US20180094910A1 - Snap-on Liner Retention Device - Google Patents

Snap-on Liner Retention Device Download PDF

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Publication number
US20180094910A1
US20180094910A1 US15/563,816 US201615563816A US2018094910A1 US 20180094910 A1 US20180094910 A1 US 20180094910A1 US 201615563816 A US201615563816 A US 201615563816A US 2018094910 A1 US2018094910 A1 US 2018094910A1
Authority
US
United States
Prior art keywords
shaped charge
retainer ring
case
retention feature
circumferential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/563,816
Other languages
English (en)
Inventor
Laura Montoya Ashton
William R Collins
Charles Levine
Debra Christine McDonald
Aaron Lee McGregor
Bradley Dean Schulte
Shane Matthew Wilson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunting Titan Inc
Original Assignee
Hunting Titan Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunting Titan Inc filed Critical Hunting Titan Inc
Priority to US15/563,816 priority Critical patent/US20180094910A1/en
Assigned to HUNTING TITAN, INC. reassignment HUNTING TITAN, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEVINE, Charles, COLLINS, WILLIAM R., MCDONALD, DEBRA CHRISTINE, SCHULTE, BRADLEY DEAN, MCGREGOR, AARON LEE, MONTOYA ASHTON, Laura, WILSON, SHANE MATHEW
Publication of US20180094910A1 publication Critical patent/US20180094910A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/028—Shaped or hollow charges characterised by the form of the liner
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/119—Details, e.g. for locating perforating place or direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/036—Manufacturing processes therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/117—Shaped-charge perforators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques
    • F42D3/04—Particular applications of blasting techniques for rock blasting

Definitions

  • tubulars When completing a subterranean well for the production of fluids, minerals, or gases from underground reservoirs, several types of tubulars are placed downhole as part of the drilling, exploration, and completions process. These tubulars can include casing, tubing, pipes, liners, and devices conveyed downhole by tubulars of various types. Each well is unique, so combinations of different tubulars may be lowered into a well for a multitude of purposes.
  • a subsurface or subterranean well transits one or more formations.
  • the formation is a body of rock or strata that contains one or more compositions.
  • the formation is treated as a continuous body.
  • hydrocarbon deposits may exist.
  • a wellbore will be drilled from a surface location, placing a hole into a formation of interest.
  • Completion equipment will be put into place, including casing, tubing, and other downhole equipment as needed.
  • Perforating the casing and the formation with a perforating gun is a well-known method in the art for accessing hydrocarbon deposits within a formation from a wellbore.
  • a shaped charge is a term of art for a device that when detonated generates a focused explosive output. This is achieved in part by the geometry of the explosive in conjunction with a liner in the explosive material.
  • a shaped charge includes a metal case that contains an explosive material with a concave shape, which has a thin metal liner on the inner surface. Many materials are used for the liner; some of the more common metals include brass, copper, tungsten, and lead.
  • a perforating gun has a gun body.
  • the gun body typically is composed of metal and is cylindrical in shape.
  • a charge holder which is a tube that is designed to hold the actual shaped charges.
  • the charge holder will contain cutouts called charge holes where the shaped charges will be placed.
  • a shaped charge is a term of art for a device that when detonated generates a focused explosive output. This is achieved in part by the geometry of the explosive in conjunction with a liner in the explosive material. Many materials are used for the liner; some of the more common metals include brass, copper, tungsten, and lead. When the explosive detonates the liner metal is compressed into a super-heated, super pressurized jet that can penetrate metal, concrete, and rock.
  • a charge holder which is a tube that is designed to hold the actual shape charges.
  • the charge holder will contain cutouts called charge holes where the shape charges will be placed.
  • a typical shaped charge is carried in a cylindrical perforating gun.
  • the liner is held within the shaped charge case using an adhesive material.
  • Adhesives present issues during the manufacturing process that incur additional costs and have environmental issues.
  • An example embodiment is a shaped charge apparatus having a shaped charge case with an axis, an inner surface, an outer surface, and a top surface, and at least one circumferential groove on the outer surface.
  • An L-shaped inner retainer ring with an inner radial surface, an outer radial surface, a lower axial surface, and an upper axial surface may be attached to the shaped charge case.
  • the lower axial surface of the inner retainer ring may be adjacent to the top surface of the shaped charge and the outer radial surface maybe adjacent to the inner surface of the shaped charge.
  • Another L-shaped outer retainer ring having an upper axial surface, a lower axial surface, an inner radial surface, and an outer radial surface, may be attached to the top of the L-shaped inner ring.
  • the inner radial surface of the outer retainer ring may include at least one circumferential groove interfaced with the shaped charge outer surface circumferential groove.
  • the shaped charge may include a liner with an inner surface and an outer surface. The liner may be restrained axially by the inner retainer ring and the outer retainer ring.
  • An explosive material may be located between the outer surface of the liner and the inner surface of the shaped charge case.
  • a variation of the example embodiment may include the one circumferential groove on the outside surface of the shaped charge case being a plurality of circumferential grooves. At least one circumferential groove on the inner radial surface of the outer retainer ring may be a plurality of circumferential grooves.
  • the inner retainer ring may be composed of plastic.
  • the outer retainer ring may be composed of plastic.
  • the outer retainer ring and the inner retainer ring may be integrally formed into a single retainer ring.
  • the inner retainer ring may be rated to function up to 400 degrees Fahrenheit.
  • the outer retainer ring may be rated to function up to 400 degrees Fahrenheit.
  • the inner retainer ring may have a low electrical conductivity.
  • the outer retainer ring may have a low electrical conductivity.
  • the inner retainer ring may be manufactured using an additive manufacturing process.
  • the outer retainer ring may be manufactured using an additive manufacturing process.
  • Another example embodiment may include a method for making a shaped charge by forming explosive material inside of a shaped charge case, forming a liner over the explosive material, and installing a first retainer ring onto the shaped charge case.
  • the retainer ring may prevent axial movement of the liner and the explosive material within said shaped charge case.
  • a variation of the example embodiment may further include installing a second retainer ring to the shaped charged case.
  • the example may include installing the shaped charge in a charge tube.
  • the second retainer ring may prevent axial movement of the first retainer ring.
  • the forming of a liner may result in a substantially frusto-conical shape.
  • the forming of explosive material may result in a substantially frusto-conical shape.
  • the example embodiment may include electrically isolating the shaped charge. It may include manufacturing the first retainer ring. It may include manufacturing the second retainer ring.
  • the manufacturing of the first retainer ring may include an additive manufacturing process.
  • the manufacturing of the second retainer ring may include an additive manufacturing process.
  • Another example embodiment may include a shaped charge with a case having an apex end, an open end having a rim, and a cavity extending into case from the open end. It may have a liner fitted into the open end of the case. It may have an electrically insulating ring adapted to fit over the rim of the open end of the case.
  • a variation of the example embodiment may include the rim of the open end of the case being substantially circular. It may have a substantially cylindrical inner surface and a substantially cylindrical outer surface and the insulating ring being substantially circular and a substantially cylindrical inner surface and a substantially cylindrical outer surface.
  • the inner surface of the insulating ring may have a smaller diameter than the inner surface of the open end of the case.
  • the outer surface of the rim of the case may have a retention feature.
  • the retention feature may include a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • the inner surface of the rim of the case may have a retention feature that may include a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove or a plurality of circumferential grooves.
  • the embodiment may include the inner surface of the insulating ring with a retention feature.
  • the retention feature may include a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • inventions may include the outer surface of the insulating ring having a retention feature of a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • the rim of the open end of the case being substantially circular and having a substantially cylindrical inner surface. It may also have a substantially cylindrical outer surface. It may also have the insulating ring having a substantially circular end face, a substantially cylindrical inner wall extending axially from the end face, and a substantially cylindrical outer wall extending axially from the end face.
  • the outer wall of the insulating ring may be adapted to fit outside the outer surface of the rim of the case.
  • the outer wall of the insulating ring may include a retention feature adapted to engage a retention feature on the outer surface of the rim of the case.
  • the inner wall of the insulating ring may be adapted to fit inside the inner surface of the rim of the case.
  • the inner wall of the insulating ring may have a retention feature adapted to engage a retention feature on the inner surface of the rim of the case.
  • FIG. 1 is cross section of an example perforating gun.
  • FIG. 2 is a cross section view of a shaped charge with an inner retainer ring and an outer retainer ring.
  • FIG. 3 is a cross section view of a shaped charge with a single retainer ring.
  • a typical perforating gun 10 includes a gun body 11 that houses the shaped charges 12 .
  • the gun body 11 contains end fittings 16 and 20 which secures the charge tube 18 into place.
  • the charge tube 18 has charge holes 23 that are openings where shaped charges 12 may be placed.
  • the gun body 11 has threaded ends 14 that allow it to be connected to a series of perforating guns 10 or to other downhole equipment depending on the job requirement. Other design variations may use ends that are bolted together.
  • a 60 degree phase gun is shown where each shaped charge 12 is rotated about the center axis by 60 degrees from one shaped charge to the next.
  • Each shaped charge 12 has a corresponding scallop 21 milled into the gun body 11 .
  • Other embodiments of this design are possible including zero degree phase guns, where all the shaped charges are aligned.
  • Other end fittings or connections could be used in lieu of threaded fittings, such as bolted fittings.
  • an example embodiment is a shaped charge 116 with a shaped charge case 111 having an axis 117 , an inner surface 108 , an outer surface 118 , and a top surface 107 .
  • Shaped charge case 111 has circumferential groove 103 on the outer surface 118 .
  • An L-shaped inner retainer ring 115 with an inner radial surface 109 , an outer radial surface 119 , a lower axial surface 120 , and an upper axial surface 106 is attached to the top surface 107 of the shaped charge case 111 .
  • the lower axial surface 120 is adjacent to the top surface 107 of the shaped charge case 111 .
  • the outer radial surface 119 is adjacent to the inner surface 108 of the shaped charge case 111 .
  • a L-shaped outer retainer ring 102 having an upper axial surface 122 , a lower axial surface 121 , an inner radial surface 104 , and an outer radial surface 105 engages with the shaped charge case 111 .
  • Its inner radial surface 104 includes at least one circumferential groove 123 that is interfaced with the shaped charge outer surface circumferential groove 103 .
  • the shaped charge 116 includes a liner 113 with an inner surface 124 and an outer surface 125 .
  • the liner 113 is restrained axially by the inner retainer ring 115 and the outer retainer ring 102 .
  • An explosive material 112 is located between the outer surface 125 of the liner 113 and the inner surface 108 of the shaped charge case 111 .
  • the shaped charge case 111 has an apex end 126 .
  • Another example embodiment may include the shaped charge case 111 having an axis 117 , an inner surface 108 , an outer surface 118 , and a top surface 107 and at least one circumferential retaining feature 103 for retaining a ring on the outer surface.
  • the retaining feature 103 may be a circumferential groove, a plurality of circumferential grooves, a thread, a buttress thread, a plurality of ridges, a plurality of detents, a lip, or some other retaining means that is well known in the art.
  • a variation of the example embodiment may include a plurality of circumferential grooves 103 on the outside surface 118 of the shaped charge case 111 .
  • the inner retainer ring 115 may be composed of plastic.
  • the outer retainer ring 102 may be composed of plastic.
  • the inner retainer ring 115 may be rated to function up to 400 degrees Fahrenheit.
  • the outer retainer ring 102 may be rated to function up to 400 degrees Fahrenheit.
  • the inner retainer ring 115 probably has a low electrical conductivity.
  • the outer retainer ring 102 probably has a low electrical conductivity.
  • the inner retainer ring 115 may be manufactured using an additive manufacturing process.
  • the outer retainer ring 102 may be manufactured using an additive manufacturing process.
  • Another example embodiment includes a method for making a shaped charge by forming explosive material 112 inside of a shaped charge case 111 , forming a liner 113 over the explosive material 112 , and installing a first retainer ring 115 onto the shaped charge case 111 .
  • the retainer ring 115 prevents axial movement of the liner 113 and the explosive material 112 within said shaped charge case 111 .
  • a variation of the example embodiment includes installing a second retainer ring 102 to the shaped charged case 111 . It could also include installing the shaped charge 116 in a charge tube 18 .
  • the second retainer ring 102 may prevent axial movement of the first retainer ring 115 .
  • the forming of a liner 113 may result in a substantially frusto-conical shape.
  • the forming explosive material 112 may result in a substantially frusto-conical shape.
  • the example embodiment may further include electrically isolating the shaped charge 116 . It may include manufacturing the first retainer ring 115 . It may further include manufacturing the second retainer ring 102 .
  • the manufacturing of the first retainer ring 115 may include an additive manufacturing process.
  • the manufacturing of the second retainer ring 102 may include an additive manufacturing process.
  • the outer retainer ring 102 and the inner retainer ring 115 may be integrally formed into a single retainer ring 215 as shown in FIG. 3 .
  • Another example embodiment may include a shaped charge 216 with a case 211 having an apex end 226 , an open end 208 having a rim 230 , and a cavity extending into case from the open end 208 .
  • a liner 213 is fitted into the open end of the case.
  • An electrically insulating ring 215 is fitted over the rim 230 of the open end 208 of the case 211 .
  • Explosive material 212 is located between the liner 213 and the charge case 211
  • a variation of the example embodiment may include the rim 230 of the open end 208 of the case 211 being substantially circular and having a substantially cylindrical inner surface 214 . It have include a substantially cylindrical outer surface 218 .
  • the insulating ring 215 may be substantially circular. It may include a substantially cylindrical inner surface 231 and a substantially cylindrical outer surface 232 .
  • the inner surface 231 of the insulating ring 215 may have a smaller diameter than the inner surface 214 of the open end 208 of the case 211 .
  • the outer surface 218 of the rim 230 of the case 211 may include a retention feature 203 such as a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • a retention feature 203 such as a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • the inner surface 214 of the rim of the case may include a retention feature 203 such as a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • a retention feature 203 such as a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • the retention feature 233 may include a retention feature 203 such as a raised circumferential ridge, a plurality of raised circumferential ridges, a circumferential groove, or a plurality of circumferential grooves.
  • the rim 230 of the open end 208 of the case 211 being substantially circular. It may have a substantially cylindrical inner surface 214 and a substantially cylindrical outer surface 218 .
  • the insulating ring 215 may have a substantially circular end face 202 , a substantially cylindrical inner wall 235 extending axially from the end face 202 , and a substantially cylindrical outer wall 234 extending axially from the end face 202 .
  • the outer wall 234 of the insulating ring 215 may be adapted to fit outside the outer surface of the rim 230 of the case 211 .
  • the outer wall 234 of the insulating ring 215 may include a retention feature 233 adapted to engage a retention feature 203 on the outer surface 218 of the rim 230 of the case 211 .
  • the inner wall 235 of the insulating ring 215 may be adapted to fit inside the inner surface 214 of the rim 230 of the case 211 .
  • the inner wall 235 of the insulating ring 215 may include a retention feature adapted to engage a retention feature on the inner surface of the rim 230 of the case 211 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Automotive Seat Belt Assembly (AREA)
US15/563,816 2015-04-02 2016-04-01 Snap-on Liner Retention Device Abandoned US20180094910A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/563,816 US20180094910A1 (en) 2015-04-02 2016-04-01 Snap-on Liner Retention Device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562142099P 2015-04-02 2015-04-02
US15/563,816 US20180094910A1 (en) 2015-04-02 2016-04-01 Snap-on Liner Retention Device
PCT/US2016/025725 WO2016161376A1 (en) 2015-04-02 2016-04-01 Snap-on liner retention device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/025725 A-371-Of-International WO2016161376A1 (en) 2015-04-02 2016-04-01 Snap-on liner retention device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/118,604 Division US20210131770A1 (en) 2015-04-02 2020-12-11 Snap-on Liner Retention Device

Publications (1)

Publication Number Publication Date
US20180094910A1 true US20180094910A1 (en) 2018-04-05

Family

ID=57006282

Family Applications (2)

Application Number Title Priority Date Filing Date
US15/563,816 Abandoned US20180094910A1 (en) 2015-04-02 2016-04-01 Snap-on Liner Retention Device
US17/118,604 Abandoned US20210131770A1 (en) 2015-04-02 2020-12-11 Snap-on Liner Retention Device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US17/118,604 Abandoned US20210131770A1 (en) 2015-04-02 2020-12-11 Snap-on Liner Retention Device

Country Status (5)

Country Link
US (2) US20180094910A1 (de)
EP (2) EP3627092A1 (de)
CA (1) CA2980931A1 (de)
PL (1) PL3278052T3 (de)
WO (1) WO2016161376A1 (de)

Cited By (12)

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Publication number Priority date Publication date Assignee Title
US10520286B2 (en) 2018-04-06 2019-12-31 Dynaenergetics Gmbh & Co. Kg Inlay for shaped charge and method of use
US10844696B2 (en) 2018-07-17 2020-11-24 DynaEnergetics Europe GmbH Positioning device for shaped charges in a perforating gun module
US10858919B2 (en) 2018-08-10 2020-12-08 Gr Energy Services Management, Lp Quick-locking detonation assembly of a downhole perforating tool and method of using same
US11053782B2 (en) 2018-04-06 2021-07-06 DynaEnergetics Europe GmbH Perforating gun system and method of use
US11078763B2 (en) 2018-08-10 2021-08-03 Gr Energy Services Management, Lp Downhole perforating tool with integrated detonation assembly and method of using same
US11480038B2 (en) 2019-12-17 2022-10-25 DynaEnergetics Europe GmbH Modular perforating gun system
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
USD1010758S1 (en) 2019-02-11 2024-01-09 DynaEnergetics Europe GmbH Gun body
USD1019709S1 (en) 2019-02-11 2024-03-26 DynaEnergetics Europe GmbH Charge holder
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board
US11994008B2 (en) 2018-08-10 2024-05-28 Gr Energy Services Management, Lp Loaded perforating gun with plunging charge assembly and method of using same
USD1034879S1 (en) 2019-02-11 2024-07-09 DynaEnergetics Europe GmbH Gun body

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WO2019052927A1 (en) 2017-09-14 2019-03-21 Dynaenergetics Gmbh & Co. Kg HOLLOW LOADING, HOLLOW LOAD FOR HIGH-TEMPERATURE DRILLING WELL OPERATIONS, AND METHOD OF PERFORATING A DRILLING WELL USING THE SAME
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WO2022192541A1 (en) * 2021-03-12 2022-09-15 Schlumberger Technology Corporation Shaped charge integrated canister

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Cited By (17)

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Publication number Priority date Publication date Assignee Title
US11053782B2 (en) 2018-04-06 2021-07-06 DynaEnergetics Europe GmbH Perforating gun system and method of use
US10520286B2 (en) 2018-04-06 2019-12-31 Dynaenergetics Gmbh & Co. Kg Inlay for shaped charge and method of use
US11525344B2 (en) 2018-07-17 2022-12-13 DynaEnergetics Europe GmbH Perforating gun module with monolithic shaped charge positioning device
US11773698B2 (en) 2018-07-17 2023-10-03 DynaEnergetics Europe GmbH Shaped charge holder and perforating gun
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US10920543B2 (en) 2018-07-17 2021-02-16 DynaEnergetics Europe GmbH Single charge perforating gun
US11339632B2 (en) 2018-07-17 2022-05-24 DynaEnergetics Europe GmbH Unibody gun housing, tool string incorporating same, and method of assembly
US10844696B2 (en) 2018-07-17 2020-11-24 DynaEnergetics Europe GmbH Positioning device for shaped charges in a perforating gun module
US11078763B2 (en) 2018-08-10 2021-08-03 Gr Energy Services Management, Lp Downhole perforating tool with integrated detonation assembly and method of using same
US10858919B2 (en) 2018-08-10 2020-12-08 Gr Energy Services Management, Lp Quick-locking detonation assembly of a downhole perforating tool and method of using same
US11898425B2 (en) 2018-08-10 2024-02-13 Gr Energy Services Management, Lp Downhole perforating tool with integrated detonation assembly and method of using same
US11994008B2 (en) 2018-08-10 2024-05-28 Gr Energy Services Management, Lp Loaded perforating gun with plunging charge assembly and method of using same
USD1010758S1 (en) 2019-02-11 2024-01-09 DynaEnergetics Europe GmbH Gun body
USD1019709S1 (en) 2019-02-11 2024-03-26 DynaEnergetics Europe GmbH Charge holder
USD1034879S1 (en) 2019-02-11 2024-07-09 DynaEnergetics Europe GmbH Gun body
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board
US11480038B2 (en) 2019-12-17 2022-10-25 DynaEnergetics Europe GmbH Modular perforating gun system

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Publication number Publication date
EP3278052A4 (de) 2018-10-10
EP3278052A1 (de) 2018-02-07
WO2016161376A1 (en) 2016-10-06
EP3627092A1 (de) 2020-03-25
PL3278052T3 (pl) 2020-06-29
EP3278052B1 (de) 2019-12-25
CA2980931A1 (en) 2016-10-06
US20210131770A1 (en) 2021-05-06

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