| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Method and Apparatus for Stimulating Wells with Propellants | US13103766 | 2011-05-09 | US20110240183A1 | 2011-10-06 | Dale B. Seekford |
| The present invention relates to apparatus and methods to stimulate subterranean production and injection wells, such as oil and gas wells, utilizing rocket propellants. Rapid production of high-pressure gas from controlled combustion of a propellant, during initial ignition and subsequent combustion, together with proper positioning of the energy source in relation to geologic formations, can be used to establish and maintain increased formation porosity and flow conditions with respect to the pay zone. | ||||||
| 82 | EXPLOSIVE PART WITH SELECTABLE INITIATION | US13060962 | 2009-08-18 | US20110203475A1 | 2011-08-25 | Christer Thuman |
| The invention is characterized in that the a explosive part (1) comprises two initiation devices (7) arranged on each end face (5) with connections to an inner explosive charge (2), the two initiation devices (7) being arranged for optional initiation of the inner explosive charge (2), with or without an ignition delay. At, and in that the diameter di of the inner explosive charge (2), the thicknesses ti, ty of the two insulating layers (8, 9) and thickness is of air gap (10) are chosen such that energy from two colliding detonation fronts along the common centre axis A-A is required in order for the initiation to lead to detonation of the outer explosive charge (3). The invention also relates to a method for the above. | ||||||
| 83 | Perforating system comprising an energetic material | US11789310 | 2007-04-24 | US20080034951A1 | 2008-02-14 | Randy Evans; Freeman Hill; Avigdor Hetz; Jeffrey Honekamp |
| A perforating system, including a shaped charge assembly comprising a charge case, a liner, and a main body of explosive. The material of the perforating system components, including the gun body, the charge case and the liner may be comprised of an energetic material that conflagrates upon detonation of the shaped charge. The material may be an oxidizer, tungsten, cement particles, rubber compounds, compound fibers, KEVLAR®, steel, steel alloys, zinc, and combinations thereof. | ||||||
| 84 | Method and apparatus for stimulating wells with propellants | US11359072 | 2006-02-22 | US20060185898A1 | 2006-08-24 | Dale Seekford |
| The present invention relates to apparatus and methods to stimulate subterranean production and injection wells, such as oil and gas wells, utilizing rocket propellants. Rapid production of high-pressure gas from controlled combustion of a propellant, during initial ignition and subsequent combustion, together with proper positioning of the energy source in relation to geologic formations, can be used to establish and maintain increased formation porosity and flow conditions with respect to the pay zone. | ||||||
| 85 | Micro gas generator | US11266992 | 2005-11-04 | US20060097506A1 | 2006-05-11 | Bruce Stevens |
| A gas generator (10) is provided, comprising an initiator (48) including an initiator charge, a gas generant insert (52) spaced apart from the initiator (48), and a fluid-impermeable blast director (42) interposed between the initiator (48) and the gas generant insert (52). The blast director (42) provides a barrier between the gas generant insert (52) and a blast resulting from ignition of the initiator charge when the initiator charge is ignited. The blast director (42), when used with particular gas generant configurations, reduces the effects of the initiator blast and reduces the amount of gas generant exposed to the blast, enabling the structural integrity of the gas generant (52) to be maintained. | ||||||
| 86 | Method and apparatus for controlled small-charge blasting by pressurization of the bottom of a drill hole | US238231 | 1999-01-22 | US6148730A | 2000-11-21 | John David Watson |
| Rock and other hard materials, such as concrete, are fragmented by a controlled small-charge blasting process. A cartridge containing an explosive charge is inserted at the bottom of a hole drilled in the rock. The explosive charge is configured to provide the desired pressure in the hole bottom, including, if desired, a strong shock spike at the hole bottom to enhance microfracturing. The cartridge is held in place or stemmed by a massive stemming bar of high-strength material such as steel which blocks the flow of gas up the drill hole except for a small leak path between the stemming bar and the drill hole walls. The cartridge incorporates additional internal volume designed to control the application of pressure in the bottom hole volume by the detonating explosive. | ||||||
| 87 | Hollow charge construction and range spacer therefor | US883594 | 1978-03-06 | US4201135A | 1980-05-06 | Peter Nikowitsch |
| A hollow charge construction comprises a housing which has an interior chamber with an explosive material in the chamber which is covered on at least one side by a hollow charge liner. A range spacer for the hollow charge extends ahead of the charge and serves to time its firing and/or detonation setting at a specified range ahead of the target, and it comprises a material which is destructible by impact dispersion to piece parts. | ||||||
| 88 | Blasting method and device | US779658 | 1977-03-21 | US4109575A | 1978-08-29 | Hiroshi Hashimoto |
| Blasting devices, each comprising an explosive substance, a deflector, and a casing containing an incompressible fluid, the explosive substance, and the deflector are inserted into respective holes bored in a rock or the like at spaced apart positions, a tamper being thereafter stuffed in each hole, and the explosive substances in the holes are detonated simultaneously. A shock wave or blast wave is thus created in the incompressible fluid in each hole, and is deflected by the deflector in a direction along which the rock or the like is to be fractured. An improved construction of the blasting device for practicing the method is also provided. | ||||||
| 89 | Weight controlled seismographic combustion deflection | US51914644 | 1944-01-21 | US2507230A | 1950-05-09 | ROSS STINNETT WILLIAM |
| 90 | Radial conduit cutting system | US15590667 | 2017-05-09 | US10138696B2 | 2018-11-27 | Richard F. Tallini; Todd J. Watkins |
| What is presented is a high power igniter comprising an igniter housing adapted to be positioned in a conduit. The igniter housing comprises a containment sub and a nozzle sub that releasably secure to each other. A high wattage heater located in the igniter housing comprises a combustible pellet insertable into the igniter housing for creating a flow of heated gas when the combustible pellet is ignited with a pellet igniting device while the high power igniter is in use. The high power igniter is free from a loose powdered form of combustible material when the combustible pellet is in the igniter housing. The nozzle sub directs the flow of heated gas in the system. | ||||||
| 91 | Explosive booster | US15501661 | 2015-08-06 | US10048047B2 | 2018-08-14 | Albert Petrus Van Niekerk; Adriaan Johannes Goosen |
| An explosive booster shaped to fit into a blasthole adjacent a main explosive charge is provided. The booster comprises a body containing a charge of an explosive substance with a passage extending inwardly of the body to receive a detonator therein. The booster is configured to alter the shape of a detonation wave generated upon initiation of the detonator. In an embodiment, the booster includes a first and a second explosive substance, with the first explosive substance being shaped and selected to cause an outer portion of the detonation wave to accelerate relative to the remainder of the wave thereby altering the shape of the wave from a generally spherical wave to a generally planar wave. In an embodiment, the booster includes an internal member capable of altering the shape of the detonation wave. | ||||||
| 92 | Apparatus and methods for shaped charge tubing cutters | US14703662 | 2015-05-04 | US10047591B2 | 2018-08-14 | William T. Bell; James G. Rairigh |
| A shaped charge pipe cutter is constructed with the cutter explosive material packed intimately around an axially elongated void space that is continued through a heavy wall boss portion of the upper thrust disc. The boss wall is continued to within a critical initiation distance of a half-cuter junction plane. An explosive detonator is positioned along the void space axis proximate of the outer plane of the upper thrust disc. Geometric configurations of the charge thrust disc and end-plate concentrate the detonation energy at the critical initiation zone. | ||||||
| 93 | Method and device for controlling the power type and power emission of a warhead | US15225475 | 2016-08-01 | US09903692B2 | 2018-02-27 | Werner Arnold |
| An initiation device and method allowing power output to be switched between blast generation and splinter generation. The device and method include a cylindrical warhead with a cylindrical, central explosive charge and a tubular perforated mask surrounding the explosive charge, and also with at least two ignition devices, the first ignition device arranged in a region of one of the head sides of the cylindrical charge, and the second ignition device arranged in a region around a center of a longitudinal axis of the warhead, and having a splinter-generating casing surrounding the perforated mask. | ||||||
| 94 | Radial Conduit Cutting System | US15590667 | 2017-05-09 | US20170241227A1 | 2017-08-24 | Richard F. Tallini; Todd J. Watkins |
| What is presented is a high power igniter comprising an igniter housing adapted to be positioned in a conduit. The igniter housing comprises a containment sub and a nozzle sub that releasably secure to each other. A high wattage heater located in the igniter housing comprises a combustible pellet insertable into the igniter housing for creating a flow of heated gas when the combustible pellet is ignited with a pellet igniting device while the high power igniter is in use. The high power igniter is free from a loose powdered form of combustible material when the combustible pellet is in the igniter housing. The nozzle sub directs the flow of heated gas in the system. | ||||||
| 95 | EXPLOSIVE BOOSTER | US15501661 | 2015-08-06 | US20170227340A1 | 2017-08-10 | Albert Petrus VAN NIEKERK; Adriaan Johannes GOOSEN |
| An explosive booster shaped to fit into a blasthole adjacent a main explosive charge is provided. The booster comprises a body containing a charge of an explosive substance with a passage extending inwardly of the body to receive a detonator therein. The booster is configured to alter the shape of a detonation wave generated upon initiation of the detonator. In an embodiment, the booster includes a first and a second explosive substance, with the first explosive substance being shaped and selected to cause an outer portion of the detonation wave to accelerate relative to the remainder of the wave thereby altering the shape of the wave from a generally spherical wave to a generally planar wave. In an embodiment, the booster includes an internal member capable of altering the shape of the detonation wave. | ||||||
| 96 | Dissolvable material application in perforating | US14174528 | 2014-02-06 | US09671201B2 | 2017-06-06 | Manuel P. Marya; Wenbo Yang; Lawrence A. Behrmann; Steven W. Henderson; Robert Ference |
| A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid. | ||||||
| 97 | Oil shaped charge for deeper penetration | US14685777 | 2015-04-14 | US09470483B1 | 2016-10-18 | Zeping Wang |
| An oil shaped charge for deeper penetration includes a case, a quantity of explosive material, and a liner. The case is designed with different inner surface sections, where the step inner surface section creates maximum space for the explosive material so that the explosive material can be effectively placed between the case and the liner. A step conical region of the liner, a step conical inner surface of the case, and an effective placement of the explosive material are able to achieve significantly higher speeds for liner materials flow into the jet, thus creating deeper penetration. | ||||||
| 98 | Device for Controllable Pressure Relief of a Weapon | US14921946 | 2015-10-23 | US20160116261A1 | 2016-04-28 | Markus GRASWALD; Herbert SCHALK |
| The invention relates to a device on the ignition device of a weapon, which can be triggered, for pressure relief, before or simultaneously with the initiation of the deflagrative reaction of the explosive charge, and has at least one channel that can be opened in a controlled manner and connects the interior of the weapon with the external surroundings of the weapon. | ||||||
| 99 | Explosives | US13320908 | 2010-06-14 | US09322624B2 | 2016-04-26 | Sidney Alford; Roland Alford |
| A liquid-jacketed disrupter comprising a container (101) for receiving liquid and housing a receptacle (120) for explosive material, in which the container comprises one or more indentations (115) which result in the generation of liquid jets upon detonation. | ||||||
| 100 | SHAPED CHARGE INCLUDING STRUCTURES AND COMPOSITIONS HAVING LOWER EXPLOSIVE CHARGE TO LINER MASS RATIO | US14584426 | 2014-12-29 | US20150323294A1 | 2015-11-12 | Eric Scheid; Kevin Hovden; Michael Murphy |
| An improved shaped charge apparatus and method of manufacturing is provided including a composite wave shaper, a main charge, and a metal liner. An exemplary embodiment's wave shaper can be adapted to manipulate a shock front so that an interaction of the main charge and the metal liner occurs lower along the liner's profile such that the apparatus restricts an initial elongation of a resulting jet. An embodiment can have a thickness of the metal liner sufficient to provide a mass necessary to generate a first size diameter aperture in a target material. An embodiment an also provide a combination of the liner thickness and shock interaction point resulting in the jet having an improved length to diameter ratio among other advantages. An embodiment of the invention can also provide other advantages such as an explosive to mass ratio of less than 3 or 2 to 1. | ||||||
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