Abstract

An apparatus and process for fracturing wells is provided. In one example, an apparatus includes an electric liquid monopropellant device including a volume of electric liquid monopropellant and a detonation cord in proximity to the electric liquid monopropellant device to ignite the volume of electric liquid monopropellant upon activation of the detonation cord. The detonation cord is adapted to ignite the electric liquid monopropellant at pressures exceeding 200 psi, and in some examples, exceeding 500 or 1,000 psi. The detonation cord can be wrapped around the electric liquid monopropellant device in a variety of configurations to increase combustion rates and/or shape the event pulse of the combustion

IPC Classes  ?

• E21B 43/26 - Methods for stimulating production by forming crevices or fractures
• E21B 43/263 - Methods for stimulating production by forming crevices or fractures using explosives
• E21B 43/1185 - Ignition systems
• F42D 1/045 - Arrangements for electric ignition

Abstract

The present application discloses a variety of improvements that enhance at least one of the mechanical, chemical/energetic, ballistic, or adhesive properties, of a class of ECPs, regardless of whether said ECPs are in solid phase or gels, singly or in combinations thereof.

IPC Classes  ?

• D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
• D03D 43/00 - Looms with change-boxes
• C06B 45/10 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix the solid solution or matrix containing an organic component the organic component containing a resin
• C06B 25/34 - Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine

Abstract

In one aspect and one example, a liquid fueled pulsed plasma thruster includes an ionic liquid propellant and electrodes disposed to at least partially cause electrolytic decomposition of the ionic liquid propellant. The ionic liquid propellant may include a Hydroxylammonium Nitrate (HAN)-based Green Electric Monopropellant (GEM). Further, the electrodes may be disposed in various orientations within the thruster, including parallel or coaxial orientations. In another example, a dual mode combustion thruster is provided, allowing a thruster to selectively operate either chemically for high thrust or in a pulsed plasma mode for high efficiency.

IPC Classes  ?

• F03H 1/00 - Use of plasma to produce a reactive propulsive thrust
• B64G 1/40 - Arrangements or adaptations of propulsion systems
• F02K 9/60 - Constructional partsDetails not otherwise provided for

Abstract

According to one aspect, an apparatus and method for electrically igniting and throttling pyroelectric propellant, e.g., in a rocket engine, are provided. In one example, an apparatus includes an injector body for supplying an electrically ignitable propellant to a combustion chamber and a opposing electrodes. A first electrode may be included with the injector body and a second electrode positioned relative to the first electrode to cause ignition of the electrically ignitable propellant as the electrically ignitable propellant flows thereby.

IPC Classes  ?

• F02K 9/95 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant thereforControl thereof characterised by starting or ignition means or arrangements

Abstract

The present application discloses a variety of improvements that enhance at least one of the mechanical, chemical/energetic, ballistic, or adhesive properties, of a class of ECPs, regardless of whether said ECPs are in solid phase or gels, singly or in combinations thereof.

IPC Classes  ?

• D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
• D03D 43/00 - Looms with change-boxes
• C06B 45/10 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix the solid solution or matrix containing an organic component the organic component containing a resin

Goods & Services

Reusable explosives; spark generators for explosives

Abstract

A liquid electrically initiated and controlled composition comprising an oxidizer, soluble fuel additive(s), and other optional additives to enhance the chemical or ballistic properties, or a combination thereof is disclosed. The liquid composition further comprises stabilizers to enhance thermal stability, sequestrants to minimize deleterious effects of transition metal contaminants, and combustion enhancers maximizing efficiency. Buffers and heavy metal sequestering or complexing agents may be used in combination to achieve the highest degree of thermal stability. Additional ionic co- oxidizers may be added to the liquid composition to stabilize the liquid oxidizer and further depress freezing point. The liquid phase of matter allows flow via pipes or tubes from tanks, reservoirs, or other containers, through metering valves, followed by ignition or combustion modulation when stimulated by electrodes, statically or dynamically.

IPC Classes  ?

• C06B 31/28 - Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate

Abstract

A liquid electrically initiated and controlled composition comprising an oxidizer, soluble fuel additive(s), and other optional additives to enhance the chemical or ballistic properties, or a combination thereof is disclosed. The liquid composition further comprises stabilizers to enhance thermal stability, sequestrants to minimize deleterious effects of transition metal contaminants, and combustion enhancers maximizing efficiency. Buffers and heavy metal sequestering or complexing agents may be used in combination to achieve the highest degree of thermal stability. Additional ionic co- oxidizers may be added to the liquid composition to stabilize the liquid oxidizer and further depress freezing point. The liquid phase of matter allows flow via pipes or tubes from tanks, reservoirs, or other containers, through metering valves, followed by ignition or combustion modulation when stimulated by electrodes, statically or dynamically.

IPC Classes  ?

• C06B 31/28 - Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
• C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product

Abstract

The present invention is an electrically controlled propellant comprising a binder, an oxidizer, and a cross-linking agent. The boric acid (the cross-linking agent) has been found to function as a cross-linking agent for the high molecular binder used to make the propellant, thereby improving the composition's ability to withstand combustion without melting. The present invention also may include 5-aminotetrazole (5-ATZ) as a stability-enhancing additive. The binder of the present invention may include polyvinylalcohol (PVA) and/or the co-polymer of polyvinylalcohol/polyvinylamine nitrate (PVA/PVAN).

IPC Classes  ?

• C06B 45/04 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix
• C06B 45/10 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix the solid solution or matrix containing an organic component the organic component containing a resin
• C06B 31/00 - Compositions containing an inorganic nitrogen-oxygen salt
• C06B 25/34 - Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
• D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
• D03D 43/00 - Looms with change-boxes

Abstract

A thruster stack assembly and method for manufacturing the same is provided. The thruster stack assembly includes a plurality of grain elements having a common core region (e.g., a channel or passageway), where each grain element comprises a volume of electrically ignitable propellant. The thruster stack assembly further includes electrodes associated with the plurality of grain elements, the electrodes adapted for selectively igniting the plurality of grain elements. In one example, one or more of the grain elements may be ignited and combusted without igniting or damaging adjacent grain elements of the stack. The core region serves to channel combustion gases and exhaust from the thruster stack. Multiple stacks may be assembled together to form three-dimensional thruster arrays.

IPC Classes  ?

• F02K 9/08 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant thereforControl thereof using solid propellants
• C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product

Goods & Services

Scientific research in the field of energetic materials, and preparing related reports and technical documentation; preparing scientific reports in the field of energetic materials; custom design and development of energetic materials and related products, namely, rocket motors, space thrusters, exploding bolts, line cutters, igniters, detonators, pyrotechnics for entertainment, squibs, gas generator cartridges, and oil well pumpable explosives

Abstract

A composition capable of producing either solid propellant grains, liquid or gel monopropellants, all of which are electrically ignitable and capable of sustained controllable combustion at ambient pressure. Additional compositions capable of sustained controllable combustion at elevated pressures are described. Applications for the compositions disclosed herein are provided, and include among other applications use in small micro thrusters, large core-burning solid propellant gains, shaped explosives charges for military application, and pumpable liquids and gel monopropellants or explosives for military, commercial mining or gas and oil recovery. In alternative embodiments the above compositions may also incorporate an energetic nitrate polymer, bum rate modifiers, and/or metal fuel(s). The HIPEP formulation makes it possible to ignite and sustain combustion at ambient and vacuum conditions (a) without continuous electrical power and (b) while providing faster bum rates.

IPC Classes  ?

• C06B 45/10 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix the solid solution or matrix containing an organic component the organic component containing a resin
• C06B 31/28 - Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
• C06B 31/00 - Compositions containing an inorganic nitrogen-oxygen salt
• C06B 23/00 - Compositions characterised by non-explosive or non-thermic constituents
• C06B 47/00 - Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosivesSuspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase

Goods & Services

Scientific research in the field of energetic materials, and preparing related reports and technical documentation; preparing scientific reports in the field of energetic materials; custom design and development of energetic materials and related products, namely, rocket motors, space thrusters, exploding bolts, line cutters, igniters, detonators, pyrotechnics for entertainment, squibs, gas generator cartridges, and oil well pumpable explosives