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US 9,316,088 B2Granted
Downhole contingency apparatus
AssigneeHalliburton Manufacturing and Services Limited
InventorsMichael Adam Reid, Gary Henry Smith
Life of this patent
Estimating the term…
Abstract
A tubing mounted completion assembly that includes at least one downhole valve assembly and at least one contingency device. The contingency device or devices can be associated with and can be separate from the downhole valve assembly. The contingency device or devices can be adapted to operate upon failure of operation of the downhole valve assembly.
Claims24
A tubing mounted completion assembly comprising:
- at least one downhole valve assembly comprising a primary valve actuator, and
- a plurality of contingency devices associated with and separate from the downhole valve assembly, each of the plurality of contingency devices arranged in series in a tubing with the downhole valve assembly, wherein each contingency device is adapted to actuate the downhole valve assembly upon failure of the primary valve actuator to actuate the downhole valve assembly, and at least one of the plurality of contingency devices comprises a mechanically-actuated contingency device and at least one of the plurality of contingency devices comprises a hydraulically-actuated contingency device, the mechanically-actuated contingency device and the hydraulically-actuated contingency device being independently coupled to the downhole valve assembly by respective conduits containing fluid, such that actuation of either the mechanically-actuated contingency device or the hydraulically-actuated contingency device causes displacement of a sealed hydraulic fluid to actuate the downhole valve assembly.
A tubing mounted completion assembly comprising:
- at least one downhole valve assembly, and
- one or more contingency devices associated with and separate from the downhole valve assembly, wherein at least one of the one or more contingency devices is adapted to operate upon failure of the downhole valve assembly, and wherein at least one of the one or more contingency devices is primed for operation upon removal of a downhole tool assembly.
A tubing mounted completion assembly comprising:
- at least one downhole valve assembly comprising a primary valve actuator, and
- a plurality of contingency devices associated with and separate from the downhole valve assembly, each of the plurality of contingency devices arranged in series in a tubing with the downhole valve assembly, wherein each contingency device is adapted to actuate the downhole valve assembly upon failure of the primary valve actuator to actuate the downhole valve assembly, and at least one of the plurality of contingency devices comprises a mechanically-actuated contingency device and at least one of the plurality of contingency devices comprises a hydraulically-actuated contingency device, the mechanically-actuated contingency device comprising:
- a tubular body coupled to the tubing;
- a movable operating sleeve mounted coaxially with the tubular body and defining an annular reservoir containing hydraulic fluid between the operating sleeve and the tubular body, with the annular reservoir being coupled to the conduit coupled to the downhole valve assembly;
- a mechanical coupling device incorporated with the operating sleeve, and operable to engage with a downhole tool conveyed through the completion assembly, such that movement of the downhole tool through the completion assembly causes the operating sleeve to translate through the tubular body;
- and
- a piston member projecting radially into the annular reservoir, which acts to displace the hydraulic fluid to close the downhole valve assembly as the operating sleeve moves in a downhole direction through the tubular body.
4 more elements
A tubing mounted completion assembly comprising:
- at least one downhole valve assembly comprising a primary valve actuator, and
- a plurality of contingency devices associated with and separate from the downhole valve assembly, each of the plurality of contingency devices arranged in series in a tubing with the downhole valve assembly, wherein each contingency device is adapted to actuate the downhole valve assembly upon failure of the primary valve actuator to actuate the downhole valve assembly, and at least one of the plurality of contingency devices comprises a mechanically-actuated contingency device and at least one of the plurality of contingency devices comprises a hydraulically-actuated contingency device, the hydraulically-actuated contingency device comprising:
- a tubular body coupled to the tubing;
- an inlet port in fluid communication with a wellbore annulus region;
- an outlet port in fluid communication with the conduit coupled to the downhole valve assembly;
- and
- an internal actuation mechanism comprising a piston member situated between the inlet port and the outlet port, such that fluid pressure from the wellbore annulus region acts on the piston member to displace hydraulic fluid through the outlet port to close the downhole valve assembly.
4 more elements
Dependencies are inferred from the claim text.