Abstract: An example apparatus includes a rod, an uphole coupling through which the rod extends, an expansion ring positioned on the rod below the uphole coupling, an elastomer element positioned on the rod below the expansion ring, a receptacle positioned on the rod below the elastomer element and configured to receive a portion of the elastomer element, a guardian ring positioned on the rod below the receptacle, and a portion of the receptacle is received in the guardian ring, a cap positioned on the rod and arranged for contact with the guardian ring, and a barrel to which the cap is connected, wherein the rod is partially received in the barrel, and one of the barrel and the rod is movable with respect to the other of the barrel and the rod to exert a compression load on the elastomer element.

Abstract: In one example, a method includes running a downhole system into a downhole environment that comprises a wellbore, and the downhole system is configured such that a reusable plug of the downhole system is positioned uphole of a perforation gun of the downhole system, then, with the perforation gun, perforating a casing at a stage of the wellbore, and the perforating is performed using a projectile, and the perforating is performed by firing the projectile from a chamber of the perforation gun.

Abstract: A dispenser includes a body that defines a chamber and a barrel that communicate with each other, and a penetrator assembly configured to be received in the chamber. The penetrator assembly includes a penetrator, a propellant operably positioned with respect to the penetrator, a primer in operable communication with the propellant, and an electrical conductor configured and arranged to carry electrical power to the primer. The dispenser may be positioned in a downhole location such as a wellbore, and the penetrator assembly may be fired so that the penetrator perforates a casing in the wellbore.

Abstract: In one example, an apparatus includes a TLT (Time of Flight (TOF)/LiDAR tool) with one or more optical transmitters and optical receivers that are operable to cooperate to obtain data concerning a downhole feature when the apparatus is deployed in a downhole environment. This apparatus further includes a first device operable to determine a position, speed, and/or orientation, of the TLT, when the TLT is deployed in the downhole environment, a second device configured to store locally and/or transmit the data to a location on a surface, a power source connected to the TLT, the first device, and the second device, and a housing within which the TLT, first device, second device, and power source are disposed, and the housing includes a connector configured to interface with a piece of downhole equipment.

Abstract: In one example, a downhole system includes a housing configured to be releasably connected to a tether, projectile fire control circuitry disposed within the housing, a block chamber connected to the housing, and the block chamber includes one or more reloadable chambers each configured to be loaded with a respective projectile, and a firing system operable to directly, or indirectly, control the firing of a projectile, in response to a command issued by the projectile fire control circuitry.

Abstract: In one example, a downhole system includes a housing configured to be releasably connected to a tether, projectile fire control circuitry disposed within the housing, a block chamber connected to the housing, and the block chamber includes one or more reloadable chambers each configured to be loaded with a respective projectile, and a firing system operable to directly, or indirectly, control the firing of a projectile, in response to a command issued by the projectile fire control circuitry.

Abstract: A measurement device, including a doppler LiDAR unit that includes an optical transmitter operable to transmit a signal, and which further includes an optical receiver operable to receive a backscatter signal that includes a portion of the signal, and the measurement device also includes a processor operable to determine a doppler shift as between the signal and the backscatter signal, and use the doppler shift to determine a volumetric flow rate of a fluid to which the signal is directed, and from which the backscatter signal is received.

Abstract: In one example, an apparatus includes a TLT (Time of Flight (TOF)/LiDAR tool) with one or more optical transmitters and optical receivers that are operable to cooperate to obtain data concerning a downhole feature when the apparatus is deployed in a downhole environment. This apparatus further includes a first device operable to determine a position, speed, and/or orientation, of the TLT, when the TLT is deployed in the downhole environment, a second device configured to store locally and/or transmit the data to a location on a surface, a power source connected to the TLT, the first device, and the second device, and a housing within which the TLT, first device, second device, and power source are disposed, and the housing includes a connector configured to interface with a piece of downhole equipment.

Abstract: The technology provides apparatus and methods for generating hydrogen without applying electrical energy from an outside source. An exemplary apparatus has an outer housing having an interior divided into an upper portion and a lower portion separated by a septum. The lower portion contains an electrolyte and a composite electrode at least partially immersed in the electrolyte. The electrolyte includes zinc hydroxide dissolved therein. The composite electrode has an aluminum tube enclosing at least one magnet. An outer surface of the electrode housing is at least partially covered with nano-particles held in place by magnetic attraction of the at least one magnet to form the electrode. The magnetically-adherent nano-particles form a second electrode, in direct contact with the first electrode. The generator apparatus has a vent in communication with the upper portion of the interior of the outer housing for removal of generated hydrogen.

Abstract: Cells and methods of producing hydrogen and oxygen from an aqueous solution at about 90% of the Faraday Limit are provided. An exemplary method includes the steps of placing a graphite electrode and a nickel electrode in an alkaline solution comprising colloidal silver, colloidal magnesium and a powdered metal such as aluminum, and applying a constant positive voltage to the nickel electrode. Further, the example includes cyclically applying a negative voltage potential to the graphite electrode by turning on the negative applied voltage for a first time period and switching off the negative voltage for a second time period. The second time period should be sufficient to permit removal of substantially all or at least some of any aluminum or zinc deposited on the graphite electrode. Graphite-containing electrodes may be pretreated to infuse with a precious metal.

Abstract: An electrolytic system for generating hydrogen gas includes a pair of electrodes and an electrolyte. The electrolyte includes colloidal silver, colloidal magnesium, and a nano-metal comprising nano-nickel, nano-iron or a nano-nickel-iron alloy. The electrodes include a first electrode of a non-magnetic material. A second electrode includes an electrode precursor of a magnetic material or an electro-magnet. When in its magnetic state, the electrode precursor exerts a magnetic force of sufficient strength to pull the nano-metal of the electrolyte onto at least a portion of its surfaces, to form the second electrode.

Abstract: The technology provides apparatus and methods for generating hydrogen without applying electrical energy from an outside source. An exemplary apparatus has an outer housing having an interior divided into an upper portion and a lower portion separated by a septum. The lower portion contains an electrolyte and a composite electrode at least partially immersed in the electrolyte. The electrolyte includes zinc hydroxide dissolved therein. The composite electrode has an aluminum tube enclosing at least one magnet. An outer surface of the electrode housing is at least partially covered with nano-particles held in place by magnetic attraction of the at least one magnet to form the electrode. The magnetically-adherent nano-particles form a second electrode, in direct contact with the first electrode. The generator apparatus has a vent in communication with the upper portion of the interior of the outer housing for removal of generated hydrogen.

Abstract: An electrolytic system for generating hydrogen gas includes a pair of electrodes and an electrolyte. The electrolyte includes colloidal silver, colloidal magnesium, and a nano-metal comprising nano-nickel, nano-iron or a nano-nickel-iron alloy. The electrodes include a first electrode of a non-magnetic material. A second electrode includes an electrode precursor of a magnetic material or an electro-magnet. When in its magnetic state, the electrode precursor exerts a magnetic force of sufficient strength to pull the nano-metal of the electrolyte onto at least a portion of its surfaces, to form the second electrode.

Abstract: Cells and methods of producing hydrogen and oxygen from an aqueous solution at about 90% of the Faraday Limit are provided. An exemplary method includes the steps of placing a graphite electrode and a nickel electrode in an alkaline solution comprising colloidal silver, colloidal magnesium and a powdered metal such as aluminum, and applying a constant positive voltage to the nickel electrode. Further, the example includes cyclically applying a negative voltage potential to the graphite electrode by turning on the negative applied voltage for a first time period and switching off the negative voltage for a second time period. The second time period should be sufficient to permit removal of substantially all or at least some of any aluminum or zinc deposited on the graphite electrode. Graphite-containing electrodes may be pretreated to infuse with a precious metal.

Abstract: The invention is to a safety valve for gas cylinders which includes a valve housing 11, a movable valve stem 11a within the valve housing for opening and closing the valve, a restrictor 15 in the valve stem through which gas is dispensed from the gas cylinder, a first shoulder 13 on the valve stem for sealing the gas cylinder when the valve is in a first position, a second shoulder 14 on the valve stem for limiting gas flow from the cylinder through the restrictor when the valve is in a second position, and a reduced section 11d of the valve stem, between said first and second shoulders, through which the gas cylinder is filled when the valve stem is in a position between said first and second positions.

Abstract: The invention is to a safety valve for gas cylinders which includes a valve housing 11, a movable valve stem 11a within the valve housing for opening and closing the valve, a restrictor 15 in the valve stem through which gas is dispensed from the gas cylinder, a first shoulder 13 on the valve stem for sealing the gas cylinder when the valve is in a first position, a second shoulder 14 on the valve stem for limiting gas flow from the cylinder through the restrictor when the valve is in a second position, and a reduced section 11d of the valve stem, between said first and second shoulders, through which the gas cylinder is filled when the valve stem is in a position between said first and second positions.