Shape charge assembly system
AssigneePrime Perforating Systems Limited
InventorsNorman Gerald Lussier, Michael Norman Lussier
Life of this patent
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Abstract
Shaped charge assembly for use as part of a perforating gun, particularly, channel finder gun. The shaped charge assembly includes a charge is configured to produce a jet which is substantially non-circular in cross section (in relation to the axial direction of travel of the jet) in which the assembly includes a base that is relatively rigid with respect to the liner of the assembly.
Claims39
A shaped charge assembly comprising:
- a rigid metal base having a cavity;
- a liner;
- and
- a shaped charge located in the cavity, wherein the charge is in a shape and the liner located such that, upon explosion of the charge, the liner is propelled along an axial direction of thrust in the formation of a jet having a cross sectional shape which is non-circular.
A shaped charge assembly for mounting to a charge holder of an underground perforating gun comprising:
- a rigid base which defines a cavity open at a top end of the base;
- charge material received within the cavity;
- and
- a liner, relatively flexible with respect to the base, mounted at the top end of the cavity to seal the material within the cavity;
- and wherein,
- interior surfaces of the base and the liner together define the shape of the charge material, which shape is such that, upon detonation, a jet with a non-circular cross-section travels along a major axis through the open end of the cavity of the base.
A method for perforating a casing of a well bore and a surrounding hydrocarbon-bearing formation, comprising:
- locating at least one shaped charge assembly in the bore, the assembly having a relatively rigid base, a shaped charge in a cavity of the base, and a relatively flexible liner;
- and
- exploding the charge, wherein the charge is shaped and oriented within the bore, to produce upon explosion thereof, a jet having an axial direction of thrust in a plane generally orthogonal to the bore and wherein the cross sectional shape of the jet is non-circular.
A method for perforating a casing of a bore of a well and a surrounding hydrocarbon-bearing formation, comprising:
- locating at least one shaped charge assembly in the bore;
- and
- exploding the charge, wherein, the shaped charge assembly comprises:
- a relatively rigid base having a cavity;
- a relatively flexible liner;
- and
- a shaped charge located in the cavity, wherein the charge is in a shape and the liner located such that, upon explosion of the charge, the liner is propelled along an axial direction of thrust, located in a plane generally orthogonal to the bore, in the formation of a jet having a cross sectional shape which is non-circular.
Dependencies are inferred from the claim text.