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 for use with perforating gun assemblies is presented. The detonator includes a shell including a main explosive load. The shell may include one or more openings. A non-mass explosive body is disposed in the shell, adjacent the main explosive load. The non-mass explosive body includes one or more channels extending therethrough. The detonator includes a plug adjacent the non-mass explosive body, and a PCB adjacent the plug to facilitate electrical communication with the detonator. The plug may include an elongated opening extending therethrough. The channels of the non-mass explosive body, in combination with at least one of the openings of the shell or the elongated openings of the plug, are configured to introduce fluids, such as wellbore fluids, into the non-mass explosive body to disable the detonator.

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.

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 ballistically actuated plug may include an outer carrier having a first end and a second end, a hollow interior chamber within the outer carrier, a ballistic carrier positioned within the hollow interior chamber, an initiator positioned within a bore of the ballistic carrier, and one or more ballistic components. Each of the components may be positioned within a ballistic slot on an outer surface of the ballistic carrier. The initiator and the ballistic component may be relatively positioned for the initiator to initiate the one or more ballistic components. The ballistic component may include an explosive charge for expanding the outer carrier. The ballistic carrier may be formed from a fragmenting or disintegrating material.

Abstract: A system and a method for determining a location of an untethered drone in a wellbore are described herein. The system includes one or more markers to be placed within a wellbore casing where each of the one or more markers is configured to transmit a continuous or periodic signal. The system further includes a first sensor to be transported by the untethered drone where the first sensor is configured to sense an existence of the one or more markers.

Abstract: An electrical connector may include a connector body extending along a longitudinal axis, a first electrical contact provided at a first end of the connector body, a first aperture provided in the first end of the connector body, a bore provided in an interior of the connector body and connected to the first aperture, and a conductive fixed body provided within the bore. The conductive fixed body may include a first contact surface on a first side of the conductive fixed body facing the first electrical contact along the longitudinal axis. A first spring may be provided in the bore between the first contact surface and the first electrical contact, and the first spring may be in contact with the first contact surface and the first electrical contact.

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 adapter assembly may include a tandem seal adapter (TSA) and a collar. The TSA may include a TSA body extending along an axial direction. The collar may include a collar body, a first collar coupling, and a second collar coupling. The collar body may be a substantially annular shape extending in the axial direction. The collar may be outward from the TSA in a radial direction. The first collar coupling and the second collar coupling axially displaced from the first collar coupling may be provided on an interior surface of the collar body. The TSA body and the collar body may overlap in the axial direction. The first collar coupling, second collar coupling, and the TSA may define a first space respectively configured to receive an end of a first housing of a first wellbore tool and an end of a second housing of a second wellbore tool.

Abstract: A system for deploying an untethered drone is provided. The system includes a wellbore drone for being deployed into a wellbore, a magazine unit, and a control system. The wellbore drone is configured to perform at least one action based on a control command which is provided from an on-board control system embedded in the wellbore drone. The magazine unit includes one or more chambers. The magazine unit is configured to retain the wellbore drone in a corresponding one of the one or more chambers, prior to deployment of the wellbore drone into the wellbore, and dispense the wellbore drone for being deployed into the wellbore through a launcher unit. The control system includes at least one control interface for controlling at least a part of operations of the wellbore drone and the magazine unit.

Abstract: A wireline release tool may include a casing configured to couple to a wireline and a connector configured to couple to a tool string. The casing may have a first end, a second end, and a chamber therebetween, and the connector may be detachably attached to the second end of the casing. A gas generator may be disposed in the chamber and may be capable of generating gas pressure in the chamber sufficient to overcome a pressure differential between the chamber and the external wellbore environment and to detach the connector from the casing.

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: Exemplary embodiments of an instantaneously expanding, ballistically actuated wellbore plug and associated systems and methods are disclosed. Exemplary embodiments of an instantaneously expanding, ballistically actuated wellbore plug include, among other things, a ballistic carrier carrying ballistic components and an initiator and housed within a hollow interior chamber of an outer carrier having an unexpanded form and an expanded form. Exemplary embodiments for a method for setting the plug within a wellbore casing include initiating the ballistic components with the initiator and causing the outer carrier to instantaneously transition from the unexpanded form to the expanded form, in which the outer carrier is in frictional, sealing engagement with the wellbore casing.

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: An adapter assembly for use with a wellbore tool string may include a tandem seal adapter (TSA) having a TSA body extending along an axial direction and a collar having a collar body formed in a substantially annular shape and extending in the axial direction. The collar may be provided outward from the TSA in a radial direction substantially perpendicular to the axial direction. The TSA body and the collar body may overlap in the axial direction. The collar may abut the TSA.

Abstract: An orientable perforating gun assembly includes a gun housing and a charge carrier positioned within an interior space of the gun housing. The charge carrier supports a shaped charge in a fixed rotational orientation relative to the gun housing. The orientable perforating gun assembly further includes an orientation alignment ring rotatably connected to a first end of the gun housing.

Abstract: A system for deploying an untethered drone is provided. The system includes a wellbore drone for being deployed into a wellbore, a magazine unit, and a control system. The wellbore drone is configured to perform at least one action based on a control command which is provided from an on-board control system embedded in the wellbore drone. The magazine unit includes one or more chambers. The magazine unit is configured to retain the wellbore drone in a corresponding one of the one or more chambers, prior to deployment of the wellbore drone into the wellbore, and dispense the wellbore drone for being deployed into the wellbore through a launcher unit. The control system includes at least one control interface for controlling at least a part of operations of the wellbore drone and the magazine unit.

Abstract: An orientable perforating gun assembly may include a gun housing with a charge carrier and shaped charge positioned within an interior space of the gun housing, in fixed orientation relative to the gun housing. An orientation alignment ring may be connected to a first end of the gun housing. The orientation alignment ring and the gun housing may be rotatable relative to each other when the orientation alignment ring is in an unfixed connection state. The gun housing may be in a fixed orientation relative to the orientation alignment ring in a fixed connection state. A locking ring may be connected to the gun housing first end. A method may include orienting the perforating gun housing relative to the orientation alignment ring and other perforating gun assemblies in a string.