Abstract: A well abandonment system includes a jet cutter assembly. The jet cutter assembly includes a first sub including a first bulkhead and a jet cutter tool. The jet cutter tool includes a radial shaped charge and a detonator to detonate the radial shaped charge. A first end of the jet cutter tool is connected to the first sub and a second end of the jet cutter tool is connected to the second sub. The jet cutter assembly may include bulkheads that facilitate electrical communication along a length of the jet cutter assembly. A shock absorber is connected to the jet cutter tool in order to mitigate or prevent shock from impacting the jet cutter upon activation of a perforating gun or components of a tool string that is connected to the jet cutter. The shock absorber may include at least one of a sleeve, biasing member, or wireline.

Abstract: A perforating gun assembly includes an exposed perforating gun module. The exposed perforating gun module includes a housing having a first connector end, a second connector end opposite and spaced apart from the first connector end, and a chamber extending along a central axis of the housing between the first and second connector ends. The chamber is configured for receiving a detonator and optionally, a radial booster charge coupled to the detonator. A plurality of sockets extends from an outer surface of the housing towards the chamber. Each socket is configured to receive an encapsulated shaped charge. The encapsulated shaped charges may include a protrusion having an external thread that threadingly engage a complimentary threaded portion of the sockets. The detonator may directly initiate the radial booster charge or the encapsulated shaped charges.

Abstract: A perforating gun housing includes a housing wall extending between a first housing portion defining a chamber, and a second housing portion defining a bore. The housing wall includes a first outer surface, a second outer surface, and a face extending substantially perpendicularly to the second outer surface between the first outer surface and the second outer surface. A perforating gun tool string comprises a first gun housing coupled to a second gun housing, wherein each gun housing includes a housing wall having a first threaded portion and a second threaded portion for attachment to an adjacent gun housing. A method for assembling a wellbore tool string includes providing a first gun housing and a second gun housing, inserting the second end of the first gun housing into the first end of the second gun housing, and rotating the first gun housing relative to the second gun housing.

Abstract: A shaped charge holder includes a body, a cavity formed in the body and extending along a central axis of the body, and a plurality of shaped charge receptacles formed in the body and circumferentially arranged around the central axis. Each shaped charge receptacle is spaced apart from another shaped charge receptacle. Retention mechanisms extend from the body and are configured to retain a shaped charge in a respective shaped charge receiving structure. A plurality of shaped charges, each including a shaped charge case, an explosive load disposed in the case and a liner disposed on top of the explosive load may be positioned in the respective shaped charge receiving structure. The shaped charge holder may be positioned in a housing chamber of a perforating gun housing.

Abstract: Disclosed embodiments relate to weight modules for use in a wellbore tool string. In some embodiments, the weight module may comprise a conductive body, extending in an axial direction, and an insulating cover. The conductive body may be configured to fit within a hollow interior of a weight module housing, and the insulating cover may be configured to electrically isolate the conductive body from the weight module housing. In some embodiments, the conductive body may have a first contact portion, provided at a first end of the conductive body, and a second contact portion, provided at a second end of the conductive body, with the first contact portion in electrical communication with the second contact portion through the conductive body.

Abstract: A perforating gun housing includes a housing wall extending between a first housing portion defining a chamber, and a second housing portion defining a bore. The housing wall includes a first outer surface, a second outer surface, and a face extending substantially perpendicularly to the second outer surface between the first outer surface and the second outer surface. A perforating gun tool string comprises a first gun housing coupled to a second gun housing, wherein each gun housing includes a housing wall having a first threaded portion and a second threaded portion for attachment to an adjacent gun housing. A method for assembling a wellbore tool string includes providing a first gun housing and a second gun housing, inserting the second end of the first gun housing into the first end of the second gun housing, and rotating the first gun housing relative to the second gun housing.

Abstract: A single use setting tool and associated method for actuating a tool in a wellbore may include an inner piston with an annular wall defining a piston cavity. A portion of the inner piston including the piston cavity may be positioned within a central bore of an outer sleeve, and the inner piston and the outer sleeve may be slidable relative to one another. A portion of the inner piston may extend beyond an end of the outer sleeve and have a shock absorbing wedge positioned thereon, and the end of the outer sleeve may have a cutout for receiving the shock absorbing wedge. A bi-directional gas-generating power charge may be positioned in the piston cavity and include a power charge having a booster positioned in an indentation adjacent each of a first end and a second end of the power charge.

Abstract: A single use setting tool and associated method for actuating a tool in a wellbore may include an inner piston having a piston proximal end, a piston distal end, and a piston annular wall that defines a piston cavity. The setting tool may include a gas-generating power charge positioned within the piston cavity. The power charge may extend along a longitudinal axis from a proximal end to a distal end and have at least two different widths along its length. The power charge may further include a tapered portion. The setting tool may further include a piston extension connected to the piston distal end. The inner piston may further include a shear element groove circumferentially extending in an outer surface of the inner piston, for receiving a shear element.

Abstract: A perforating gun module may include a gun housing including a housing chamber and a shaped charge positioning device provided in the housing chamber. The shaped charge positioning device may include a shaped charge holder and a detonator holder provided axially adjacent to the shaped charge holder. The shaped charge positioning device may be a singular and monolithic piece of non-metal material. A perforating gun module string may include a first perforating gun module directly coupled to a second perforating gun module. Each perforating gun module may include a gun housing with a housing chamber, a shaped charge holder provided in the housing chamber, and a detonator holder provided axially adjacent to the shaped charge receptacle. The shaped charge holder and the detonator holder may comprise a singular and monolithic piece of non-metal material.

Abstract: A perforating gun may include a gun carrier extending in an axial direction and a tandem seal adapter (TSA). The gun carrier having a maximum outer carrier diameter. The TSA may include a first TSA region having a first TSA outer diameter, a second TSA region having a second TSA outer diameter, and a shoulder surface formed between an outer surface of the first TSA region and an outer surface of the second TSA region. The second TSA outer diameter may be larger than the first TSA outer diameter and smaller than the maximum outer carrier diameter. A portion of the gun carrier may abut with the shoulder surface.

Abstract: Components for a perforation gun system are provided including combinations of components including a self-centralizing charge holder system and a bottom connector that can double as a spacer. Any number of spacers can be used with any number of holders for any desired specific metric or imperial shot density, phase and length gun system.

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 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 perforating gun assembly may include a first housing extending along a longitudinal axis and a tandem seal adapter (TSA). The first housing may include a coupling provided at a first end of the first housing. The TSA may include a TSA body and a seal element provided on an outer surface of the TSA body. At least part of the TSA may be positioned inside the first housing such that the seal element and the coupling intersect with a common plane that is perpendicular to the longitudinal axis.

Abstract: An autonomous logging drone tool-string including a wiper plug at a downstream end, a logging tool, and a detachable transmitter capsule, and associated methods for cementing a wellbore and logging wellbore information in a single tool-string run downhole. In an aspect, the logging drone tool-string may include a perforating gun and associated methods may include perforating a toe end of the wellbore casing and surrounding cement. In an aspect, the transmitter capsule stores wellbore information from the logging tool. The transmitter capsule may be detached, pumped to the surface, and retrieved for accessing the stored wellbore information.

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: According to some embodiments, devices, systems, and methods for autonomously or semi-autonomously conveying downhole oil and gas wellbore tools and performing downhole oil and gas wellbore operations are disclosed. The exemplary devices, systems, and methods may include an untethered drone that substantially disintegrates and/or dissolves into a proppant when shaped charges that the untethered drone carries are detonated. Two or more untethered drones, wellbore tools, and/or data collection devices may be connected in an untethered drone string and selectively detonated for efficiently performing wellbore operations and reducing the amount of debris left in the wellbore after such operations.

Abstract: A detonator activated wireline release tool is provided for use in geological well operations that enables the wireline cable to be easily released from tool string equipment upon activation of a detonator housed within the release tool. The release tool has a wireline subassembly portion that is connected to a tool string subassembly portion during assembly. It is sometimes necessary to disconnect the wireline subassembly from the tool string subassembly at a time when accessing the either is not physically possible. Such release is achieved by sending an electronic signal that detonates an explosive load which actuates a latch through an expansion chamber. The latch shifts and allows the finger flanges previously connecting the subassemblies to disengage, thus releasing the subassemblies.