Packer Setting Device for High Hydrostatic Applications
AssigneeBaker Hughes Incorporated
InventorsSean L. Gaudette, James C. Doane, Robert S. O'Brien
Life of this patent
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Abstract
A packer setting device provides a buffered setting mechanism as a substantially incompressible fluid is selectively flowed into a compressible fluid chamber to compress a compressible fluid. This fluid transfer causes movement of a setting sleeve so that an s associated packer device is set within a wellbore.
Claims23
1-24. (canceled)
A method of actuating a well tool within a wellbore having an annulus, the method comprising the steps of:
- operably associating a well tool actuator with a downhole well tool, the well tool actuator having a setting member with movement responsive to hydrostatic pressure;
- flowing wellbore fluid from the annulus into the well tool actuator under hydrostatic pressure;
- opening a flow restrictive path within the well tool actuator;
- flowing a substantially incompressible fluid into a compressible fluid chamber within the well tool actuator along the flow restrictive path under impetus of the wellbore fluid;
- and
- wherein flowing the substantially incompressible fluid into the compressible fluid chamber causes the setting member to move and actuate the well tool.
A method of actuating a well tool within a wellbore, the method comprising the steps of:
- operably associating a well tool actuator with a downhole well tool, the well tool actuator having a setting member with movement responsive to hydrostatic pressure;
- opening a flow restrictive path within the well tool actuator;
- and
- metering a substantially incompressible fluid into a compressible fluid chamber within the well tool actuator along the flow restrictive path to move the setting member while precluding premature setting of the associated well tool.
A method of actuating a well tool within a wellbore having an annulus, the method comprising the steps of:
- operably associating a well tool actuator with a downhole well tool, the well tool actuator having a setting member with movement responsive to hydrostatic pressure;
- flowing wellbore fluid from the annulus into the well tool actuator under hydrostatic pressure;
- opening a flow restrictive path within the well tool actuator, the flow restrictive path having a plurality of small flow area passages;
- flowing a substantially incompressible fluid into a compressible fluid chamber within the well tool actuator along the flow restrictive path under impetus of the wellbore fluid to preclude premature setting of the associated well tool;
- and
- wherein flowing the substantially incompressible fluid into the compressible fluid chamber causes the setting member to move and actuate the well tool.
Dependencies are inferred from the claim text.