A liner (18) for a shaped-charge (10) that is compressively formed from a mixture of powdered metal, powdered metal binder, and a selected quantity of nanoparticle material, is used to achieve improved penetration depths during perforation of a wellbore. Exemplary nanoparticles include lead, tin, copper, molybdenum, etc. Such nanoparticles increase the density, sound speed, or acoustic impedance of the liner. In another embodiment, the added nanoparticles comprise reactive materials which, after penetration into the formation, cause secondary reactions in the perforations.

A shaped charge for use in a well perforating tool includes at least one explosive component fabricated by an additive manufacturing process such as three-dimensional printing. The additive manufacturing process may facilitate the production of complex geometries including voids and/or density gradients in the explosive materials that, when detonated, produce a specific penetration effect in a wellbore. The explosive materials may be deposited individually as a pellet, or may be deposited on one or both of a case and a liner acting as a scaffold during the additive manufacturing process.

A shaped charge for use in a well perforating tool includes at least one explosive component fabricated by an additive manufacturing process such as three-dimensional printing. The additive manufacturing process may facilitate the production of complex geometries including voids and/or density gradients in the explosive materials that, when detonated, produce a specific penetration effect in a wellbore. The explosive materials may be deposited individually as a pellet, or may be deposited on one or both of a case and a liner acting as a scaffold during the additive manufacturing process.

A compact energetic-breaching apparatus is provided. The compact energetic-breaching apparatus is configured to receive energetic materials for use in energetic breaching. The compact energetic-breaching apparatus may comprise a housing body with a receptacle to receive energetic materials. The compact energetic-breaching apparatus may further comprise a tamping material. The compact energetic-breaching apparatus may further comprise a metal liner which collapses upon detonation to form a cutting jet.

Shaped charge devices, systems, and related methods of use. A housing sheet is configurable to form at least part of a shaped charge enclosure enclosing a shaped charge and biasing an explosion in a desired direction. The housing sheet can include one or more incisions in at least one surface thereof. The housing sheet can have at least one connection mechanism integrally formed therein, and the housing sheet can be configurable to form a plurality of sizes of shaped charge housing portions. The housing sheet can also provide for forming a plurality of dimensions of the shaped charge enclosure.

Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.

Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.

A shaped charge retainer ring for use in containing the liner of a shaped charge and the explosive material.

A shaped charge retainer ring for use in containing the liner of a shaped charge and the explosive material.

The invention relates to a process for forming a pre-defined recess in a cured or cast explosive composition comprising the steps of: i) providing a female mould, ii) providing a male former, and locating said male former proximate to the female mould to create a gap between said male former and female mould, iii) forming an admixture of a curable/castable explosive composition, charging the gap with the admixture of explosive composition, causing the cure or cast of said curable/castable explosive composition, removing the male former to furnish a cured or cast explosive composition with a pre-defined recess.