Setting tool for downhole applications

A self-bleeding well tool comprising:

• a tubular tool body comprising a first inside diameter and a second inside diameter, wherein the second inside diameter is greater than the first inside diameter;
• and
• a shaft mechanically linked to a piston and configured to stroke with the piston from a first position to a second position within the tubular tool body in a first direction, wherein the piston comprises one or more first o-rings about a circumference of the piston;
• and
• a shaft sub,
• wherein the one or more first o-rings form a gas-tight seal with the first inside diameter when the piston is positioned at the first position within the first inside diameter and the one or more first o-rings do not form the gas-tight seal with the second inside diameter when the piston is positioned at the second position within the second inside diameter,
• wherein the shaft slides through the shaft sub when stroking from the first position towards the second position, and wherein one or more second o-rings disposed within the shaft sub form a gas-tight seal between the shaft sub and the shaft, and
• wherein the shaft comprises a fluted section, and wherein an intersection between the fluted section and the shaft sub prevents the one or more second o-rings from forming the gas-tight seal between the shaft sub and the shaft while stroking from the first position to the second position.

A method of deploying a downhole tool within a wellbore, the method comprising:

• activating a non-explosive gas and plasma-generating fuel contained within a chamber of a setting tool operatively connected to the downhole tool;
• directing the non-explosive gas within the chamber to impinge directly on a piston;
• actuating the piston mechanically linked to a shaft to stroke within a tubular tool body;
• and
• mechanically actuating a setting mechanism of the downhole tool with the piston, wherein plasma is blocked from impinging on the piston by a filtering plug.

A well tool comprising:

• a chamber comprising side walls and an activator disposed at a first end of the chamber, wherein the chamber is configured to contain a non-explosive gas and plasma-generating fuel;
• a liner configured to protect the side walls from the plasma of the non-explosive gas and plasma-generating fuel;
• a tool body comprising a cavity configured to receive pressure from the chamber;
• a bleed sub, positioned between the chamber and the tool body, configured to control pressure from the chamber as it is applied to the cavity;
• a piston disposed within the cavity and oriented to stroke in a first direction in response to a pressure increase in the cavity;
• a shaft sub, wherein the shaft slides through the shaft sub in the first direction when stroked, and wherein one or more o-rings disposed within the shaft sub form a gas-tight seal between the shaft sub and the shaft;
• and
• a shaft mechanically connected to the piston and stroking in the first direction with the piston in response to the pressure increase in the cavity, wherein the shaft comprises a fluted section, and wherein the intersection between the fluted section and the shaft sub prevents the one or more o-rings from forming a gas-tight seal between the shaft sub and the shaft,
• wherein the well tool is configured so that pressurizing the chamber by activation of the non-explosive gas and plasma-generating fuel causes the piston and shaft to stroke.

A well tool comprising:

• a chamber comprising side walls and an activator disposed at a first end of the chamber, wherein the chamber is configured to contain a non-explosive gas and plasma-generating fuel;
• a liner configured to protect the side walls from the plasma of the non-explosive gas and plasma-generating fuel;
• a tool body comprising a cavity configured to receive pressure from the chamber;
• a first bleed sub, positioned between the chamber and the tool body, configured to control pressure from the chamber as it is applied to the cavity;
• a piston disposed within the cavity and oriented to stroke in a first direction in response to a pressure increase in the cavity;
• a second bleed sub, disposed between the chamber and the piston, wherein the second bleed sub comprises a carbon-containing disk member configured to protect components of the second bleed sub from gases generated within the chamber;
• and
• a shaft mechanically connected to the piston and stroking in the first direction with the piston in response to the pressure increase in the cavity,
• wherein the well tool is configured so that pressurizing the chamber by activation of the non-explosive gas and plasma-generating fuel causes the piston and shaft to stroke.