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US 2006/0075890 A1Published application
Propellant for fracturing wells
AssigneePropellant Fracturing & Stimulation, LLC
InventorJohn Tiernan
Life of this patent
Estimating the term…
Abstract
An apparatus for fracturing wells employs a propellant charge with a metallic foil to rapidly ignite the surface of the propellant charge. The assembly can be covered with an protective coating to protect against fluids in the well bore.
Claims19
An apparatus for fracturing wells comprising:
- a propellant charge for insertion into a well and having at least one surface;
- a metallic foil adjacent to the surface of the propellant charge;
- and
- an ignition element for igniting the metallic foil, and thereby rapidly igniting the surface of the propellant charge.
1 more element
An apparatus for fracturing wells comprising:
- a propellant charge for insertion into a well, said propellant charge being divided longitudinally into a plurality of segments with interior surfaces between adjacent segments;
- a metallic foil between the interior surfaces of the propellant charge;
- and
- an ignition element for igniting the metallic foil, and thereby rapidly igniting the interior surfaces of the propellant charge.
1 more element
An apparatus for fracturing wells comprising:
- a propellant charge for insertion into a well and having an exterior surface;
- a metallic foil covering the exterior surface of the surface of the propellant charge;
- a protective layer covering the metallic foil and propellant charge;
- and
- an ignition element for igniting the metallic foil, and thereby rapidly igniting the surface of the propellant charge.
2 more elements
Dependencies are inferred from the claim text.