Abstract: A perforating gun system for tubing conveyed perforation is provided. The perforating gun system includes a gun carrier, at least one free rotation device, a charge tube suspended on the at least one free rotation device, a stationary emitter coupled to the charge tube, and a sensor coupled to an interior surface of the gun carrier. The sensor can be configured to intermittently align with the stationary emitter when the charge tube is orienting independently of the rotation of the gun carrier.

Abstract: A system that includes an automatic cable head that includes a strain gauge configured to measure a tension associated with a cable attached to the automatic cable head, and a release mechanism configured to connect to a tool, and a controller, configured to receive load data from the strain gauge, and control the release mechanism based on the tension measured by the strain gauge.

Abstract: A system that includes an automatic cable head that includes a strain gauge configured to measure a tension associated with a cable attached to the automatic cable head, and a release mechanism configured to connect to a tool, and a controller, configured to receive load data from the strain gauge, and control the release mechanism based on the tension measured by the strain gauge.

Abstract: A perforating gun system for tubing conveyed perforation is provided. The perforating gun system includes a gun carrier, at least one free rotation device, a charge tube suspended on the at least one free rotation device, a stationary emitter coupled to the charge tube, and a sensor coupled to an interior surface of the gun carrier. The sensor can be configured to intermittently align with the stationary emitter when the charge tube is orienting independently of the rotation of the gun carrier.

Abstract: The disclosed embodiments include a perforating gun assembly. The perforating gun assembly includes a housing and at least one perforating charge disposed within the housing. Additionally, the perforating gun assembly includes a detonating cord disposed within the housing and ballistically coupled to the at least one perforating charge. Further, the perforating gun assembly includes a first coupling location and a second coupling location that are each configured to couple to an additional perforating gun assembly. A detonator assembly disposed within the first coupling location is also included in the perforating gun assembly. A detonator of the detonator assembly is positioned to fire in a direction away from the detonating cord disposed within the housing.

Abstract: The disclosed embodiments include a perforating gun assembly. The perforating gun assembly includes a housing and at least one perforating charge disposed within the housing. Additionally, the perforating gun assembly includes a detonating cord disposed within the housing and ballistically coupled to the at least one perforating charge. Further, the perforating gun assembly includes a first coupling location and a second coupling location that are each configured to couple to an additional perforating gun assembly. A detonator assembly disposed within the first coupling location is also included in the perforating gun assembly. A detonator of the detonator assembly is positioned to fire in a direction away from the detonating cord disposed within the housing.

Abstract: A series of small explosive charges are used to preferentially crack the casing of a warhead to provide for a controlled fragmentation of the warhead. During detonation of the warhead's explosive fill, the casing will break early in the process along pre-determined lines resulting in very large fragments that are projected towards the ground and away from innocent civilians. A fragmentation control collar which contacts these charges can be fitted on the outside of existing warheads. An annular liner within the warhead aids in the controlled fragmentation.

Abstract: A series of small explosive charges are used to preferentially crack the casing of a warhead to provide for a controlled fragmentation of the warhead. During detonation of the warhead's explosive fill, the casing will break early in the process along pre-determined lines resulting in very large fragments that are projected towards the ground and away from innocent civilians. A fragmentation control collar which contacts these charges can be fitted on the outside of existing warheads. An annular liner within the warhead aids in the controlled fragmentation.

Abstract: The present invention provides for cutting operations using linear thermite charges; the charges cut one dimensional or two dimensional geometric shapes; the invention is useful for structure entry or demolition.

Abstract: Wall breaching apparatus and methods utilizing shaped charges for penetration of walls of buildings and other structures for rescue, escape, or military operations.