Abstract: A system for use within a gun housing of a perforating gun may include a centralizer and a detonator holder. The centralizer may include a centralizer body and a centralizer bore extending through the centralizer body. The detonator holder may be disposed within the centralizer bore and may include a first detonator holder end configured to receive a detonator and a second detonator holder end comprising a detonator holder coupling. The detonator holder may extend through the centralizer and may be mechanically coupled to the centralizer. The centralizer may be configured to engage with an inner surface of the gun housing.

Abstract: A detonator includes a detonating capsule, a detonator head storing an electronic circuit board, and a retaining arm configured to fix the detonating capsule to the detonator head. The electronic circuit board is a multidimensional circuit board that extends from the detonator head into engagement with the detonating capsule.

Abstract: An initiator head includes a housing piece defining an interior chamber, a circuit board supported in the interior chamber, a line-in terminal coupled to the circuit board, and insulating material filling the interior chamber and covering a top surface of the circuit board for absorbing shocks or vibrations and electrically insulating electronics of the circuit board.

Abstract: A perforating gun assembly is configured for use in unconventional wells, for example in rock formations with low permeability. The perforating gun assembly includes a perforating gun housing and a shaped charge positioned in the perforating gun housing. The shaped charge and the perforating gun housing are configured to improve total target penetration in unconventional wells by 20-100%.

Abstract: A perforating gun assembly that orients one or more shaped charges within a well includes a housing and an orienting internal assembly configured to be disposed within a longitudinal bore of the housing. The orienting internal assembly may include at least one shaped charge holder or charge tube, a rotation support system, a detonator holder and/or a detonator. The rotation support system may be configured so that the detonator holder and/or detonator rotate together as a whole with the at least one shaped charge holder or charge tube. The rotation support system may include at least one bearing assembly, a plurality of rollers, or combinations thereof. The orienting internal assembly may be configured for gravitational orientation.

Abstract: A tandem seal adapter for connecting first and second wellbore tools includes a body portion. The body portion has a first seal at a first end portion thereof, and a second seal at a second end portion thereof. The body portion includes a maximum outer diameter that is less than a maximum inner diameter of a mating portion of the first or second wellbore tool.

Abstract: An initiator head may include a housing extending in an axial direction, a circuit board provided in an interior space of the housing, a line-in terminal provided on a first side of the housing in the axial direction and accessible from an exterior of the housing, and a fuse displaced from the circuit board in the axial direction. A thickness direction of the circuit board may be substantially parallel with the axial direction. The line-in terminal may be in electrical communication with the circuit board. The fuse may be in electrical communication with the circuit board. The circuit board may be configured to activate the fuse in response to a control signal received at the line-in terminal.

Abstract: A perforating gun and alignment assembly includes a perforating gun housing formed from a singular and monolithic piece of metal material, and an alignment ring rotatably secured to the housing. A shaped charge positioning device is positioned in a chamber of the housing.

Abstract: Disclosed embodiments relate to devices and methods for storage and/or transport of tubular structures, such as perforating guns for use in wellbores. Some embodiments relate to modular storage containers, for example which may be height adjustable depending on the length of the tubular structure to be held therein. Some embodiments relate to mobile storage banks, which may be configured for use with the modular storage containers. In some embodiments, the storage bank may further be configured with one or more longitudinal compartments configured to hold used tool strings or portions thereof.

Abstract: A detonator positioning device for use with a detonator in a perforating gun assembly is described. The detonator positioning device is configured for electrically contactably forming an electrical connection within the perforating gun housing by contact. The detonator positioning device includes a body having a first end, a second end, and a central bore extending between the first and second ends. The central bore is adapted for receiving one or more electrically contactable components of a detonator. The detonator positioning device aligns at least one of the one or more electrically contactable components to form an electrical connection with a bulkhead assembly.

Abstract: A shaped charge orientation system may include a first perforating gun housing having a first hollow interior and a second perforating gun housing having a second hollow interior. A first shaped charge holder may be positioned in the first hollow interior and oriented in a first direction. A second shaped charge holder may be positioned in the second hollow interior and oriented in a second direction different than the first direction. A manual alignment tool may engage with the second perforating gun housing to rotate the second shaped charge holder from the second direction to the first direction. A method of manually aligning the first and second shaped charge holders may include marking an outer surface of the first perforating gun housing with a visual indicator in alignment with the first direction, and orienting the second shaped charge holder into alignment in the first direction using a manual alignment tool.

Abstract: An initiator head includes a housing piece defining an interior chamber, a circuit board supported in the interior chamber, a line-in terminal coupled to the circuit board, and insulating material filling the interior chamber and covering a top surface of the circuit board for absorbing shocks or vibrations and electrically insulating electronics of the circuit board.

Abstract: A single use setting tool for actuating a tool in a wellbore may include an outer sleeve and an inner piston received within a central bore of the outer sleeve. The inner piston may define one or more elongate bores therethrough that are in fluid communication with a cavity of the inner piston and extend axially through a distal end portion of the inner piston. The distal end portion of the inner piston may abut a shoulder of the outer sleeve, for example at a distal end face of the inner piston.

Abstract: A focused output detonator includes a detonator shell including detonator components, and a focuser coupled to the detonator shell. The detonator shell may include a body extending along a central axis of the detonator shell. A first open end is provided at a first end of the body, and a closed end is provided at a second end of the body. A chamber is bounded by the body and the closed end, and the detonator components are housed in the chamber. The focuser is coupled to the closed end of the detonator shell. According to an aspect, the focused output detonator is structured to focus a ballistic output of the focuser along the central axis and away from the detonator shell. According to an aspect, the focuser includes a donor charge. The focuser may include an encapsulated and hydraulically sealed donor charge.

Abstract: A ballistically-safe wellbore tool may include an explosive device, an initiator including an initiating charge, and a bias member. A relative configuration of the explosive device and the initiator may be switchable between a first configuration, in which the initiating charge is at a ballistically safe distance from the explosive device, and a second configuration, in which the initiating charge is within a ballistically operable distance from the explosive device. The bias member is configured to bias the explosive device and the initiator to the first configuration.

Abstract: Disclosed embodiments relate to devices and methods for storage and/or transport of tubular structures, such as perforating guns for use in wellbores. Some embodiments relate to modular storage containers, for example which may be height adjustable depending on the length of the tubular structure to be held therein. Some embodiments relate to mobile storage banks, which may be configured for use with the modular storage containers. In some embodiments, the storage bank may further be configured with one or more longitudinal compartments configured to hold used tool strings or portions thereof.

Abstract: A system for use within a gun housing of a perforating gun may include a centralizer and a detonator holder. The centralizer may include a centralizer body and a centralizer bore extending through the centralizer body. The detonator holder may be disposed within the centralizer bore and may include a first detonator holder end configured to receive a detonator and a second detonator holder end comprising a detonator holder coupling. The detonator holder may extend through the centralizer and may be mechanically coupled to the centralizer. The centralizer may be configured to engage with an inner surface of the gun housing.

Abstract: A perforating gun may include a first housing, a charge holder positioned within the first housing and configured to receive a shaped charge, an initiator, a detonating cord configured to detonate the shaped charge, and a first spring positioned within the first housing. A relative position of the initiator and the detonating cord may be movable between a first position in which the perforating gun is ballistically unarmed and a second position in which the perforating gun is ballistically armed. The first spring may bias the initiator and the detonating cord to the first position.

Abstract: A perforation gun assembly may include a single shaped charge holder, the shaped charge holder having a charge receiving structure and at least one projection extending from the charge receiving structure. A detonation cord and a detonator may be connected to the shaped charge holder. A top connector may be configured for connecting to a first base of the shaped charge holder and a bottom connector may be configured for connecting to a second based of the shaped charge holder. The perforation gun assembly may be positioned within an outer gun carrier of a perforation gun, and a tandem seal adapter may be positioned at least in part within the outer gun carrier.

Abstract: A detonator positioning device for use with a detonator in a perforating gun assembly is described. The detonator positioning device may be configured for electrically contactably forming an electrical connection within the perforating gun housing by contact. The detonator positioning device may include a body having a first end, a second end, and a central bore extending between the first and second ends. The central bore may be adapted for receiving one or more electrically contactable components of a detonator. The detonator positioning device can align at least one of the one or more electrically contactable components to form an electrical connection with a bulkhead assembly.