Abstract: A method and apparatus for containing one or more shaped charges in a single plane, arrayed about the center axis of a gun body, and detonated from a single initiator in a shaped charge cluster assembly, having one or more detonator circuits located within a recess within the shaped charge cluster assembly electrically coupled to the single initiator located at the center of the arrayed shaped charges.

Abstract: 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.

Abstract: A method and apparatus for electrically detecting the presence of an initiator in a downhole tool by measuring the resistance of an initiator, electrically isolating the initiator from a power source, supplying current to the initiator less than the current necessary to initiate the initiator, detecting voltage through the initiator, and calculating the resistance of the initiator.

Abstract: A method and apparatus for electrically detecting the presence of an initiator in a downhole tool by measuring the resistance of an initiator, electrically isolating the initiator from a power source, supplying current to the initiator less than the current necessary to initiate the initiator, detecting voltage through the initiator, and calculating the resistance of the initiator.

Abstract: A method and apparatus for controlling a perforating tool string using a perforating unit with a control board and shooting power supply.

Abstract: A method and apparatus for detecting the orientation of each perforating gun in a wellbore and using that information in arming and firing each perforating gun in a perforating gun string.

Abstract: A method and apparatus for using a tandem sub to connect one or more perforating gun assemblies using a rotational bearing mechanism contained within a sleeve lining the inner diameter in both ends to allow the charge tube assembly to rotate within the gun body and protect the tandem sub from damage when firing the shaped charges.

Abstract: A method and apparatus for a perforating gun having a movable detonator holder in a first perforating gun that is positioned inside the carrier such that the detonator is not directly positioned end to end nor side by side with the detonating cord in the loading tube. When a second perforating gun is screwed onto the first perforating gun, the entire charge tube assembly moves, closing the detonator holder further into the carrier such that the detonating holder closes in on the detonating cord until the detonator is adjacent to the detonating cord to connect the detonator to detonating cord ballistic train.

Abstract: A method and apparatus for controlling a perforating tool string using a perforating unit with a control board and shooting power supply.

Abstract: A method and apparatus for controlling a perforating tool string using a perforating unit with a control board and shooting power supply.

Abstract: A method and apparatus for a perforating gun having a movable detonator holder in a first perforating gun that is positioned inside the carrier such that the detonator is not directly positioned end to end nor side by side with the detonating cord in the loading tube. When a second perforating gun is screwed onto the first perforating gun, the entire charge tube assembly moves, closing the detonator holder further into the carrier such that the detonating holder closes in on the detonating cord until the detonator is adjacent to the detonating cord to connect the detonator to detonating cord ballistic train.

Abstract: A method and apparatus for containing one or more shaped charges in a single plane, using a shaped charge housing containing a cluster of one or more shaped charges. The cluster contains with the apex ends facing each other, arrayed about the center axis of a gun body, and detonated from a single initiator located in the middle of the cluster of the one or more shaped charges. The shaped charge housing can be one of many shaped charge housings coupled together to perforate in a plurality of single planes.

Abstract: A method and apparatus for detecting the orientation of each perforating gun in a wellbore and using that information in arming and firing each perforating gun in a perforating gun string.

Abstract: A method and apparatus for providing a universal plug in cartridge detonator capability in box-by-box perforating guns by providing a tandem sub, having a cartridge detonator assembly, that is capable of connecting to a box end of a perforating gun on one side and connecting to a pinned end of a second perforating gun.

Abstract: Using timed or clocked threads to seal a first perforating gun to a second perforating gun that aligns the scallops of both perforating guns in a desired configuration when the threads are fully engaged, such as in at least one example, using a positive stop that resist rotation of the threads beyond a predetermined point of thread engagement.

Abstract: A method and apparatus for attenuating a shaped charge explosive by layering shock attenuation materials in between an internal liner and external shell to form a shaped charge case.

Abstract: A shaped charge target apparatus and method for using a target composed of synthetic material, thereby allowing for repeatable testing at a variety of density and hardness values.

Abstract: A method and apparatus for detonating a power charge in downhole wellbore using a heating element embedded within the energetic material of the power charge.

Abstract: A method and apparatus for providing pulse fracturing of a wellbore using a combination of timing and/or explosive properties to provide a pressure pulse, resulting in the necessary pressure to open artificial fractures.

Abstract: A top connection and sub that provides a reliable electrical connection between a perforating gun and a power charge using a housing with a distal protrusion having a hollow opening adapted to receive a power charge and at least one locking mechanism for locking to the end of a power charge, wherein the first end is adapted to be coupled to a perforating gun and the second end is adapted to couple to a setting tool, and the distal protrusion is adapted to twist and lock to a power charge, a contact assembly comprising a contact housing with a contact rod disposed therein and insulated from the contact housing, a retainer nut containing a feed thru contact pin, slideably disposed within the retainer nut and electrically coupled to the contact rod with a spring, for a more reliable electrically ignited power charges in perforating gun strings.