Exercising a Well Tool
AssigneeHalliburton Energy Services, Inc.
InventorsJimmie Robert Williamson, James Dan Vick, JR.
Life of this patent
Estimating the term…
Abstract
An exercise tool assembly for operating a downhole tool auxiliary to a primary actuator system of the downhole tool includes a cylinder mandrel configured to be received in the central bore of the downhole tool. A piston mandrel is in and sealed with the cylinder mandrel. The exercise tool assembly is configured to couple to an actuator sleeve of the downhole tool and to couple to the downhole tool at a location apart from the actuator sleeve. The piston mandrel is responsive to a change in pressure in the central bore to translate relative to the cylinder mandrel and translate the coupling with the actuator sleeve relative to the coupling at the location apart from the actuator sleeve.
Claims23
An exercise tool assembly for operating a downhole tool auxiliary to a primary actuator system of the downhole tool, the exercise tool assembly comprising:
- a cylinder mandrel configured to be received in a central bore of the downhole tool;
- and
- a piston mandrel in and sealed with the cylinder mandrel, the exercise tool assembly configured to couple to an actuator sleeve of the downhole tool and to couple to the downhole tool at a location apart from the actuator sleeve, the piston mandrel responsive to a change in pressure in the central bore to translate relative to the cylinder mandrel and translate the coupling with the actuator sleeve relative to the coupling at the location apart from the actuator sleeve, where the piston mandrel is responsive to an increase in pressure to translate from a first position to a second position, and the exercise tool assembly comprises a return spring configured to return the piston mandrel to the first position in response to a decrease in pressure.
(canceled)
A method of operating a downhole tool auxiliary to a primary actuator system of the downhole tool, the method comprising:
- gripping, with an exercise tool assembly, a wall of a central bore of the downhole tool;
- gripping, with the exercise tool assembly, an actuator sleeve of the downhole tool;
- and
- in response to a pressure increase of fluid of the central bore, shifting the actuator sleeve in a first direction to operate the downhole tool;
- and
- in response to a pressure decrease of fluid of the central bore, shifting the actuator sleeve in a second direction to operate the downhole tool.
(canceled)
A well system, comprising:
- a downhole tool in a wellbore, the downhole tool having a signal responsive actuation system for actuating the downhole tool in response to a remotely generated signal and an actuator sleeve for manually actuating the downhole tool;
- and
- an exercise tool assembly received in the downhole tool, the exercise tool assembly gripping the downhole tool at a first location on the actuator sleeve and gripping the downhole tool at a second location apart from the actuator sleeve and responsive to pressure in the downhole tool to translate the first location relative to the second location.
Dependencies are inferred from the claim text.