Explosive devices may be formed from hollow members filled with explosive materials. The hollow members may be made of mating halves that are packed or loaded with explosive material prior to the mating halves being joined together. In some exemplary aspects, the hollow members are placed in fluid-filled containers such that the explosive reaction creates a wave of fluid that impacts a target. Components of the devices may be COTS items and items that may be manufacture with 3D printers.

Explosive devices may be formed from hollow members filled with explosive materials. The hollow members may be made of mating halves that are packed or loaded with explosive material prior to the mating halves being joined together. In some exemplary aspects, the hollow members are placed in fluid-filled containers such that the explosive reaction creates a wave of fluid that impacts a target. Components of the devices may be COTS items and items that may be manufacture with 3D printers.

A shaped charge closure member for encapsulating a slotted shaped charge is described. The closure member includes a body having a closed upper portion, and a lower portion opposite the upper portion. The closure member has first and second side walls, a front wall, and a back wall. Each wall tapers from the lower portion to the upper portion. A skirt having a substantially rectangular cross-section extends vertically away from each of the walls, at the lower portion of the body. The skirt engages with an open portion of a slotted shaped charge case, thereby forming an encapsulated slotted shaped charge. The encapsulated slotted shaped charge may be used in an exposed perforating gun system.

A booster explosive (10) comprises a canister body 12 within which is a cap well (20) having disposed therein a detonator (24). A protective sleeve (28) encloses the cap well (20) except for that portion of the cap well, the active portion (20d), which encloses the explosive end section (24a) of detonator (24). The protective sleeve serves to attenuate the force of shock waves from nearby prior explosions acting on the detonator (24). An annular air space (32) may be provided between protective sleeve (28) and cap well (20) to further attenuate the force of such shock waves. Attenuation of the shock waves reduces the likelihood of damage to detonators (24) by prior nearby explosions.

A booster explosive (10) comprises a canister body 12 within which is a cap well (20) having disposed therein a detonator (24). A protective sleeve (28) encloses the cap well (20) except for that portion of the cap well, the active portion (20d), which encloses the explosive end section (24a) of detonator (24). The protective sleeve serves to attenuate the force of shock waves from nearby prior explosions acting on the detonator (24). An annular air space (32) may be provided between protective sleeve (28) and cap well (20) to further attenuate the force of such shock waves. Attenuation of the shock waves reduces the likelihood of damage to detonators (24) by prior nearby explosions.

A booster explosive (10) comprises a canister body 12 within which is a cap well (20) having disposed therein a detonator (24). A protective sleeve (28) encloses the cap well (20) except for that portion of the cap well, the active portion (20d), which encloses the explosive end section (24a) of detonator (24). The protective sleeve serves to attenuate the force of shock waves from nearby prior explosions acting on the detonator (24). An annular air space (32) may be provided between protective sleeve (28) and cap well (20) to further attenuate the force of such shock waves. Attenuation of the shock waves reduces the likelihood of damage to detonators (24) by prior nearby explosions.

A booster explosive (10) comprises a canister body 12 within which is a cap well (20) having disposed therein a detonator (24). A protective sleeve (28) encloses the cap well (20) except for that portion of the cap well, the active portion (20d), which encloses the explosive end section (24a) of detonator (24). The protective sleeve serves to attenuate the force of shock waves from nearby prior explosions acting on the detonator (24). An annular air space (32) may be provided between protective sleeve (28) and cap well (20) to further attenuate the force of such shock waves. Attenuation of the shock waves reduces the likelihood of damage to detonators (24) by prior nearby explosions.

A shaped charge closure member for encapsulating a slotted shaped charge is described. The closure member includes a body having a closed upper portion, and a lower portion opposite the upper portion. The closure member has first and second side walls, a front wall, and a back wall. Each wall tapers from the lower portion to the upper portion. A skirt having a substantially rectangular cross-section extends vertically away from each of the walls, at the lower portion of the body. The skirt engages with an open portion of a slotted shaped charge case, thereby forming an encapsulated slotted shaped charge. The encapsulated slotted shaped charge may be used in an exposed perforating gun system.

A fragment-free propulsion of a cartridge-type ammunition, including a propellant casing and a high-pressure chamber, wherein the high-pressure chamber accommodates a propellant powder and, in the bottom region, a primer, having at least one overflow bore. To avoid fragments, a membrane, which separates the high-pressure chamber and a low-pressure chamber from one another and which does not tear to connect the high-pressure chamber to the low-pressure chamber when pressure is built up but instead is bent, is embedded in the high-pressure chamber. For this purpose, the high-pressure chamber additionally has a cap, the membrane, and a body. The membrane is embedded in the body and is secured by the cap. In addition, the membrane covers a gap that is formed by an outer diameter of the cap and an inner diameter of the body, and into which the membrane is bent when pressure is built up.

A fragment-free propulsion of a cartridge-type ammunition, including a propellant casing and a high-pressure chamber, wherein the high-pressure chamber accommodates a propellant powder and, in the bottom region, a primer, having at least one overflow bore. To avoid fragments, a membrane, which separates the high-pressure chamber and a low-pressure chamber from one another and which does not tear to connect the high-pressure chamber to the low-pressure chamber when pressure is built up but instead is bent, is embedded in the high-pressure chamber. For this purpose, the high-pressure chamber additionally has a cap, the membrane, and a body. The membrane is embedded in the body and is secured by the cap. In addition, the membrane covers a gap that is formed by an outer diameter of the cap and an inner diameter of the body, and into which the membrane is bent when pressure is built up.