Self-bleeding setting tool and method
AssigneeGeodynamics, Inc.
InventorsWayne Rosenthal, Jeremy Eli Castaneda, Kevin George
Life of this patent
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Abstract
A setting tool for setting an auxiliary tool in a well includes a housing having a floating piston that separates a pressure chamber from a hydraulic chamber; and a plug that is removably located in a through passage of the floating piston. The through passage fluidly connects the pressure chamber to the hydraulic chamber, and the plug prevents a fluid to move from the pressure chamber to the hydraulic chamber or from the hydraulic chamber to the pressure chamber when attached to the floating piston.
Claims31
A setting tool for setting an auxiliary tool in a well, the setting tool comprising:
- a housing having a floating piston that separates a pressure chamber from a hydraulic chamber;
- and
- a plug that is removably located in a through passage of the floating piston,
- wherein the through passage fluidly connects the pressure chamber to the hydraulic chamber, and
- wherein the plug prevents a fluid to move from the pressure chamber to the hydraulic chamber or from the hydraulic chamber to the pressure chamber when attached to the floating piston.
A method for bleeding off a pressurized gas from a setting tool while the setting tool is located in a well, the method comprising:
- lowering the setting tool into the well;
- actuating the setting tool with the pressurized gas;
- moving a floating piston inside a housing of the setting tool, wherein the floating piston separates a pressure chamber from an hydraulic chamber, the pressure chamber housing the pressurized gas;
- removing a plug that is removably located in a through passage of the floating piston;
- and
- bleeding off the pressurized gas from the setting tool to an inside of the well.
A downhole tool for setting an auxiliary tool, the downhole tool comprising:
- a floating piston having a through passage;
- a plug that blocks the through passage and the plug is removably attached to the floating piston;
- and
- a brace rod having an upstream arm having an external diameter equal to or smaller than an external diameter of a portion of the plug that contacts the upstream arm.
Dependencies are inferred from the claim text.