Abstract: An end plate for a perforating gun assembly. The end plate has a first end defining a first face, and a second end opposite the first end defining a second face. A flange resides between the first face and the second face. The end plate has a first through-opening and a second through-opening. A first bulkhead resides in the first through-opening, and is configured to closely receive a signal transmission pin. A second bulkhead resides in the second through-opening and is configured to closely receive a detonator pin. The signal transmission pin transmits detonation signals through the end plate, while the detonator pin transmits detonation signals back up the wellbore and through the end plate. The end plate may also have an opening along the second face for receiving a ground pin.

Abstract: A method of avoiding a frac hit in a hydrocarbon producing field. The method comprises locating a parent wellbore in the hydrocarbon producing field, and then locating a child wellbore in the hydrocarbon producing field. The method also includes running a perforating gun assembly into the child wellbore, wherein the perforating gun assembly comprises a first perforating gun and a second perforating gun, with each defining a gun barrel housing having a first end and an opposing second end. The assembly also includes a tandem sub, with the tandem sub having first and second opposing ends defining a threaded connector, and each end having a side port configured to receive an alignment screw. The method also comprises linearly aligning charges of each of the first and second perforating guns, wherein all charges are aligned in a single direction by rotating one or both of the respective perforating guns relative to the tandem sub.

Abstract: The present disclosure relates to a device and a method for piercing casing for oil wells, gas wells, geothermal wells and water wells. The device of this disclosure comprises a multiple chambered piercing assembly, which separates piercing units without threaded connections between each unit.

Abstract: A detonation system for a perforating gun assembly. The detonation system includes a tandem sub having a first end and a second opposing end. Each of the first and second ends is connected to a respective perforating gun. The tandem sub has an inner bore, and a switch housing residing within the inner bore. The tandem sub also has an addressable switch residing within the switch housing with the switch being configured to receive instruction signals from a surface by means of an electric line. The addressable switch is in communication with a signal transmission pin and a detonator pin. The detonator pin sends a detonation signal from the addressable switch to a detonator in an adjacent perforating gun. The wiring connections for the pins may be pre-assembled before the perforating guns are delivered to the field.

Abstract: A wireline release system may include, but is not limited to: a first housing including an internal body portion defining at least one bore; a second housing operably couplable to the first housing; a wireline tie-off assembly, operably couplable to a wireline cable, disposed at least partially within the bore; an assembly disposed at least partially within the bore; a first mechanical weak point configured to maintain the wireline tie-off assembly at a first position of the bore; and a second mechanical weak point configured to maintain the assembly at a second position of the bore.

Abstract: A detonation system for a perforating gun assembly. The detonation system includes a tandem sub having a first end and a second opposing end. Each of the first and second ends is connected to a respective perforating gun. The tandem sub has an inner bore, and a switch housing residing within the inner bore. The tandem sub also has an addressable switch residing within the switch housing with the switch being configured to receive instruction signals from a surface by means of an electric line. The addressable switch is in communication with a signal transmission pin and a detonator pin. The detonator pin sends a detonation signal from the addressable switch to a detonator in an adjacent perforating gun. The wiring connections for the pins may be pre-assembled before the perforating guns are delivered to the field.

Abstract: An end plate for a perforating gun assembly. The end plate has a first end defining a first face, and a second end opposite the first end defining a second face. A flange resides between the first face and the second face. The end plate has a first through-opening and a second through-opening. A first bulkhead resides in the first through-opening, and is configured to closely receive a signal transmission pin. A second bulkhead resides in the second through-opening and is configured to closely receive a detonator pin. The signal transmission pin transmits detonation signals through the end plate, while the detonator pin transmits detonation signals back up the wellbore and through the end plate. The end plate may also have an opening along the second face for receiving a ground pin.

Abstract: A detonation system for a perforating gun assembly. The detonation system includes a tandem sub having a first end and a second opposing end. Each of the first and second ends connects to a respective perforating gun. The tandem sub has an inner bore, and an electronic switch assembly residing within the inner bore. A contact pin also resides within the inner bore of the tandem sub, with the contact pin having a head that extends into the electronic switch assembly and is configured to transmit instruction signals from the surface. A dart is provided near the first end of the tandem sub, with the dart having a base portion and a tip. The dart resides within an end plate, wherein the base portion has an outer diameter that is greater than an inner conduit of the end plate. The dart is configured to seal against the inner bore of the end plate in response to a pressure wave generated by detonation of charges in an adjacent perforating gun, thereby sealing off the tandem sub.

Abstract: A bulkhead assembly for transmitting current to a downhole tool such as a perforating gun. The bulkhead assembly comprises a tubular bulkhead body having a bore therein. The bulkhead assembly also includes an electrical contact pin. The contact pin comprises a shaft having a first end and a second end. The shaft is fabricated substantially from brass and comprises a plurality of grooves. At the same time, the bore comprises a profile for mating with and receiving the plurality of grooves. This grooved, mating arrangement increases shear strength of the bulkhead assembly. Preferably, a first end of the electrical contact pin is in electrical communication with a wire within a wellbore. The wire transmits electrical signals from an operator at the surface. The shaft comprises a conical portion proximate the first end that frictionally fits into a mating conical profile of the bore. A tandem sub having an improved electrical communication is also provided herein.

Abstract: A bulkhead assembly for transmitting current to a downhole tool such as a perforating gun. The bulkhead assembly comprises a tubular bulkhead body having a bore therein. The bulkhead assembly also includes an electrical contact pin. The contact pin comprises a shaft having a first end and a second end. The shaft is fabricated substantially from brass and comprises a plurality of grooves. At the same time, the bore comprises a profile for mating with and receiving the grooves. This grooved, mating arrangement increases shear strength of the bulkhead assembly. Preferably, a first end of the electrical contact pin is in electrical communication with a wire within a wellbore. The wire transmits electrical signals from an operator at the surface. The shaft comprises a conical portion proximate the first end that fits into a mating conical profile of the bore. A tandem sub having an improved electrical communication is also provided.

Abstract: A method of avoiding a frac hit in a hydrocarbon producing field. The method comprises locating a parent wellbore in the hydrocarbon producing field, and then locating a child wellbore in the hydrocarbon producing field. The method also includes running a perforating gun assembly into the child wellbore, wherein the perforating gun assembly comprises a first perforating gun and a second perforating gun, with each defining a gun barrel housing having a first end and an opposing second end. The assembly also includes a tandem sub, with the tandem sub having first and second opposing ends defining a threaded connector, and each end having a side port configured to receive an alignment screw. The method also comprises linearly aligning charges of each of the first and second perforating guns, wherein all charges are aligned in a single direction by rotating one or both of the respective perforating guns relative to the tandem sub.

Abstract: A perforating gun orienting system. The orienting system comprises a first perforating gun and a second perforating gun, with each defining a gun barrel housing having a first end and an opposing second end. The orienting system also includes a tandem sub, with the tandem sub having first and second opposing ends defining a threaded connector, and each end having a side port configured to receive an alignment screw. A first slot resides at the second end of the first perforating gun, and a second slot resides at the first end of the second perforating gun. The slots are configured to align with the side ports, allowing the operator to access alignment screws within the side ports while aligning charges of the two guns. A method of aligning shots in a perforating gun assembly using the orienting system is also provided.

Abstract: A plier and jaw modifier body for use with a plier. The plier has a pair of opposing jaws. There is a jaw modifier body coupled to each of the opposing jaws via at least one coupler. The coupler can be a screw, bolt, or the like, or it can be a magnet. Each jaw modifier body has at least one working surface to engage a work piece. The jaw modifier body can be coupled and decoupled to the plier jaws to provide customization and versatility to pliers. Various working surfaces can be utilized to hold and manipulate various work pieces.

Abstract: A hydraulic disconnect tool that includes a lug retaining sleeve, the lug retaining sleeve having an upper portion, a base portion and a lower portion. The tool also includes at least one primary prong for engaging at least one primary prong receiver disposed in a latch housing. Furthermore, the hydraulic disconnect tool can includes at least one secondary prong for selectively engaging at least one secondary prong receive disposed in the latch housing when the at least one primary prong fails to properly engage the at least one primary prong receiver and a prop slidably disposed in the lug retaining sleeve, preload sleeve and the latch housing. Fluid can be pumped into and through the hydraulic disconnect tool and the latch housing can be disengaged from the lug retaining sleeve.

Abstract: A detonation system for a perforating gun assembly. The detonation system includes a tandem sub having a first end and a second opposing end. Each of the first and second ends is connected to a respective perforating gun. The tandem sub has an inner bore, and a switch housing residing within the inner bore. The tandem sub also has an addressable switch residing within the switch housing with the switch being configured to receive instruction signals from a surface by means of an electric line. The addressable switch is in communication with a signal transmission pin and a detonator pin. The detonator pin sends a detonation signal from the addressable switch to a detonator in an adjacent perforating gun. The wiring connections for the pins may be pre-assembled before the perforating guns are delivered to the field.