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US20020129726A1 - Oil well perforator liner with high proportion of heavy metal - Google Patents

Oil well perforator liner with high proportion of heavy metal Download PDF

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Publication number
US20020129726A1
US20020129726A1 US09/810,792 US81079201A US2002129726A1 US 20020129726 A1 US20020129726 A1 US 20020129726A1 US 81079201 A US81079201 A US 81079201A US 2002129726 A1 US2002129726 A1 US 2002129726A1
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US
United States
Prior art keywords
liner
shaped charge
charge according
heavy metal
mixture
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
US09/810,792
Inventor
Nathan Clark
David Leidel
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Halliburton Energy Services Inc
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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
Priority to US09/810,792 priority Critical patent/US20020129726A1/en
Assigned to HALLIBURTON ENERGY SERVICES, INC. reassignment HALLIBURTON ENERGY SERVICES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLARK, NATHAN G., LEIDEL, DAVID JOHN
Priority to DE10296518T priority patent/DE10296518T5/en
Priority to AU2002252234A priority patent/AU2002252234A1/en
Priority to CA002440306A priority patent/CA2440306A1/en
Priority to PCT/US2002/007028 priority patent/WO2002075099A2/en
Priority to MXPA03008304A priority patent/MXPA03008304A/en
Publication of US20020129726A1 publication Critical patent/US20020129726A1/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

  • a shaped charge suitable for use in a perforating tool for a subterranean well is described.
  • the invention relates particularly to an improved shaped charge liner constructed from powdered heavy metal and binder material with a high proportion of tungsten or similar heavy metal.
  • a subterranean gas or oil well typically begins with a hole bored into the earth, which is then lined with joined lengths of relatively large diameter metal pipe.
  • the casing thus formed is generally cemented to the face of the hole to give the well integrity and a path for producing fluids to the surface.
  • the casing and cement are subsequently perforated with chemical means, commonly explosives, in one or more locations of the surrounding formation from which it is desired to extract fluids.
  • the perforations extend a distance into the formation.
  • Explosive shaped charges known in the art generally have a substantially cylindrical or conical shape and are used in various arrangements in perforating tools in subterranean wells.
  • a tubular perforating gun adapted for insertion into a well is used to carry a plurality of shaped charges to a subsurface location where perforation is desired.
  • explosive jets emanate from the shaped charges with considerable velocity and perforate the well casing and surrounding formation.
  • Liners of shaped charges have commonly been designed in an effort to maximize penetration depth.
  • Various metals have been used.
  • Solid metal liners have the disadvantage of introducing metal fragments into the formation, detracting from the effectiveness of the perforation.
  • Compressed powdered metal liners have sometimes been used. Such liners disintegrate upon detonation of the shaped charge, avoiding the problems associated with metal fragments.
  • heavy metals are particularly suited for use in liners. Generally, the heavy metal is combined with one or more other metals with suitable binding characteristics to form rigid liners through very high compression of the metal powders.
  • One of the principal problems in the art has been the attempt to increase the heavy metal content of liners. Such attempts are outlined in U.S. Pat. No. 5,656,791 and 5,814,758, which are incorporated herein for all purposes by this reference.
  • the inventions provide shaped charge apparatus for use in a subterranean well.
  • the inventions contemplate an improved liner for a shaped charge constructed from a combination mixture of a high proportion of powdered heavy metal and selected binder metal.
  • a mixture of powdered tungsten and powdered metal binder is formed into a rigid shaped charge liner having a tungsten content in a range of between approximately 90% to 99.98% by weight.
  • a liner having a tungsten content in a range of between approximately 90% to 99.98% by weight is constructed of a binder metal-coated heavy metal powder formed into a rigid body.
  • a liner for a shaped charge is constructed from a mixture of powdered tungsten and powdered metal binder blended with a binder metal-coated heavy metal powder formed into a substantially conical rigid body.
  • the resulting liner having a tungsten metal content in a range of between approximately 93% to 99.98% by weight.
  • FIG. 1 is a side elevation view of an example of an axially symmetrical shaped charge in accordance with the invention.
  • FIG. 2 is cross-sectional view taken along line 2 - 2 of FIG. 1 showing an example of an embodiment of a shaped charge in accordance with the inventions.
  • FIGS. 1 and 2 The apparatus and methods of the invention are shown generally in FIGS. 1 and 2.
  • a conically symmetrical shaped charge 10 is shown.
  • the shaped charge is sized for a perforating gun commonly used to perforate subterranean wells and formations.
  • a plurality of shaped charges are arranged in a substantially helical pattern on the perforating gun assembly.
  • the exact size and shape of the shaped charge or the configuration of the perforating gun are not critical to the invention.
  • the shaped charge 10 is enclosed by a case 12 .
  • the case 12 is substantially cylindrical or conical.
  • the term “conical” is used to refer to shapes substantially conical or in the form of frustum or truncated cone.
  • the perforating gun (not shown) is placed in a subterranean location where perforation of the well casing and/or formation is desired, herein designated the target 14 .
  • the shaped charge has a muzzle 16 , which is oriented toward the target 14 , and an opposing closed end 18 .
  • the case 10 is shown in cross section, revealing that the closed end 18 has a relatively small aperture 20 connected to a detonation cord 22 .
  • the detonation cord 22 is typically operably connected to a detonation circuit system (not shown) known in the art.
  • the case 10 contains a predetermined amount of high explosives 24 generally known in the arts, for example, RDX, HMX, HNS, CL-20, NONA, BRX, PETN, or PYX.
  • a substantially conical liner 26 is disposed inside the case 12 between the high explosive 24 and the muzzle 16 , preferably such that the high explosive 24 fills the volume between the casing 12 and the liner 26 .
  • the liner is typically affixed to the case with adhesive (not shown), but a retaining ring or spring may also be used.
  • the liner 26 Upon detonation of the high explosive 24 , the liner 26 disintegrates and the liner material is propelled through the muzzle 16 into the target 14 .
  • the liner 26 is preferably constructed by compressing a powdered heavy metal and powdered metal binder material under very high pressure to form a rigid body.
  • the process of compressively forming the liner from powdered heavy metal and powdered metal binder is understood by those skilled in the arts. Other methods of fabrication, such as sintering may be used.
  • the powdered heavy metal is preferably tungsten, but may be another metal or mixture of metals. Metals with high density, high ductility, and capable of achieving high acoustic velocity are preferred. Metals chosen from the group tungsten, tantalum, hafnium, and copper are particularly suitable. Although other metals may be used, cost is often a major factor.
  • the percentage of heavy metal, preferably tungsten, in the liner is within a range of approximately 99.0% to 99.98% by weight. Optionally, percentages within a range of approximately 90.0% to 99.98% may be used.
  • the binder metal is chosen for its ability to bind together under high levels of compression.
  • metals chosen from the group copper, lead, zinc, tin, and bismuth are used.
  • the percentage of powdered binder metal, preferably lead, in the mixture is preferably within a range of approximately 0.02% to 1.0% by weight, although percentages within a range of approximately 0.02% to 10.0% may also be used.
  • mixtures of binder metals or alloys such as those containing relatively high levels of tin or zinc may be used.
  • the liner 26 may also contain approximately 0.2% to 1.0% lubricant by weight.
  • Powdered graphite is a preferred lubricant known in the arts, although oils may also be used. Some oils such as linseed oil or tung oil, or other unsaturated organic compounds as disclosed in U.S. Pat. No. 4,794,990, which is incorporated in its entirety for all purposes by this reference, are thought to be helpful in preventing corrosion of the liner.
  • the presently most preferred embodiment of the invention uses a liner 26 constructed from a heavy metal powder coated with a binder metal, a binder metal-coated heavy metal powder compressively formed into a rigid body.
  • the process of coating the heavy metal powder with a binder metal is understood by those skilled in the arts.
  • the heavy metal powder, coated with binder metal is then compressed under very high pressure into a rigid body.
  • tungsten and lead are preferred for the heavy metal and binder metal coating, respectively, although the alternative metals described above may be used. Combinations of metals may also be used.
  • the percentage of tungsten in the liner is within a range of approximately 99.0% to 99.98% by weight, although percentages within a range of approximately 90.0% to 99.98% may be used.
  • the percentage of lead in the mixture is preferably within a range of approximately 0.02% to 1.0% by weight, although percentages within a range of approximately 0.2% to 10.0% may optionally be used.
  • An additional alternative embodiment of the invention uses a liner 26 , which is constructed of a combination of the elements of the first two embodiments described. That is, a mixture of heavy metal powder and powdered binder metal may be used in combination with binder metal-coated heavy metal powder to construct the liner 26 .
  • a mixture of heavy metal powder and powdered binder metal may be used in combination with binder metal-coated heavy metal powder to construct the liner 26 .
  • the same proportions and variations in ingredients described with reference to the first two embodiments may be employed with this additional embodiment as well.
  • the invention has many advantages attendant with raising the percentage of heavy metal in the liner to higher levels than have been known in the art.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)

Abstract

A shaped charge apparatus having an improved liner for a shaped charge constructed from a combination of powdered heavy metal and metal binder. Powdered heavy metal and metal binder is formed into a rigid shaped charge liner under very high pressure. The metal binder may be in powdered form or may be used to coat the powdered heavy metal particles prior to formation. The liner may also contain a relatively small percentage of other material to enhance lubrication or corrosion resistance.

Description

    TECHNICAL FIELD
  • A shaped charge suitable for use in a perforating tool for a subterranean well is described. The invention relates particularly to an improved shaped charge liner constructed from powdered heavy metal and binder material with a high proportion of tungsten or similar heavy metal. [0001]
    • BACKGROUND OF THE INVENTIONS
  • A subterranean gas or oil well typically begins with a hole bored into the earth, which is then lined with joined lengths of relatively large diameter metal pipe. The casing thus formed is generally cemented to the face of the hole to give the well integrity and a path for producing fluids to the surface. Conventionally, the casing and cement are subsequently perforated with chemical means, commonly explosives, in one or more locations of the surrounding formation from which it is desired to extract fluids. In general, the perforations extend a distance into the formation. One of the problems inherent in the art is to maximize the depth of penetration into the formation. [0002]
  • Explosive shaped charges known in the art generally have a substantially cylindrical or conical shape and are used in various arrangements in perforating tools in subterranean wells. Generally, a tubular perforating gun adapted for insertion into a well is used to carry a plurality of shaped charges to a subsurface location where perforation is desired. Upon detonation of the shaped charges, explosive jets emanate from the shaped charges with considerable velocity and perforate the well casing and surrounding formation. [0003]
  • Liners of shaped charges have commonly been designed in an effort to maximize penetration depth. Various metals have been used. Solid metal liners have the disadvantage of introducing metal fragments into the formation, detracting from the effectiveness of the perforation. Compressed powdered metal liners have sometimes been used. Such liners disintegrate upon detonation of the shaped charge, avoiding the problems associated with metal fragments. It is known in the art that heavy metals are particularly suited for use in liners. Generally, the heavy metal is combined with one or more other metals with suitable binding characteristics to form rigid liners through very high compression of the metal powders. One of the principal problems in the art has been the attempt to increase the heavy metal content of liners. Such attempts are outlined in U.S. Pat. No. 5,656,791 and 5,814,758, which are incorporated herein for all purposes by this reference. [0004]
  • The success in the art of producing compressed powdered heavy metal liners has been limited by efforts to identify suitable binding agents among elemental metals and alloys. Previous attempts in the art have increased tungsten content to approximately 80 percent. The present invention employs binder materials in combination with tungsten powder to produce an improved shaped charge compressed liner with a tungsten content higher than previously known in the art. [0005]
    • SUMMARY OF THE INVENTIONS
  • The inventions provide shaped charge apparatus for use in a subterranean well. In general, the inventions contemplate an improved liner for a shaped charge constructed from a combination mixture of a high proportion of powdered heavy metal and selected binder metal. [0006]
  • According to one aspect of the invention, a mixture of powdered tungsten and powdered metal binder is formed into a rigid shaped charge liner having a tungsten content in a range of between approximately 90% to 99.98% by weight. [0007]
  • According to another aspect of the invention, a liner having a tungsten content in a range of between approximately 90% to 99.98% by weight is constructed of a binder metal-coated heavy metal powder formed into a rigid body. [0008]
  • According to still another aspect of the invention, a liner for a shaped charge is constructed from a mixture of powdered tungsten and powdered metal binder blended with a binder metal-coated heavy metal powder formed into a substantially conical rigid body. The resulting liner having a tungsten metal content in a range of between approximately 93% to 99.98% by weight.[0009]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The accompanying drawings are incorporated into and form a part of the specification to illustrate several examples of the present inventions. These drawings together with the description serve to explain the principals of the inventions. The drawings are only for the purpose of illustrating preferred and alternative examples of how the inventions can be made and used and are not to be construed as limiting the inventions to only the illustrated and described examples. The various advantages and features of the present inventions will be apparent from a consideration of the drawings in which: [0010]
  • FIG. 1 is a side elevation view of an example of an axially symmetrical shaped charge in accordance with the invention; and [0011]
  • FIG. 2 is cross-sectional view taken along line [0012] 2-2 of FIG. 1 showing an example of an embodiment of a shaped charge in accordance with the inventions.
    • DETAILED DESCRIPTION
  • The present inventions are described by reference to drawings showing one or more examples of how the inventions can be made and used. In these drawings, reference characters are used throughout the several views to indicate like or corresponding parts. The drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate details and features of the invention. [0013]
  • The apparatus and methods of the invention are shown generally in FIGS. 1 and 2. A conically symmetrical [0014] shaped charge 10 is shown. The shaped charge is sized for a perforating gun commonly used to perforate subterranean wells and formations. Typically, a plurality of shaped charges are arranged in a substantially helical pattern on the perforating gun assembly. The exact size and shape of the shaped charge or the configuration of the perforating gun are not critical to the invention. The shaped charge 10 is enclosed by a case 12. Generally, the case 12 is substantially cylindrical or conical. As used herein, the term “conical” is used to refer to shapes substantially conical or in the form of frustum or truncated cone. Again, the exact shape of the case is not critical to the invention. In use, the perforating gun (not shown) is placed in a subterranean location where perforation of the well casing and/or formation is desired, herein designated the target 14. The shaped charge has a muzzle 16, which is oriented toward the target 14, and an opposing closed end 18.
  • Now referring primarily to FIG. 2, the [0015] case 10 is shown in cross section, revealing that the closed end 18 has a relatively small aperture 20 connected to a detonation cord 22. The detonation cord 22 is typically operably connected to a detonation circuit system (not shown) known in the art. The case 10 contains a predetermined amount of high explosives 24 generally known in the arts, for example, RDX, HMX, HNS, CL-20, NONA, BRX, PETN, or PYX. A substantially conical liner 26 is disposed inside the case 12 between the high explosive 24 and the muzzle 16, preferably such that the high explosive 24 fills the volume between the casing 12 and the liner 26. The liner is typically affixed to the case with adhesive (not shown), but a retaining ring or spring may also be used. Upon detonation of the high explosive 24, the liner 26 disintegrates and the liner material is propelled through the muzzle 16 into the target 14. As known to those skilled in the arts, it is advantageous for the liner to disintegrate upon detonation of the high explosive and to have the maximum possible mass and velocity.
  • Further referring primarily to FIG. 2, the [0016] liner 26 is preferably constructed by compressing a powdered heavy metal and powdered metal binder material under very high pressure to form a rigid body. The process of compressively forming the liner from powdered heavy metal and powdered metal binder is understood by those skilled in the arts. Other methods of fabrication, such as sintering may be used. The powdered heavy metal is preferably tungsten, but may be another metal or mixture of metals. Metals with high density, high ductility, and capable of achieving high acoustic velocity are preferred. Metals chosen from the group tungsten, tantalum, hafnium, and copper are particularly suitable. Although other metals may be used, cost is often a major factor. Preferably, the percentage of heavy metal, preferably tungsten, in the liner is within a range of approximately 99.0% to 99.98% by weight. Optionally, percentages within a range of approximately 90.0% to 99.98% may be used.
  • The binder metal is chosen for its ability to bind together under high levels of compression. Typically, metals chosen from the group copper, lead, zinc, tin, and bismuth are used. The percentage of powdered binder metal, preferably lead, in the mixture is preferably within a range of approximately 0.02% to 1.0% by weight, although percentages within a range of approximately 0.02% to 10.0% may also be used. Optionally, mixtures of binder metals or alloys such as those containing relatively high levels of tin or zinc may be used. [0017]
  • Optionally, the [0018] liner 26 may also contain approximately 0.2% to 1.0% lubricant by weight. Powdered graphite is a preferred lubricant known in the arts, although oils may also be used. Some oils such as linseed oil or tung oil, or other unsaturated organic compounds as disclosed in U.S. Pat. No. 4,794,990, which is incorporated in its entirety for all purposes by this reference, are thought to be helpful in preventing corrosion of the liner.
  • The presently most preferred embodiment of the invention uses a [0019] liner 26 constructed from a heavy metal powder coated with a binder metal, a binder metal-coated heavy metal powder compressively formed into a rigid body. The process of coating the heavy metal powder with a binder metal is understood by those skilled in the arts. The heavy metal powder, coated with binder metal, is then compressed under very high pressure into a rigid body. Presently, tungsten and lead are preferred for the heavy metal and binder metal coating, respectively, although the alternative metals described above may be used. Combinations of metals may also be used. Preferably, the percentage of tungsten in the liner is within a range of approximately 99.0% to 99.98% by weight, although percentages within a range of approximately 90.0% to 99.98% may be used. The percentage of lead in the mixture is preferably within a range of approximately 0.02% to 1.0% by weight, although percentages within a range of approximately 0.2% to 10.0% may optionally be used.
  • An additional alternative embodiment of the invention uses a [0020] liner 26, which is constructed of a combination of the elements of the first two embodiments described. That is, a mixture of heavy metal powder and powdered binder metal may be used in combination with binder metal-coated heavy metal powder to construct the liner 26. The same proportions and variations in ingredients described with reference to the first two embodiments may be employed with this additional embodiment as well.
  • The invention has many advantages attendant with raising the percentage of heavy metal in the liner to higher levels than have been known in the art. [0021]
  • The embodiments shown and described above are only exemplary. Many details are often found in the art such as: types of high explosives, size and shape of shaped charges, and configuration of perforating gun assemblies. Therefore, many such details are neither shown nor described. It is not claimed that all of the details, parts, elements, or steps described and shown were invented herein. Even though numerous characteristics and advantages of the present inventions have been set forth in the foregoing description, together with details of the structure and function of the inventions, the disclosure is illustrative only, and changes may be made in the detail, especially in matters of shape, size and arrangement of the parts within the principles of the inventions to the full extent indicated by the broad general meaning of the terms used in the attached claims. [0022]
  • The restrictive description and drawings of the specific examples above do not point out what an infringement of this patent would be, but are to provide at least one explanation of how to make and use the inventions. The limits of the inventions and the bounds of the patent protection are measured by and defined in the following claims. [0023]

Claims (37)

What is claimed:
1. A liner for a shaped charge comprising:
a mixture of powdered heavy metal and powdered binder metal formed into a rigid body wherein
the percentage of heavy metal in the mixture is within a range of approximately 90.0% to 99.98% by weight.
2. A liner for a shaped charge according to claim 1 wherein
the heavy metal powder is chosen from the group consisting of tungsten, tantalum, hafnium, silver, gold, platinum, copper, or any mixture thereof.
3. A liner for a shaped charge according to claim 1 wherein
the heavy metal consists essentially of tungsten.
4. A liner for a shaped charge according to claim 1 wherein
the percentage of heavy metal in the mixture is within a range of approximately 99.0% to 99.98% by weight.
5. A liner for a shaped charge according to claim 1 wherein
the binder metal is chosen from the group consisting of copper, lead, zinc, tin, and bismuth.
6. A liner for a shaped charge according to claim 1 wherein
the binder metal consists essentially of lead.
7. A liner for a shaped charge according to claim 1 wherein
the mixture further comprises approximately 0.02% to 1.0% lubricant by weight.
8. A liner for a shaped charge according to claim 7 wherein
the lubricant comprises powdered graphite.
9. A liner for a shaped charge according to claim 7 wherein
the lubricant comprises oil.
10. A liner for a shaped charged according to claim 1 wherein
the percentage of heavy metal in the mixture is approximately 93.0%.
11. A liner for a shaped charge comprising:
heavy metal powder, coated with a binder metal, formed into a rigid body.
12. A liner for a shaped charge according to claim 11 wherein
the heavy metal powder is chosen from the group consisting of tungsten, tantalum, hafnium, platinum, silver, gold, copper, or any mixture thereof.
13. A liner for a shaped charge according to claim 11 wherein
the heavy metal comprises tungsten.
14. A liner for a shaped charge according to claim 11 wherein
the binder metal is chosen from the group consisting of copper, tin, zinc, lead, bismuth or any mixture thereof.
15. A liner for a shaped charge according to claim 11 wherein
the percentage of heavy metal in the heavy metal powder is within a range of approximately 90.0% to 99.98% by weight.
16. A liner for a shaped charge according to claim 11 wherein
the percentage of heavy metal in the heavy metal liner is approximately 93.0%.
17. A liner for a shaped charge according to claim 11 wherein
the percentage of heavy metal is within a range of approximately 99.0% to 99.98% by weight.
18. A liner for a shaped charge according to claim 11 wherein
the heavy metal powder, coated with binder metal, is mixed with approximately 0.02% -1.0% lubricant by weight.
19. A liner for a shaped charge according to claim 18 wherein
the lubricant comprises powdered graphite.
20. A liner for a shaped charge according to claim 18 wherein
the lubricant comprises oil.
21. A liner for a shaped charge comprising:
a mixture of powdered heavy metal, powdered metal binder, and a heavy metal powder coated with a binder metal formed into a rigid body.
22. A liner for a shaped charge according to claim 21 wherein
the rigid body is substantially conical.
23. A liner for a shaped charge according to claim 21 wherein
the rigid body is substantially conical.
24. A liner for a shaped charge according to claim 21 wherein
the rigid body is substantially conical.
25. A liner for a shaped charge according to claim 21 wherein
the percentage of heavy metal in the mixture is within a range of approximately 90.0% to 99.98% by weight.
26. A liner for a shaped charge according to claim 21 wherein
the percentage of heavy metal in the mixture is approximately 93.0%.
27. A liner for a shaped charge according to claim 21 wherein
the heavy metal powder is chosen from the group consisting of tungsten, tantalum, hafnium, silver, gold, platinum, copper, or any mixture thereof.
28. A liner for a shaped charge according to claim 21 wherein
the heavy metal consists essentially of tungsten.
29. A liner for a shaped charge according to claim 21 wherein
the percentage of heavy metal in the mixture is within a range of approximately 99.0% to 99.98% by weight.
30. A liner for a shaped charge according to claim 21 wherein
the binder metal is chosen from the group consisting of copper, lead, zinc, tin, and bismuth.
31. A liner for a shaped charge according to claim 21 wherein
the binder metal consists essentially of lead.
32. A liner for a shaped charge according to claim 21 wherein
the mixture further comprises approximately 0.02% to 1.0% lubricant by weight.
33. A liner for a shaped charge according to claim 21 wherein
the lubricant comprises powdered graphite.
34. A liner for a shaped charge according to claim 21 wherein
the lubricant comprises oil
35. A liner for a shaped charge according to claim 21 wherein
the mixture is compressively formed
36. A liner for a shaped charge according to claim 1 wherein
the mixture is compressively formed.
37. A liner for a shaped charge according to claim 11 wherein
the mixture is compressively formed.
US09/810,792 2001-03-16 2001-03-16 Oil well perforator liner with high proportion of heavy metal Abandoned US20020129726A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US09/810,792 US20020129726A1 (en) 2001-03-16 2001-03-16 Oil well perforator liner with high proportion of heavy metal
DE10296518T DE10296518T5 (en) 2001-03-16 2002-03-08 Oil well borehole feed with a high proportion of heavy metal
AU2002252234A AU2002252234A1 (en) 2001-03-16 2002-03-08 Heavy metal oil well perforator liner
CA002440306A CA2440306A1 (en) 2001-03-16 2002-03-08 Oil well perforator liner with high proportion of heavy metal
PCT/US2002/007028 WO2002075099A2 (en) 2001-03-16 2002-03-08 Heavy metal oil well perforator liner
MXPA03008304A MXPA03008304A (en) 2001-03-16 2002-03-08 Oil well perforator liner with high proportion of heavy metal.

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US09/810,792 US20020129726A1 (en) 2001-03-16 2001-03-16 Oil well perforator liner with high proportion of heavy metal

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US20020129726A1 true US20020129726A1 (en) 2002-09-19

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AU (1) AU2002252234A1 (en)
CA (1) CA2440306A1 (en)
DE (1) DE10296518T5 (en)
MX (1) MXPA03008304A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014193416A1 (en) * 2013-05-31 2014-12-04 Halliburton Energy Services, Inc. Shaped charge liner with nanoparticles
US9862027B1 (en) * 2017-01-12 2018-01-09 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
US9897425B1 (en) * 2016-08-15 2018-02-20 The United States Of America As Represented By The Secretary Of The Army Painted shear liner/density gradient liner
US10739115B2 (en) 2017-06-23 2020-08-11 DynaEnergetics Europe GmbH Shaped charge liner, method of making same, and shaped charge incorporating same
US20220074288A1 (en) * 2019-01-16 2022-03-10 Halliburton Energy Services, Inc. Shaped charge utilizing polymer coated petn
DE112013007812B3 (en) 2013-05-31 2023-05-17 Halliburton Energy Services, Inc. Shaped charge insert with nanoparticles

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613370A (en) * 1983-10-07 1986-09-23 Messerschmitt-Bolkow Blohm Gmbh Hollow charge, or plate charge, lining and method of forming a lining
US5567906A (en) * 1995-05-15 1996-10-22 Western Atlas International, Inc. Tungsten enhanced liner for a shaped charge
US5963776A (en) * 1994-07-06 1999-10-05 Martin Marietta Energy Systems, Inc. Non-lead environmentally safe projectiles and method of making same
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
US6634300B2 (en) * 2000-05-20 2003-10-21 Baker Hughes, Incorporated Shaped charges having enhanced tungsten liners

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613370A (en) * 1983-10-07 1986-09-23 Messerschmitt-Bolkow Blohm Gmbh Hollow charge, or plate charge, lining and method of forming a lining
US5963776A (en) * 1994-07-06 1999-10-05 Martin Marietta Energy Systems, Inc. Non-lead environmentally safe projectiles and method of making same
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
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
US6634300B2 (en) * 2000-05-20 2003-10-21 Baker Hughes, Incorporated Shaped charges having enhanced tungsten liners

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WO2014193416A1 (en) * 2013-05-31 2014-12-04 Halliburton Energy Services, Inc. Shaped charge liner with nanoparticles
DE112013007812B3 (en) 2013-05-31 2023-05-17 Halliburton Energy Services, Inc. Shaped charge insert with nanoparticles
US12083592B2 (en) 2013-05-31 2024-09-10 Halliburton Energy Services, Inc. Shaped charge liner with nanoparticles
US9897425B1 (en) * 2016-08-15 2018-02-20 The United States Of America As Represented By The Secretary Of The Army Painted shear liner/density gradient liner
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
US10739115B2 (en) 2017-06-23 2020-08-11 DynaEnergetics Europe GmbH Shaped charge liner, method of making same, and shaped charge incorporating same
US20220074288A1 (en) * 2019-01-16 2022-03-10 Halliburton Energy Services, Inc. Shaped charge utilizing polymer coated petn

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AU2002252234A1 (en) 2002-10-03
AU2002252234A8 (en) 2002-10-03
CA2440306A1 (en) 2002-09-26
MXPA03008304A (en) 2004-02-17

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