Abstract: The invention is an explosively formed projectile (EFP). On detonation of an explosive charge, an explosively formed projectile is formed from two separate metal elements, an open-poled dished liner and a cavitation pin. The open-poled dished liner is made of a metal more dense than a metal of the cavitation pin. The cavitation pin lies on the open-poled dished liner longitudinal axis and in contact therewith. The cavitation pin has a truncated right conical shape with a base diameter to length ratio of 0.7:1 to 1.5:1. The ratio of the open-poled dished liner diameter:cavitation pin fore portion major base diameter is 2:1 to 4:1. Upon detonation, the cavitation pin leads the explosively forged liner in the explosively formed projectile assembly. The leading pin causes cavitation in water resulting in an increase in the velocity of the explosively formed projectile.

Abstract: A jet cutter venting apparatus and method for venting gases generated during deflagration. The venting apparatus and method including vent grooves inside the jet cutter providing a pathway for deflagration gases to escape. The venting apparatus and method also may include using notches or holes placed inside the jet cutter to facilitate the venting of gases during deflagration. The venting of the gases during deflagration facilitates pressure relief within the jet cutter and increases safety from accidental detonation during a fire.

Abstract: A configurable shape charge liner includes a cone. The cone is hollow and includes a cone bottom portion, which has a cone bottom diameter. The configurable shape charge liner includes at least one circular ring section. Each of at least one circular ring section is hollow and includes a circular ring section top diameter and a circular ring section bottom diameter. The circular ring section top diameter is less than the circular ring section bottom diameter. The cone and at least one circular ring section are connectable therebetween to form different overall diameters for the configurable shape charge liner. The configurable shape charge liner includes a conical shape.

Abstract: In the hemispherical family of axisymmetric circular linear shaped charge liners, this novel swept hemispherical profile shaped explosive device produces a stable jet with the ability to aim the jet by moving the initial explosive impulse ring on the liner surface inward or outward from the pole of the liner profile. The precision of the circular simultaneous initiation of the HE billet is accomplished by the use of a novel Circular Precision Initiation Coupler (CPIC). This CPIC uses a single point initiation to create a simultaneous peripheral detonation of the HE billet that collapses and drives the swept liner into a high speed stretching hollow cylindrical projectile, or more commonly called a jet in the industry.

Abstract: Systems and methods for monitoring a wellbore and actuating a downhole device include a body adapted for insertion into the wellbore that contains a processor, data storage, and sensors that detect a pressure, temperature, and acceleration associated with the body. Computer instructions are usable to receive and store preselected parameters, which include pressure, temperature, and acceleration ranges, and to compare measured values to these ranges for forming a determination usable to initiate actuation of a downhole tool. Additional parameters, such as temporal parameters, can be used to allow, cease, reset, or prevent actuation of the downhole tool.

Abstract: One example of a system includes a reactive material, a nozzle, a liner, and an igniter in a breaching tool suitable for hand-held operation. The nozzle includes at least one exit aperture and is configured to direct a discharge produced by combustion of the reactive material. The liner is disposed around the reactive material and connected to the nozzle. The liner is configured to confine the discharge to the at least one exit aperture. The igniter is disposed within the liner and in contact with the reactive material.

Abstract: By substantially eliminating the crushed zone surrounding a perforation tunnel and expelling debris created upon activation of a shaped charge with first and second successive explosive events, the need for surge flow associated with underbalanced perforating techniques is eliminated. The break down of the rock fabric at the tunnel tip, caused by the near-instantaneous overpressure generated within the tunnel, further creates substantially debris-free tunnels in conditions of limited or no underbalance as well as in conditions of overbalance.

Abstract: A surface blasting product which includes a container, a receptacle which contains adhesive which is displaceable to adhere the container to a rock, and an explosive charge, inside the container, which can be ignited to fragment or displace the rock.

Abstract: An explosive bulk charge, including: a first contact surface configured to be selectively disposed substantially adjacent to a structure or material; a second end surface configured to selectively receive a detonator; and a curvilinear side surface joining the first contact surface and the second end surface. The first contact surface, the second end surface, and the curvilinear side surface form a bi-truncated hemispherical structure. The first contact surface, the second end surface, and the curvilinear side surface are formed from an explosive material. Optionally, the first contact surface and the second end surface each have a substantially circular shape. Optionally, the first contact surface and the second end surface consist of planar structures that are aligned substantially parallel or slightly tilted with respect to one another. The curvilinear side surface has one of a smooth curved geometry, an elliptical geometry, and a parabolic geometry.

Abstract: A liner for a shaped charge is provided for improved penetration of a target formation. The liner is formed from a combination of high density particulate and low density particulate.

Abstract: An apparatus for perforating a subterranean formation may include a casing, an energetic material, a liner, and an acid-generating material. The casing may have a slotted end configured to receive a detonator cord, and an open end. The energetic material may be disposed in the open end and in ballistic. The liner may enclose the open end, and the liner may include an acid-generating material that is configured to form an acid upon detonation of the explosive material.

Abstract: A shaped charge incorporating an amorphous-based material component. The amorphous-based material component may be a liner for the shaped charge to enhance a jet for a perforating application. Other components of the shaped charge and/or perforating gun that accommodates the shaped charge may be of amorphous-based materials. Further, the liner and other components of the shaped charge may be manufactured by way of three dimensional printing. Indeed, a multi-material three dimensional print application may be utilized to form shaped charge components simultaneously along with an entire perforating gun system. Thus, tailored morphology and material gradient characteristics may be readily incorporated into the gun and shaped charge components with a considerable degree of precision.

Abstract: A shaped charge liner comprises a powder, and the powder comprises a blend of particles. The particles comprise a core material, a first reactant material in intimate contact with the core material, and a second reactant material in intimate contact with the first reactant, where the core material has a density greater than 10 grams per cubic centimeter (g/cc).

Abstract: An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner.

Abstract: A die set for forming explosive charge liners from powdered material comprises a die block defining a basin and a punch shaped to interact with the basin. The die block and the punch are configured to exclude powdered material from a center axis of the basin. An apparatus comprises a deep-penetrating explosive charge liner formed of powdered material held together by green strength having a hole in a narrow end of the liner.

Abstract: A perforating system is disclosed having a perforating gun containing a plurality of radially-oriented shaped charges disposed along the longitudinal axis of the gun. Each charge, when detonated, produce a jet whose penetration velocity exceeds the acoustic velocity of the formation (i.e., target) material to be perforated. A method of operating such a perforating system is also provided, as is a shaped charge having the described characteristics.

Abstract: A shaped charge includes a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive comprises an intermetallic mixture comprising boron and a reactant metal. The reactant metal is one selected from the group consisting of Ti, Mg, Zr, Mo, and a combination thereof. A method for perforating in a well includes positioning a perforating gun in the well, wherein the perforating gun includes a shaped charge that includes: a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive includes an intermetallic mixture that contains boron and a reactant metal; and detonating the shaped charge in the well.

Abstract: A precision coaxial water jet disruption explosive device system that holds a blasting cap precisely to the surface of a cylindrically cut positioned plastic explosive that couples a detonation shock wave into water surrounding a hollow forming cavity. A pressure relief vent enables the water filled system to be assembled without deforming the thin walled hollow jet forming cavity, enabling forming repeatable supersonic jets on centerline axis. This system is positioned with two triangular pivot legs and aligned with two fan light beams or a line sight to define a projected jet route to deliver a water jet that can cut through over 1 inch of steel and disrupt target objects more than 9 feet away. This system is used to disable improvised explosive devices, and other dangerous objects, without detonating the targeted explosives and electronic devices such that the contents are destroyed without explosion sequences occurring.

Abstract: 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.

Abstract: An improved test setup facility, referred to as a “Quick Development Cell” (QDC), which allows for rapid turnaround testing with valuable feedback to a design engineer. Because the QDC allows for quick and efficient testing at a sufficient frequency, QDC tests are compatible with production quality control. In addition to fostering improvement of the API's Section 2 type tests using stressed natural rock for benchmark experiments, the QDC tests allow for progress to be made towards the development of a flow-optimized shape charge and superior well performance.

Abstract: Improved liners and explosive devices having improved liners are provided. In accordance with an exemplary embodiment, a liner for an explosive device comprises a plate configured to be positioned against an explosive charge. The plate comprises rhenium, palladium, or a combination thereof, at least a bimodal particle size distribution having a powder grain size no greater than 25 microns, a substantially circular diameter, and a substantially concave interior relative to a surface of the explosive charge.

Abstract: A liner for a shaped charge is provided for improved penetration of a target formation. The liner is formed from a combination of high density particulate and low density particulate.

Abstract: Exemplary multi-shell structured blast effect charges as well as shaped charge or shaped-charge-like explosive charges are disclosed which contain metal carbonyls in the form of pure substances, granulates, mixtures with inorganic fuels, or as granulates of mixtures with inorganic fuels integrated in suitable closed containers. The metal carbonyls serve in the form proposed herein as fuel, which during the intended conversion of the total charge exhibit an undirected (multi-shell structured blast effect charges) or at least partially directed (shaped charges or shaped-charge-like explosive charges) pressure enhancing effect.

Abstract: The present disclosure relates to systems and methods for explosive systems such as grenades with novel micro-electromechanical systems (MEMS) fuze and novel placement of the MEMS fuze providing increased performance, reliability, and safety. The MEMS fuze is disposed towards a rear portion of the explosive system providing superior performance and design flexibility. Further, the explosive system includes electronics configured to implement a launch timer and to sense impact or when the system stops spinning. The present invention includes an operational method improving safety and reliability by preventing detonation until after the launch timer expires, upon impact, or when the explosive system stops spinning.

Abstract: A perforating apparatus according to one or more aspects of the present disclosure comprises a carrier adapted to be deployed in a wellbore; a shaped explosive charge mounted on the carrier, the shaped charge comprising an explosive disposed inside of a case; and a conically shaped liner having an apex and a base disposed with the explosive in the case, the liner comprising an electromagnetically formed portion. The electromagnetically formed portion may comprise a thickness at the apex that is different from a thickness at the base.

Abstract: A surface blasting product which includes a container, a receptacle which contains adhesive which is displaceable to adhere the container to a rock, and an explosive charge, inside the container, which can be ignited to fragment or displace the rock.

Abstract: A method for generating a projectile using an explosive device that can generate a projectile from the opposite side of a wall from the side where the explosive device is detonated. The projectile can be generated without breaching the wall of the structure or container. The device can optionally open an aperture in a solid wall of a structure or a container and form a high-kinetic-energy projectile from the portion of the wall removed to create the aperture.

Abstract: An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner.

Abstract: Solid composite propellants are provided that include a matrix comprising an energetic oxidizer and a binder. A multi-layered reactive thin film is provided in the matrix. The reactive thin film includes metal and inorganic oxidizer. Methods of making the solid composite propellants are also provided.

Abstract: A liner assembly for an explosively formed projectile device may include a reactive material liner and a primary liner configured to form into a projectile responsive to initiation of an explosive material. The reactive material liner may be configured and formulated to increase the velocity of the projectile after formation thereof. An ordnance device for generating an explosively formed projectile may include a case, an explosive material, and a reactive material liner and a primary liner configured, in combination, to form into a projectile. An explosively formed projectile may include a deformed primary liner and a deformed reactive material liner having an ignited portion increasing the velocity of the projectile. Methods of explosively forming a projectile may include explosively expelling a primary liner and a secondary liner and increasing the velocity of the projectile by combusting at least a portion of the secondary liner.

Abstract: A perforator charge includes a case, an explosive inside the case, and a liner to be collapsed by detonation of the explosive to form a perforating jet. The perforator charge also includes an energetic material to be activated in response to the detonation of the explosive.

Abstract: A simple, inexpensive, device and method of use thereof for disrupting the jet of a shaped charge and thereby significantly reducing the penetrating capability by over 90% thereof; thus providing a means to mitigate the damage caused by the premature or accidental jetting of the shaped charge. The device has a central support, along which radiate a plurality of increasing radius, generally hemi-circular, thin discs—such that the outline of the disc edges thereof form a cone that models the interior of the hollow open mouth of the shaped charge—importantly, the discs are staggered along the length of the central support. The device, which can be molded of inexpensive plastic, must be lodged fully within the hollow open mouth of the shaped charge at the time of the premature or accidental jetting—to provide the desired mitigation.

Abstract: 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.

Abstract: A shaped charge liner is provided. The shaped charge liner comprises a first material denser than 10 grams per cubic centimeter (g/cc) and a reactive material. The first material is concentrated in a middle of the liner and decreased in at least one of an apex and a skirt of the liner, and the reactive material is concentrated in at least one of the apex and the skirt of the liner and decreased in the middle of the liner.

Abstract: A method of severing tubular members using an expandable linear explosive shape charge positioner. The method involves placing a plurality of arc-shaped charge chambers along the same plane and adjacent to the interior walls of a tube. Simultaneous detonation of the charge chambers severs the tube along a common plane. The positioner is placed within a tubular member and includes a remotely extendible framework with linear explosive shape charges enclosed therein. When in the collapsed position, the apparatus passes through constrictions within the tubular members. When extended, the framework is positioned transversely to the axis of the tubular member with the shape charges positioned adjacent the interior walls thereof. Shape charge chambers with angled ends are presented to provide overlap when the device is fully extended to better ensure complete separation of the tubular member at the discontinuities of the shape charges about the plane of severance.

Abstract: A shaped charge explosive device is provided having a front, a rear and an axis of symmetry with the device comprising an explosive charge, a liner lining a front of the explosive charge, the liner having a recess in the form of a groove encircling the axis of symmetry; and the groove arranged to provide an axis of projection for the liner at an angle A relative to the axis of symmetry. A method of cutting a structure is provided comprising the steps of providing the foregoing device, detonating the explosive charge to create a detonation wave; forming the liner into an formed projectile in the shape of an annular ring with the detonation wave; directing the formed projectile towards the structure; and forming an annular ring cut pattern in the structure with the formed projectile.

Abstract: A modular explosive breaching and demolition system comprised of inert light weight plastic assemblies, field custom hand packed or pre-loaded, utilizing for example cast-cure or press loaded explosives. The assemblies can be snapped together to make different geometeric shapes or lines as may be desired, for demolition objectives.

Abstract: An expandable linear explosive shape charge positioner for severing tubular members whereby a plurality of arc-shaped charge chambers are positioned along the same plane and adjacent to the interior walls of the tubular members and detonated to sever the tubular members. The invention is placed within a tubular member and includes a remotely extendible framework having remotely detonable linear explosive shape charges enclosed therein. When in the collapsed position, the apparatus passes through constrictions within the tubular members. When extended, the framework is positioned transversely to the axis of the tubular member with the shape charges positioned adjacent the interior walls thereof. Shape charge chambers with angled ends are presented to provide overlap when the device is fully extended to better ensure complete separation of the tubular member at the discontinuities of the shape charges about the plane of severance.

Abstract: 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.

Abstract: A composite material case (19) and liner (21) is described for use in a perforator (17) for completing wells such as oil, gas and water wells (1). The materials selected are intended to exhibit stability during prolonged periods at the raised temperatures and pressures present in a well (1).

Abstract: A method of severing tubular members using an expandable linear explosive shape charge positioner. The method involves placing a plurality of arc-shaped charge chambers along the same plane and adjacent to the interior walls of a tube. Simultaneous detonation of the charge chambers severs the tube along a common plane. The positioner is placed within a tubular member and includes a remotely extendible framework with linear explosive shape charges enclosed therein. When in the collapsed position, the apparatus passes through constrictions within the tubular members. When extended, the framework is positioned transversely to the axis of the tubular member with the shape charges positioned adjacent the interior walls thereof. Shape charge chambers with angled ends are presented to provide overlap when the device is fully extended to better ensure complete separation of the tubular member at the discontinuities of the shape charges about the plane of severance.

Abstract: A radial-linear shaped charge pipe cutter is constructed with the booster explosive packed intimately into a booster aperture that is bored axially through the charge upper end plate. The cutter explosive is initiated at the interface between the upper margin of the cutter explosive and the contiguous inside surface of the upper end plate. This interface is within a critical initiation distance from the half charge juncture plane. In one embodiment, a half charge liner is configured as the assembly of two, coaxial, frusto-cones with the smaller cone diverging from the half charge juncture plane at a smaller angle than the outer cone. In another embodiment, the liner thickness increases from the juncture plane out to the liner perimeter.

Abstract: Embodiments of a reactive shaped charge, a reactive liner, and a method for penetrating a target are generally described herein. The reactive shaped charge comprises a reactive liner having a matrix of reactive metal particles in a hydrocarbon fuel, a high explosive, and an inner barrier separating the reactive liner from the high explosive. The hydrocarbon fuel fills the interstitial spacing between the reactive metal particles, and the matrix is tightly packed or compresses to exhibit a solid like property.

Abstract: An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing, a high explosive, and a reactive liner where the high explosive is positioned between the reactive liner and the housing. The reactive liner is produced from a composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition may be selected from any known formulation which is suitable for use in an oil and gas well perforator, typically the composition will comprise at least one metal and at least one non-metal, wherein the non-metal is selected from a metal oxide, or any non-metal from Group III or Group IV or at least two metals such as to form an intermetallic reaction. Typically at least one of the metals in the invention may be selected from Al, Ce, Li, Mg, Mo, Ni, Nb, Pb, Pd, Ta, Ti, Zn or Zr.

Abstract: A shaped charge includes a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive comprises an intermetallic mixture comprising boron and a reactant metal. The reactant metal is one selected from the group consisting of Ti, Mg, Zr, Mo, and a combination thereof. A method for perforating in a well includes positioning a perforating gun in the well, wherein the perforating gun includes a shaped charge that includes: a casing; a liner located within an opening of the casing; and an explosive located in the region between the casing and the liner, wherein at least one of the liner and the explosive includes an intermetallic mixture that contains boron and a reactant metal; and detonating the shaped charge in the well.

Abstract: A shaped charge has a case defining a volume therein. A liner is located in the volume. An explosive is located between the case and the liner. The liner defines an interior volume and an opening thereto. The liner also has an apex portion that is distal from the opening. The liner has a first thick portion and a second thick portion. A thin portion is located between the first thick portion and the second thick portion in a direction extending from the apex portion along the liner toward the opening. The thin portion is thinner than the first thick portion and thinner than the second thick portion.

Abstract: A perforating apparatus that is usable with a well includes a shaped charge. The shaped charge includes a case, an explosive and a liner. The liner is adapted to form a perforation jet to form a perforation tunnel and promote an exothermic reaction inside the tunnel to create a pressure wave to force debris from the tunnel.

Abstract: A liner for a shaped charge is disclosed which comprises a plurality of portions, where at least one portion is composed of powder materials. In one embodiment, the liner comprises two portions that are composed of different powder materials, while alternative embodiments of the liner comprise three portions or four portions. When the shaped charge is used in a perforating gun, reactive powder materials may be added to the plurality of portions of the liner to optimize the penetration or the enhancement of the perforating tunnel.

Abstract: A linear charge system (100) for applying a destructive explosive charge to a barrier structure; said system comprising a charge carrier (101) and an explosive charge element (120) assembled within said charge carrier (101); said explosive charge element (120) adapted to effect a directed explosive charge for the penetration of a said barrier in which a tamping fluid forms at least a portion of a penetrating agent.

Abstract: Embodiments of a reactive shaped charge, a reactive liner, and a method for penetrating a target are generally described herein. The reactive shaped charge comprises a reactive liner having a matrix of reactive metal particles in a hydrocarbon fuel, a high explosive, and an inner barrier separating the reactive liner from the high explosive. The hydrocarbon fuel fills the interstitial spacing between the reactive metal particles, and the matrix is tightly packed or compresses to exhibit a solid like property.