Linear Or Curvilinear Cavity Patents (Class 102/307)
  • Patent number: 10422204
    Abstract: A system and method for stimulating hydrocarbon production from a wellbore that perforates the formation around the wellbore in strategic locations so that fractures can be formed in the formation having specific orientations. The system includes deep penetration perforators that extend past a portion of the formation adjacent the wellbore having locally high internal stresses (a stress cage); and big hole perforators that form perforations with a larger entrance diameter. The perforators form perforations in the formation that are axially consolidated along the wellbore. After perforating, the wellbore is hydraulically fractured with high pressure fluid, which creates fractures in a formation surrounding the wellbore that extend radially outward from the perforations. Creating perforations that are axially consolidated reduces the chances of forming competing fractures in the formation during fracturing.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: September 24, 2019
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Timothy Sampson, Stephen Zuklic, Khaled Gasmi, Brent W. Naizer, Rajani Satti, Scott G. Nelson, Harold D. Brannon, Jason McCann, James N. Gilliat, Juan C. Flores
  • Patent number: 10376955
    Abstract: A shaped charge liner including a composition of powders. The composition may include one or more of an aluminum metal powder and a titanium metal powder, a bronze metal powder, a tungsten metal powder and a graphite powder. Each powder of the composition may include grain size ranges that are different from one or more other powder grain size ranges. The bronze metal powder may include two or more different grain size ranges, and in some instances three or four different grain size ranges. A method of making the shaped charge liner and shaped charge with such liner having the composition of powders is also disclosed, as is a shaped charge including such shaped charge liner.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 13, 2019
    Assignee: DynaEnergetics GmbH & Co. KG
    Inventor: Joern Olaf Loehken
  • Patent number: 10274292
    Abstract: One embodiment of the invention provides an alloy with a density greater than 10 g/cm3, the alloy comprising a single phase solution of tungsten, nickel, and iron. Also provided is a cone liner for use in shaped charges, the liner comprised of a tungsten, nickel, iron alloy having a single phase microstructure. Substantially no precipitates or second phases exist in the alloy.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: April 30, 2019
    Assignee: U.S. Department of Energy
    Inventors: Thomas Martin Lillo, Henry S. Chu
  • Patent number: 10215873
    Abstract: The methods described are for determining distribution, orientation and dimensions of networks of hydraulically-induced fractures within a subterranean formation containing fluids. Detectable signals are generated by particles introduced into the fractures. In an exemplary method proppant-like particles are positioned in the formation during fracturing and allowed to generate a signal during or after fracturing activity. The detectable signals generated by the proppant-like particles are used to map fracture space.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: February 26, 2019
    Assignee: Hallliburton Energy Services, Inc.
    Inventors: Lee J. Hall, David Loveless, Haluk Vefa Ersoz
  • Patent number: 10184766
    Abstract: A method and device enable the linear separation of two elements attached to each other through two connecting plates of the first element and the second element respectively. An arrangement connecting and separating the two connecting plates are mixed and comprise a layer. The connecting arrangement comprises soldering, glue, or resin, whereas the separating arrangement comprises thermite. These elements can also be layered rather than mixed. An electrical triggering of this assembly causes its quick and local warming-up and thus enables both of these elements to be separated.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 22, 2019
    Assignee: AIRBUS DEFENCE AND SPACE SAS
    Inventors: Felipe Medina, Luc Preaud
  • Patent number: 10161724
    Abstract: A shaped-charge liner for a shaped-charge assembly is provided. The shaped-charge assembly includes a housing, a liner, and explosive material between the housing and the liner. The liner includes an apex portion that has an opening and that defines a fold around the opening. The explosive material supports the apex portion.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: December 25, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jerry Leroy Walker, Jason Paul Metzger
  • Patent number: 10151180
    Abstract: A low-debris low-interference semi-solid well perforator having selectively variable free volume and method for providing such is disclosed according to one or more embodiments. The perforator may include a charge tube holding an independently floating axial stack of selectively variable divider segments, each having one or more concavities formed in upper and lower sides. The segments are arranged so that concavities of adjacent segments form sockets, into which shaped charges are located. The segments provide support to minimize deformation of shaped charge cases yet provide less than 360 degrees circumferential contact about the shaped charges to form selectively variable voids for collecting debris and spall resulting from detonation. The voids and floating segments attenuate detonation shock interference. A debris guard prevents debris from entering the wellbore. Relieving slots in the debris guard attenuates transmission of shock interference through the debris guard.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: December 11, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Richard E. Robey, Christopher C. Hoelscher
  • Patent number: 10145195
    Abstract: An assembly for an explosive device for severing a well component is provided. The assembly can include an outer housing. The assembly can also include a radially-nonuniform explosive cartridge disposed within the outer housing, and the radially-nonuniform explosive cartridge can include at least four protrusions.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: December 4, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gerald Graves Craddock, Jr., Justine Marie Davidson
  • Patent number: 10138718
    Abstract: At least one crack designator for a perforating gun, wherein the gun includes a longitudinal direction, a lateral direction, and at least one scallop, wherein each crack designator is capable of redirecting crack growth from the lateral direction to the longitudinal direction of the gun. The designator may be located in one of the scallops, extend from an expected exit hole in the gun to an edge of one of the scallops, and be capable of redirecting crack growth from a lateral direction to a longitudinal direction of the gun. In preferred embodiments, the designator in each scallop is arranged in a spider pattern or concentric circles. The designator is preferably formed by machining, etching, or laser ablation. The designator may have a lower fracture toughness or lesser stiffness than surrounding material of the gun.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: November 27, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John Rodgers, Timothy S. Glenn, Marco Serra, Michael Fripp, Wesley Neil Ludwig
  • Patent number: 10119354
    Abstract: A method of separating a tubular element, comprising providing a tubular element having an inner and an outer surface, a circumference of said outer surface, and a first end and a second end; radially surrounding said tubular element with an explosive material, wherein said explosive material is capable of generating a high-velocity plasma jet in response to an activation signal, and wherein said explosive material comprises an electrically conductive layer; transmitting said activation signal to said explosive material; generating said high-velocity plasma jet; and separating said tubular element into a first portion comprising said first end and a second portion comprising said second end when said high-velocity plasma jet penetrates said outer surface of said tubular element and exits said inner surface of said tubular element.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: November 6, 2018
    Assignee: SHELL OIL COMPANY
    Inventor: Curtis Len Wilie
  • Patent number: 10119351
    Abstract: An apparatus can include a well treatment system that supplies a treatment fluid, a conveyance device and a well tool conveyed by the conveyance device. The well tool can include a perforator configured to form at least one hole in the wellbore tubular and a restrictor projecting from an outer surface of the well tool and adjacent to the perforator. A gap may separate the restrictor and the wellbore tubular. The well tool may also include a flow space that provides fluid communication between a location uphole of the restrictor and a location downhole of the restrictor. The flow space is sized to be restricted by particles in the treatment fluid. The restrictor at least restricts fluid flow through an annulus between the restrictor and the wellbore tubular, and the well tool diverts a substantial amount of the treatment fluid through an at least one hole formed by the perforator.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: November 6, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Juan C. Flores, Luis A. Castro, Sr., Andre J. Porter
  • Patent number: 10065220
    Abstract: A method and a cleaning device for removing deposits in interiors of tanks and systems by explosion technology. The cleaning device, an explosive, gaseous mixture is provided and caused to explode in order to clean the interior. The explosion pressure wave is conducted into the interior via an outlet opening in the cleaning device. The explosive mixture or gaseous components thereof are introduced into an accommodating chamber of the cleaning device from pressure vessels at high velocity.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: September 4, 2018
    Assignee: BANG & CLEAN GMBH
    Inventors: Rainer Flury, Markus Bürgin
  • Patent number: 10060234
    Abstract: A low-debris low-interference semi-solid well perforator having selectively variable free volume and method for providing such is disclosed according to one or more embodiments. The perforator may include a charge tube holding an independently floating axial stack of selectively variable divider segments, each having one or more concavities formed in upper and lower sides. The segments are arranged so that concavities of adjacent segments form sockets, into which shaped charges are located. The segments provide support to minimize deformation of shaped charge cases yet provide less than 360 degrees circumferential contact about the shaped charges to form selectively variable voids for collecting debris and spall resulting from detonation. The voids and floating segments attenuate detonation shock interference. A debris guard prevents debris from entering the wellbore. Relieving slots in the debris guard attenuates transmission of shock interference through the debris guard.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: August 28, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Richard E. Robey, Christopher C. Hoelscher
  • Patent number: 10054414
    Abstract: Generally, embodiments of the invention can include a linear shaped charge (LSC) end cap coupling structure adapted for holding an initiator structure adapted to initiate a booster explosive material, the booster explosive material, and the LSC in abutting contact with each other. One embodiment includes a rubber body formed with cavities adapted to receive the LSC, booster, and initiator structure (e.g., detonation cord). One internal cavity can be formed with a plurality of flexible protrusions or fins which are oriented towards a center axis of the preferred embodiment of three cavities configured to impart an interference fit with the initiator structure. Methods related to the invention are also provided.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 21, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Eric Scheid, Dan Thomas, Brad Moan, Tom Gailey
  • Patent number: 10048047
    Abstract: 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.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: August 14, 2018
    Assignee: Alba Manufacturing Corp.
    Inventors: Albert Petrus Van Niekerk, Adriaan Johannes Goosen
  • Patent number: 10047591
    Abstract: 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.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: August 14, 2018
    Inventors: William T. Bell, James G. Rairigh
  • Patent number: 10036616
    Abstract: A system that provides control of the output shockwave properties of energetic material wherein the system includes an energetic material having a first portion and a second portion. An additive manufacturing system combines the first portion and the second portion of the energetic material wherein the first portion and the second portion are positioned relative to each other to provide control of the output shockwave properties of the energetic material.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: July 31, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Alexander E. Gash, Eric B. Duoss, Joshua D. Kuntz, Kyle T. Sullivan, John Vericella, Bradley W. White
  • Patent number: 9976397
    Abstract: A technique facilitates perforation, including the perforation of a casing and formation. A shaped charge is formed with a case, a liner, and a high explosive material located between the case and the liner. The liner is formed of a powder material, e.g. a powder metal material. The powder material properties of the liner between an apex of the liner and a skirt of the liner may be selectively varied to provide a desired jet velocity and jet mass of the liner upon detonation of the high explosive material.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 22, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Wenbo Yang, James Guilkey, Lawrence A. Behrmann
  • Patent number: 9909834
    Abstract: An explosive disruptor includes a first jacket having joined inflatable members. The inflatable members are adapted to be filled with a gas. A second jacket is surrounded by and coupled to the first jacket. The second jacket has an outer radial wall, an inner radial wall spaced apart from the outer radial wall, and two end walls coupled to opposing axial ends of the outer radial wall and the inner radial wall. A first volumetric region is defined between the outer radial wall, the inner radial wall, and the two end walls. A second volumetric region is defined by the inner radial wall. The first volumetric region is sealed and adapted to be filled with a liquid. An explosive material is disposed in the second volumetric region. A blasting cap is in contact with the explosive material.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 6, 2018
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Christopher Wilhelm, Angel Diaz, Lee Foltz, Daniel McCarthy
  • Patent number: 9897421
    Abstract: An enhanced linear shaped charge (X-Jet) includes a sheath and a spinal charge element. The sheath extends along an axis between a first end and a second end to define a sheath length. The sheath has a first hollowed chevron-shaped cross-section that defines a main charge cavity, an upper apex, and a lower apex. The spinal charge element is disposed within the main charge cavity and abuts the upper apex. The spinal charge element further includes a spinal casing that extends along the sheath length to define a spinal length. The spinal casing has a hollowed cross-section defining a spinal charge cavity.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 20, 2018
    Assignee: GOODRICH CORPORATION
    Inventors: Steven McDonald, Dennis Way
  • Patent number: 9857157
    Abstract: Exemplary apparatus, systems, and methods to provide an ability to quickly and securely hand emplace stand-off demolition charges to various surfaces or structures including surfaces including any flat surface. An aspect of the embodiment of the invention is a lightweight attachment bracket that will hold charges at distances up to (e.g., ten inches) away from a vertical target. The bracket is collapsible, therefore provides a user adjustable stand-off, which is necessary for some applications. Attachment to ferrous material can be instant through a set of rare earth metals imbedded in the base of the bracket. A skirt of high strength textile material provides attachment to other surfaces via integrated hooks and rings. Alternative embodiments of the invention could include an electromagnetic system provided to couple the bracket with a battery in order to provide a limited amount of power to operate the system.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: January 2, 2018
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Eric Scheid, Brad Moan
  • Patent number: 9778008
    Abstract: Generally, embodiments of the invention can include a linear shaped charge (LSC) end cap coupling structure adapted for holding an initiator structure adapted to initiate a booster explosive material, the booster explosive material, and the LSC in abutting contact with each other. One embodiment includes a rubber body formed with cavities adapted to receive the LSC, booster, and initiator structure (e.g., detonation cord). One internal cavity can be formed with a plurality of flexible protrusions or fins which are oriented towards a center axis of the preferred embodiment of three cavities configured to impart an interference fit with the initiator structure. Methods related to the invention are also provided.
    Type: Grant
    Filed: November 28, 2015
    Date of Patent: October 3, 2017
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Eric Scheid, Dan Thomas, Brad Moan, Tom Gailey
  • Patent number: 9638500
    Abstract: A fragmentation warhead with a flexible liner enables increased control of the warhead's fragmentation pattern. The flexible liner is fixed to a rigid portion of the warhead housing. Explosive material is contained in the housing. A fluid is disposed between the explosive material and the flexible liner to function as a shock transition material. The fluid is contiguous with and bears on an inner surface of the flexible liner. A plurality of rigid fragments or a plurality of explosively formed projectile (EFP) liners are fixed to an outer surface of the flexible liner opposite the fluid. Initiation of the explosive material propels the fragments or EFP liners in directions that may be varied by varying the shape of the flexible liner.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: May 2, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Tomasz Blyskal, Peter Rottinger
  • Patent number: 9625240
    Abstract: An enhanced linear shaped charge (X-Jet) includes a sheath and a spinal charge element. The sheath extends along an axis between a first end and a second end to define a sheath length. The sheath has a first hollowed chevron-shaped cross-section that defines a main charge cavity, an upper apex, and a lower apex. The spinal charge element is disposed within the main charge cavity and abuts the upper apex. The spinal charge element further includes a spinal casing that extends along the sheath length to define a spinal length. The spinal casing has a hollowed cross-section defining a spinal charge cavity.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 18, 2017
    Assignee: GOODRICH CORPORATION
    Inventors: Steven McDonald, Dennis Way
  • Patent number: 9612094
    Abstract: This invention is a shaped explosive device with a liner that has a parabolic apex, which can produce a purely planar symmetric jet. The half pipe liner in the present invention has a parabolic apex or pole toward the aft end, a “V” notch on each side of the concave wings toward the fore end, and liner base end on each wing. Liner resembles two angled half sections of thin walled pipe butted together at the apex or pole, and when properly driven by a high explosive will produce a spade shaped stretching Munroe jet that erodes a deep elongated hole in a target. Alternatively, this invention is a shaped explosive device with a liner that produces a single combination jet consisting of a forward rod portion and rearward flattened spade shaped portion, this jet has a velocity gradient form tip to tail. When applied in a circular or other polygonal shaped array the Axilinear shaped charges will produce extremely large diameter holes greater than the overall diameter of the array.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 4, 2017
    Assignee: Innovative Defense, LLC
    Inventor: Nicholas Collier
  • Patent number: 9574416
    Abstract: Explosive cutter assemblies and methods include a liner having a single unitary body, and an explosive charge disposed within the liner. The explosive charge includes a continuous unitary body of explosive material having a first area disposed in association with an inner surface of the liner and a second area extending from the center of the assembly to the first area. A detonator can be used to ignite the second area of explosive material, causing propagation of a detonation to the first area, which in turn causes deformation of the liner and projection of the liner toward a target to form a cut. An adaptor sub having a detonator within can be inserted into the cutter assembly to secure the assembly together, position the detonator in association with the explosive material, and engage a conduit usable to raise and lower the cutter assembly and transmit a detonation signal.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: February 21, 2017
    Assignee: Wright's Well Control Services, LLC
    Inventors: David C. Wright, John J. Kenny, David Siggers
  • Patent number: 9470483
    Abstract: 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.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: October 18, 2016
    Inventor: Zeping Wang
  • Patent number: 9428979
    Abstract: A shaped charge casing cutter is constructed with the cutter explosive formed into radial section modules aligned in a toroidal cavity between a pair of housing plates. The center sections of the housing plates are contiguously aligned with opposite parallel surfaces of a center disc. The housing plates comprise annular edges or rims, and the rims can be offset from respective center disc planes in opposite directions from each other to form a toroidal cavity. The toroidal cavity is enclosed by a circumferential belt secured to said housing plate rims. V-grooved shaped charge explosive in the form of multiple pi sections is distributed about the cavity to intimately contact a pair of frusto-conical liners. Assembly tolerance space between the pi sections is filled by dense paper card stock.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: August 30, 2016
    Inventors: William T. Bell, James G. Rairigh
  • Patent number: 9383176
    Abstract: A system where a group of substantially universal pre-manufactured explosive pellet assemblies are provided for on-site forming of shaped charges. That is, a specifically tailored liner may also be separately provided to the worksite/oilfield and combined with any one of the pellet assemblies so as to form a shaped charge having characteristics that are determined by the particular liner used. In this manner, hazardous shipping of fully assembled shaped charges may be avoided while at the same time allowing the operator a full range of shaped charge performance options based on the availability of uniquely tailored performance determinative liners that are also provided to the oilfield location.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: July 5, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Gerardo Arguello, Jason Mai, Wenbo Yang
  • Patent number: 9360222
    Abstract: This invention is a shaped explosive device with a liner that produces a single combination jet consisting of a forward rod portion and rearward flattened spade shaped portion, this jet has a velocity gradient form tip to tail. The jet produced by the shaped charge is axisymmetric for the forward rod portion and planar symmetric for the aft wide spade portion somewhat like linear shaped charge, thusly termed the “Axi-Linear” shaped charge. The forward rod portion of each jet erodes a round hole in the target followed by the aft flattened spade portion of the jet creating a long slotted deep cavity centered on the round hole and in the lateral direction of the spade jet.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: June 7, 2016
    Assignee: Innovative Defense, LLC
    Inventor: Nicholas Collier
  • Patent number: 9194667
    Abstract: The invention relates to a method for obtaining linear detonating shaped cutting charges (100) and to novel linear detonating shaped cutting charges (100) that are able to be obtained by means of said method. Characteristically, the sheath (101) of said charges (100) is shaped before filling and, once filled, it is only slightly deformed for perfect adaptation to the material contained therein. Ultimately, said sheath (101) has concave (C) outer walls (10a, 10b).
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 24, 2015
    Assignee: PYROALLIANCE
    Inventors: Alex Chartier, Laurent D'Emmanuele, Olivier Jeanneau
  • Patent number: 9175936
    Abstract: A novel shaped charge device that produces a hollow cylindrical jet capable of creating a hole in a target larger than the overall diameter of the device. In the conical family of axisymmetric circular linear shaped charge liners (Conical, Tulip, and Trumpet), this novel swept conical-like profile shaped explosive device produces a large diameter stretching hollow cylindrical jet and corresponding slug. The hollow jet is formed by peripherally initiating a high explosive (HE) that collapses the circular linear liner into the hollow cylindrical jet. The precision of the circular simultaneous peripheral 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.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 3, 2015
    Assignee: Innovative Defense, LLC
    Inventor: Nicholas Collier
  • Patent number: 9175940
    Abstract: This novel axisymmetric revolved arc explosively formed projectile (REFP) shaped charge design will produce a projectile that is greater than ? the diameter of the device forms a hole larger than the device diameter and removes all of the target material within the hole diameter. 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 revolved liner into a large diameter double wall hollow cylindrical explosively formed projectile.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 3, 2015
    Assignee: Innovation Defense, LLC
    Inventor: Nicholas Collier
  • Patent number: 9045692
    Abstract: One or more aspects of the present invention relate to a linear shaped charge comprising an explosive element, a liner, a face for application to a target object and a space between the liner and the face, the liner being arranged for projection through the space, towards the face, when the explosive element is detonated, and the explosive element and the liner having a V-shaped cross section, the liner lying in a groove of the V-shaped cross section of the explosive element, the liner having a length L of a side furthest from the face and the liner having a thickness T taken perpendicular to said length L, wherein an angle ? of an apex of the liner nearest the face is 101.5 to 106.5 degrees, and a stand-off distance SD between the face and a point of the liner nearest the face is 0.99 S to 1.21 S, S being a distance, parallel the stand-off distance SD, between the point of the liner nearest the face and the apex of the liner nearest the face.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: June 2, 2015
    Assignee: JET PHYSICS LIMITED
    Inventor: Andrew Lumley
  • Patent number: 8985024
    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.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Wenbo Yang, James Guilkey
  • Patent number: 8978558
    Abstract: One or more aspects of the present invention relate to a shaped charge, including a linear shaped charge comprising an explosive element, a liner, a face for application to a target object and a space between the liner and the face, the liner being arranged for projection through the space, towards the face, when the explosive element is detonated, wherein the linear shaped charge comprises at least one film between the liner and the face. The invention further relates to an element for a shaped charge and a method of modifying a shaped charge.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: March 17, 2015
    Assignee: Jet Physics Limited
    Inventor: Andrew Lumley
  • Publication number: 20150040789
    Abstract: An enhanced linear shaped charge (X-Jet) includes a sheath and a spinal charge element. The sheath extends along an axis between a first end and a second end to define a sheath length. The sheath has a first hollowed chevron-shaped cross-section that defines a main charge cavity, an upper apex, and a lower apex. The spinal charge element is disposed within the main charge cavity and abuts the upper apex. The spinal charge element further includes a spinal casing that extends along the sheath length to define a spinal length. The spinal casing has a hollowed cross-section defining a spinal charge cavity.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 12, 2015
    Applicant: Goodrich Corporation
    Inventors: Steven McDonald, Dennis Way
  • Publication number: 20150013561
    Abstract: The invention relates to a method for obtaining linear detonating shaped cutting charges (100) and to novel linear detonating shaped cutting charges (100) that are able to be obtained by means of said method. Characteristically, the sheath (101) of said charges (100) is shaped before filling and, once filled, it is only slightly deformed for perfect adaptation to the material contained therein. Ultimately, said sheath (101) has concave (C) outer walls (10a, 10b).
    Type: Application
    Filed: September 14, 2012
    Publication date: January 15, 2015
    Applicant: PYROALLIANCE
    Inventors: Alex Chartier, Laurent D'Emmanuele, Olivier Jeanneau
  • Publication number: 20140366763
    Abstract: A system where a group of substantially universal pre-manufactured explosive pellet assemblies are provided for on-site forming of shaped charges. That is, a specifically tailored liner may also be separately provided to the worksite/oilfield and combined with any one of the pellet assemblies so as to form a shaped charge having characteristics that are determined by the particular liner used.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 18, 2014
    Inventors: Gerardo Arguello, Jason Mai, Wenbo Yang
  • Patent number: 8904934
    Abstract: A segmented flexible linear shaped charge for use with an explosive device. The segmented flexible linear shaped charge includes a flexible explosive core and a plurality of axially spaced housing segments having rigidity greater than that of the core.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 9, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Eric Scheid
  • Patent number: 8794153
    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).
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: August 5, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Corbin S. Glenn
  • Patent number: 8763532
    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.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: July 1, 2014
    Assignee: Owen Oil Tools LP
    Inventors: Zeping Wang, Dan Pratt, Paul Noe
  • Patent number: 8741191
    Abstract: A method of making an explosive charge liner comprises introducing powdered material into a basin defined by a die block, where a punch is shaped to interact with the basin, excluding the powdered material from a central portion of the basin, pressing the punch into the powdered material in the basin to form the explosive charge liner, and removing the explosive charge liner from the die block. The explosive charge liner comprises an aperture in an apex area of the explosive charge liner corresponding to the central portion when removed from the die block.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: June 3, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jerry L. Walker
  • Publication number: 20140144341
    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.
    Type: Application
    Filed: July 31, 2012
    Publication date: May 29, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Jerry L. Walker
  • Patent number: 8734960
    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.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: May 27, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jerry L. Walker
  • Patent number: 8726809
    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.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 20, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Ian C. Walton, Brenden M. Grove
  • Patent number: 8701767
    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.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Timothy A. Andrzejak, Claude Dewayne Jones
  • Publication number: 20130299194
    Abstract: 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.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 14, 2013
    Inventors: William T. Bell, James G. Rairigh
  • Patent number: 8459186
    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.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: June 11, 2013
    Assignee: Owen Oil Tools LP
    Inventors: Zeping Wang, Dan Pratt, Paul Noe
  • Patent number: 8459185
    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.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: June 11, 2013
    Assignee: Sandia Corporation
    Inventors: Juan-Carlos Jakaboski, Chance G. Hughs, Steven N. Todd