied hydraulic pressure; and
an electrically activated valve positioned within the subterranean well,wherein the electrically activated valve is adapted to receive electrical power generated by the power generation device thereby enabling the valve to selectively allow hydraulic pressure to be applied via the hydraulic line to a hydraulically activated downhole tool positioned within the subterranean well for the selective operation of the downhole tool.
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Abstract
A control system for use in a subterranean well comprises at least one power generation device positioned within the subterranean well, the at least one power generation device adapted to supply electrical power to at least one apparatus positioned within the subterranean well and at least one control line positioned in the subterranean well. The at least one control line connects each power generation device to surface and is adapted to supply a hydraulic pressure applied from surface to the at least one power generation device from which the at least one power generation device generates the electrical power to be supplied to the at least one apparatus.
38 Citations
26 Claims
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1. A control system for use in a subterranean well, the system comprising:
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a control line within the subterranean well; a hydraulic line within the subterranean well; a power generation device positioned within the subterranean well, the power generation device being configured to receive hydraulic pressure applied from surface via at least one of the control line and the hydraulic line and to generate electrical power from the applied hydraulic pressure; and an electrically activated valve positioned within the subterranean well, wherein the electrically activated valve is adapted to receive electrical power generated by the power generation device thereby enabling the valve to selectively allow hydraulic pressure to be applied via the hydraulic line to a hydraulically activated downhole tool positioned within the subterranean well for the selective operation of the downhole tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26)
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24. A method of controlling a downhole tool positioned within a subterranean well, the method comprising the steps of:
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applying hydraulic pressure from surface via at least one of a control line and a hydraulic line to a power generation device positioned within the subterranean well, using the power generation device to convert the applied hydraulic pressure into electrical power; and providing the electrical power generated by the power generation device to an electrically activated valve positioned within the subterranean well thereby enabling the valve to selectively allow hydraulic pressure to be applied via the hydraulic line to a hydraulically activated downhole tool positioned within the subterranean well for the selective operation of the downhole tool.
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Specification