Abstract: An apparatus and method for connecting a detonating cord with a shaped charge.

Abstract: A system and apparatus for reducing over penetration of a tubular with a shaped charge.

Abstract: A setting tool for use in setting bridge plugs comprising a piston rod using an improved fastener design to the lower piston to prevent warping of the piston rod when setting.

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

Abstract: A quick connect device for well tools that allows for the connection of two components, such as a setting tool and a plug, without the need for screwing the two components together.

Abstract: A setting tool for use in setting plugs downhole using opposing pistons to axially compress a plug, thereby causing it to radially expand.

Abstract: A downhole explosive detonation comprises a high voltage electro-explosive initiator comprising an input high voltage power supply with a low impedance shunting fuse, a flexible electrical link and a capacitor discharge unit. Explosive is initiated in a direction approximately parallel, or in another version perpendicular to the capacitor discharge unit. A unique configuration and construction of the assembly allows installation through a small service port in the gun housing structure for more efficient gun arming. A real time downhole voltage monitoring is described that transmits voltage readings to the surface during a firing sequence.

Abstract: A box by pin perforating gun system using swaged down gun bodies, a removable cartridge to hold a detonator and switch, and an insulated charge holder as an electrical feed-through.

Abstract: A link jet system using a combination of a one piece cast zinc alloy case and interlocking linked shaped charges for minimizing debris left in a downhole wellbore when fired, reducing components in system, and providing an easy method for changing the shaped charge phase.

Abstract: A box by pin perforating gun system using swaged down gun bodies, a removable cartridge to hold a detonator and switch, and an insulated charge holder as an electrical feed-through.

Abstract: An apparatus and method for specialized shaped charges that perforate similar sized diameter holes regardless of the fluid gaps between the shaped charge and the casing wall.

Abstract: An apparatus and method for locking a detonating cord against a shaped charge.

Abstract: A device for perforating a perforating gun body, while leaving adjacent tubulars unperforated, adapted for situations where it may be desirable to use a perforating gun with a loaded number of shaped charges that is less than its full capacity.

Abstract: A jet cutter apparatus and method for using a single bridge wire or a plurality of bridge wires to uniformly detonate a booster and thereby cause a uniform detonation of the explosives adjacent to the liners, thereby causing a uniform compression of the liners to form a uniform plasma jet that is substantially radially perpendicular to the jet cutter.

Abstract: An apparatus and method for providing a fiber optic cord in a perforating gun.

Abstract: A system and apparatus for reducing over penetration of a tubular with a shaped charge.

Abstract: A jet cutter venting apparatus and method for venting gases generated during deflagration. The venting apparatus and method including vent grooves inside the jet cutter providing a pathway for deflagration gases to escape. The venting apparatus and method also may include using notches or holes placed inside the jet cutter to facilitate the venting of gases during deflagration. The venting of the gases during deflagration facilitates pressure relief within the jet cutter and increases safety from accidental detonation during a fire.

Abstract: An apparatus for restraining the movement of a gun charge holder within a gun tube including a snap ring with an alignment end that engages an end fitting and the gun tube simultaneously, the snap ring further comprising a grounding hole to facilitate the grounding of the electronics and detonation devices within the gun charge holder.

Abstract: A method and apparatus is described for modifying downhole wellbore pressure at the instant that an explosive event occurs. By a significant temporary reduction in wellbore pressure, for example, an explosive cutter will be able to cut through thicker pipe in a deep well with high hydrostatic pressure. A favorable transient wellbore pressure is achieved by the selective timing of implosion and explosion devices, to improve the performance of certain explosive tools when subsequently initiated, such as shaped charge explosive cutters, severing tools, setting tools and perforating guns. As part of the system, each implosion or explosion device is initiated by a detonator having a preprogrammed control unit with a preselected timing delay to take advantage of the temporarily lowered wellbore pressure.

Abstract: An apparatus for restraining the movement of a gun charge holder within a gun tube including a snap ring with an alignment end that engages an end fitting and the gun tube simultaneously, the snap ring further comprising a grounding hole to facilitate the grounding of the electronics and detonation devices within the gun charge holder.