A breaching device includes a body having a tamping material. The body has a target surface that is configured to face a target to be breached and a backing surface that is opposite the target surface. The tamping material is formed of gel and is configured to reflect an explosive force directed way from the target surface towards the target surface.

A breaching device includes a body having a tamping material. The body has a target surface that is configured to face a target to be breached and a backing surface that is opposite the target surface. The tamping material is formed of gel and is configured to reflect an explosive force directed way from the target surface towards the target surface.

A perforation gun that includes a monolithic bulkhead electrical contact that includes no resilient members but that is resiliently coupled to two perforating guns. The bulkhead electrical contact is configured to transmit a signal across a bulkhead from one gun to another gun.

A tandem sub for a perforating gun system includes a tubular housing including a longitudinal first end, a longitudinal second end opposite the first end, a central passage defined by an inner surface, an electrical pass-thru assembly including an electrically conductive signal bar having a longitudinal first end defining a first electrical contact of the tandem sub, and a longitudinal second end opposite the first end and defining a second electrical contact of the tandem sub that is longitudinally opposite and electrically connected to the first electrical contact, wherein the signal bar is rigid along the entire longitudinal length thereof extending from the first end to the second end, and wherein the signal bar is coupled to the housing and a central axis of the central passage of the housing intersects the signal bar.

A method and apparatus for using a tandem sub to connect one or more perforating gun assemblies, having a rotational bearing mechanism lining the inner diameter in both ends to allow the charge tube assembly to rotate within the gun body.

A method and apparatus for using a tandem sub to connect one or more perforating gun assemblies, having a rotational bearing mechanism lining the inner diameter in both ends to allow the charge tube assembly to rotate within the gun body.

A method and apparatus for providing a universal plug in cartridge detonator capability in box-by-box perforating guns.

A solar-powered fire tower structure has an array of solar panels positioned to provide power to the tower, one or more cameras to receive power from the solar panels, and a communications link to provide communication from the fire tower. A fire-retardant projectile has a casing of having a standardized size, a payload of a fire-retardant material, and a firing mechanism to propel the projectile out of a barrel.

A solar-powered fire tower structure has an array of solar panels positioned to provide power to the tower, one or more cameras to receive power from the solar panels, and a communications link to provide communication from the fire tower. A fire-retardant projectile has a casing of having a standardized size, a payload of a fire-retardant material, and a firing mechanism to propel the projectile out of a barrel.

A system for a self-ignitable secondary igniter. The system includes an outer wall extending for a length. The outer wall has a first end and a second end, and the outer wall is filled with a charge. The first end has a centralized-contact spring which is in contact with the outer wall. The centralized-contact spring has a recess and at least one leaf which contacts the outer wall. The system can further include an igniter coupled to the recess of the centralized-contact spring.