US20090294176A1 - Hollow Charge Liners Made of Powder Metal Mixtures - Google Patents

Hollow Charge Liners Made of Powder Metal Mixtures Download PDF

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Publication number
US20090294176A1
US20090294176A1 US11/721,384 US72138405A US2009294176A1 US 20090294176 A1 US20090294176 A1 US 20090294176A1 US 72138405 A US72138405 A US 72138405A US 2009294176 A1 US2009294176 A1 US 2009294176A1
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US
United States
Prior art keywords
weight
powder metal
metal mixtures
hollow charge
liners made
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
US11/721,384
Other languages
English (en)
Inventor
Uwe Gessel
Malte Veehmayer
Liam Mcnelis
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.)
DynaEnergetics GmbH and Co KG
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to DYNAENERGETICS GMBH & CO. KG reassignment DYNAENERGETICS GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VEEHMAYER, MALTE, GESSEL, UWE, MCNELIS, LIAM
Publication of US20090294176A1 publication Critical patent/US20090294176A1/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
    • F42B1/032—Shaped or hollow charges characterised by the material of the liner

Definitions

  • the subject matter of the present invention is liners for hollow charges made of cold-pressed powder metal mixtures that are used for example for the purpose of blasting well drill holes in the oil and gas extraction industry.
  • liners made of cold-pressed powder metal mixtures are prior art.
  • powder metal mixtures are meant mixtures of metals and/or mixtures of alloys of metals in powder form.
  • the powder metal mixtures are pressed into the final shape by compression under sufficiently high pressure without an additional supply of heat, as is disclosed in DE 19625897 B4.
  • the mixture constituents of the powder metal mixture are previously mixed in accordance with their fractions.
  • Hollow charge liners made of powder metal mixtures during blasting produce a dust jet, the terminal ballistic properties of which differ fundamentally from those of a plastically deforming jet, such as occurs when firing solid material liners.
  • hollow charge liners made of powder metal mixtures even with low stand-off ranges, i.e. short distances between charge and target, it is possible to produce high penetration depths.
  • the powder metal mixtures that are used to manufacture the liners may vary widely.
  • a mixture may contain for example 10 to 30% by weight of a soft metal, which serves as a binding agent, while the remaining fraction of the mixture may comprise harder metals.
  • a binding agent lead is used in the majority of commercially available liners.
  • other metals such as for example bismuth, silver, gold, tin, uranium, antimony, zinc, cobalt or nickel.
  • the rest of the mixture often comprises heavy metals such as copper, bronze and/or tungsten in different mixing ratios.
  • slugs are meant residual pieces of the jet that block the penetration channels after the blast.
  • WO 2000/012858 A2 and U.S. Pat. No. 6,655,291 B2 it is therefore proposed to add molybdenum to the tungsten-lead mixture in order to reduce slug formation.
  • a further drawback of pure tungsten-lead mixtures is the low hole diameter of the opening-shot holes.
  • the hole diameter of the opening-shot channel is however crucial for the hydraulic resistance during extraction. A large hole diameter combined with a high penetration depth is therefore considered advantageous.
  • An object of the present invention was to provide liners for hollow charges, by means of which a large hole diameter combined with a high penetration depth is achieved.
  • the object is achieved by the features of the main claim.
  • Advantageous developments are indicated in the sub-claims.
  • light-metal powders for example aluminium powder and/or titanium powder
  • tungsten-lead mixtures or tungsten-copper/bronze-lead mixtures leads to a marked increase of the hole diameter without incurring large losses in terms of the penetration depth.
  • tantalum and/or other heavy metals and/or alloys thereof may be used.
  • tungsten may be entirely replaced by bronze or copper or a mixture of these. In this case, bronze and copper are usable in any desired mixing ratios.
  • Hollow charge liners made of powder metal mixtures that contain 1 to 46% by weight, in a preferred manner 1 to 16% by weight, in a particularly preferred manner 3 to 11% by weight aluminium and/or titanium, as well as lead and one or more substances selected from: one or more heavy metals and/or alloys thereof, in a preferred manner bronze, copper, tungsten, tantalum and/or molybdenum, and/or graphite.
  • Hollow charge liners made of powder metal mixtures that contain 14 to 30% by weight lead, 70 to 85% by weight tungsten and 1 to 16, in a preferred manner 3 to 11% by weight aluminium.
  • Hollow charge liners made of powder metal mixtures that contain 14 to 30% by weight lead, 70 to 85% by weight tungsten and 1 to 16, in a preferred manner 3 to 11% by weight titanium.
  • Hollow charge liners made of powder metal mixtures that contain 14 to 30% by weight lead, 10 to 50; in a preferred manner 10 to 30% by weight tungsten, 30 to 60, in a preferred manner 50 to 60% by weight bronze or copper or a mixture of these and 1 to 46, in a preferred manner 1 to 16, in a particularly preferred manner 3 to 11% by weight aluminium.
  • Hollow charge liners made from powder metal mixtures that contain 14 to 30% by weight lead, 10 to 50, in a preferred manner 10 to 30% by weight tungsten, 30 to 60, in a preferred manner 50 to 60% by weight bronze or copper or a mixture of these and 1 to 46, in a preferred manner 1 to 16, in a particularly preferred manner 3 to 11% by weight titanium.
  • Hollow charge liners made from powder metal mixtures that contain 14 to 50% by weight lead, 50 to 80% by weight bronze or copper or a mixture of these and 1 to 36, in a preferred manner 1 to 16, in a particularly preferred manner 3 to 11% by weight aluminium.
  • Hollow charge liners made from powder metal mixtures that contain 14 to 50% by weight lead, 50 to 80% by weight bronze or copper or a mixture of these and 1 to 36, in a preferred manner 1 to 16, in a particularly preferred manner 3 to 11% by weight titanium.
  • molybdenum may also be added to these powder metal mixtures according to the invention for manufacturing hollow charge liners.
  • Hollow charge liners made of powder metal mixtures that additionally contain graphite.
  • Hollow charge liners made of powder metal mixtures that, in addition to or instead of tungsten, contain tantalum and/or other heavy metals and/or alloys thereof.
  • Hollow charge liners according to the invention made of powder metal mixtures, manufactured by cold-pressing powder metal mixtures.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Fluid-Damping Devices (AREA)
US11/721,384 2004-12-13 2005-12-12 Hollow Charge Liners Made of Powder Metal Mixtures Abandoned US20090294176A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE102004060136.4 2004-12-13
DE102004060136 2004-12-13
DE102005002816 2005-01-20
DE102005002816.0 2005-01-20
DE102005011190.4 2005-03-09
DE102005011190 2005-03-09
PCT/EP2005/013283 WO2006063753A1 (de) 2004-12-13 2005-12-12 Hohlladungseinlagen aus pulvermetallmischungen

Publications (1)

Publication Number Publication Date
US20090294176A1 true US20090294176A1 (en) 2009-12-03

Family

ID=36046942

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/721,384 Abandoned US20090294176A1 (en) 2004-12-13 2005-12-12 Hollow Charge Liners Made of Powder Metal Mixtures

Country Status (6)

Country Link
US (1) US20090294176A1 (es)
EP (1) EP1828708A1 (es)
AR (1) AR051712A1 (es)
CA (1) CA2590052A1 (es)
NO (1) NO20072889L (es)
WO (1) WO2006063753A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8869703B1 (en) * 2012-10-19 2014-10-28 Textron Systems Corporation Techniques utilizing high performance armor penetrating round
US9862027B1 (en) * 2017-01-12 2018-01-09 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
US20180372460A1 (en) * 2017-06-23 2018-12-27 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201012716D0 (en) 2010-07-29 2010-09-15 Qinetiq Ltd Improvements in and relating to oil well perforators

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375108A (en) * 1964-04-30 1968-03-26 Pollard Mabel Shaped charge liners
US5221808A (en) * 1991-10-16 1993-06-22 Schlumberger Technology Corporation Shaped charge liner including bismuth
US5331895A (en) * 1982-07-22 1994-07-26 The Secretary Of State For Defence In Her Britanic Majesty's Government Of The United Kingdon Of Great Britain And Northern Ireland Shaped charges and their manufacture
US5567906A (en) * 1995-05-15 1996-10-22 Western Atlas International, Inc. Tungsten enhanced liner for a shaped charge
US6354219B1 (en) * 1998-05-01 2002-03-12 Owen Oil Tools, Inc. Shaped-charge liner
US6371219B1 (en) * 2000-05-31 2002-04-16 Halliburton Energy Services, Inc. Oilwell perforator having metal loaded polymer matrix molded liner and case
US20020178962A1 (en) * 2000-05-20 2002-12-05 Reese James Warren Coated metal particles to enhance oil field shaped charge performance
US20030037692A1 (en) * 2001-08-08 2003-02-27 Liqing Liu Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications
US6564718B2 (en) * 2000-05-20 2003-05-20 Baker Hughes, Incorporated Lead free liner composition for shaped charges
US7547345B2 (en) * 2000-02-07 2009-06-16 Halliburton Energy Services, Inc. High performance powdered metal mixtures for shaped charge liners

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5656791A (en) 1995-05-15 1997-08-12 Western Atlas International, Inc. Tungsten enhanced liner for a shaped charge
US6962634B2 (en) * 2002-03-28 2005-11-08 Alliant Techsystems Inc. Low temperature, extrudable, high density reactive materials

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375108A (en) * 1964-04-30 1968-03-26 Pollard Mabel Shaped charge liners
US5331895A (en) * 1982-07-22 1994-07-26 The Secretary Of State For Defence In Her Britanic Majesty's Government Of The United Kingdon Of Great Britain And Northern Ireland Shaped charges and their manufacture
US5221808A (en) * 1991-10-16 1993-06-22 Schlumberger Technology Corporation Shaped charge liner including bismuth
US5567906A (en) * 1995-05-15 1996-10-22 Western Atlas International, Inc. Tungsten enhanced liner for a shaped charge
US5567906B1 (en) * 1995-05-15 1998-06-09 Western Atlas Int Inc Tungsten enhanced liner for a shaped charge
US6354219B1 (en) * 1998-05-01 2002-03-12 Owen Oil Tools, Inc. Shaped-charge liner
US7547345B2 (en) * 2000-02-07 2009-06-16 Halliburton Energy Services, Inc. High performance powdered metal mixtures for shaped charge liners
US20020178962A1 (en) * 2000-05-20 2002-12-05 Reese James Warren Coated metal particles to enhance oil field shaped charge performance
US6564718B2 (en) * 2000-05-20 2003-05-20 Baker Hughes, Incorporated Lead free liner composition for shaped charges
US6371219B1 (en) * 2000-05-31 2002-04-16 Halliburton Energy Services, Inc. Oilwell perforator having metal loaded polymer matrix molded liner and case
US20030037692A1 (en) * 2001-08-08 2003-02-27 Liqing Liu Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8869703B1 (en) * 2012-10-19 2014-10-28 Textron Systems Corporation Techniques utilizing high performance armor penetrating round
US20140331883A1 (en) * 2012-10-19 2014-11-13 Textron Systems Corporation Techniques utilizing high performance armor penetrating round
US9862027B1 (en) * 2017-01-12 2018-01-09 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
US10376955B2 (en) 2017-01-12 2019-08-13 Dynaenergetics Gmbh & Co. Kg Shaped charge liner and shaped charge incorporating same
US20180372460A1 (en) * 2017-06-23 2018-12-27 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
US10739115B2 (en) * 2017-06-23 2020-08-11 DynaEnergetics Europe GmbH Shaped charge liner, method of making same, and shaped charge incorporating same

Also Published As

Publication number Publication date
EP1828708A1 (de) 2007-09-05
CA2590052A1 (en) 2006-06-22
AR051712A1 (es) 2007-01-31
WO2006063753A1 (de) 2006-06-22
NO20072889L (no) 2007-09-04

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION