IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0858955
(2007-09-21)
|
등록번호 |
US-8156871
(2012-04-17)
|
발명자
/ 주소 |
- Behrmann, Lawrence A.
- Yang, Wenbo
|
출원인 / 주소 |
- Schlumberger Technology Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
14 인용 특허 :
19 |
초록
▼
A liner for a shaped charge is disclosed which comprises a plurality of portions, where at least one portion is composed of powder materials. In one embodiment, the liner comprises two portions that are composed of different powder materials, while alternative embodiments of the liner comprise three
A liner for a shaped charge is disclosed which comprises a plurality of portions, where at least one portion is composed of powder materials. In one embodiment, the liner comprises two portions that are composed of different powder materials, while alternative embodiments of the liner comprise three portions or four portions. When the shaped charge is used in a perforating gun, reactive powder materials may be added to the plurality of portions of the liner to optimize the penetration or the enhancement of the perforating tunnel.
대표청구항
▼
1. A liner for a shaped charge, the shaped charge comprising: a jacket having a cavity for receiving explosive material therein;a liner being disposed in the jacket to engage and retain the explosive material in the jacket;a first layer of the liner having an outer surface directly engaging the expl
1. A liner for a shaped charge, the shaped charge comprising: a jacket having a cavity for receiving explosive material therein;a liner being disposed in the jacket to engage and retain the explosive material in the jacket;a first layer of the liner having an outer surface directly engaging the explosive material, said first layer having an inner surface;a second layer of the liner positioned along and abutting the entire inner surface of the first layer, said second layer completely shielded from the explosive material by the first layer;a first portion of the first layer including—a first powder metal; anda second portion of the second layer including a second powder metal that has a different molecular composition than the first portion. 2. The liner of claim 1, wherein the second portion approximates a jet segment and the first portion approximates a slug segment. 3. The liner of claim 2, wherein the powder material of the first portion and the second portion each comprise a single material or any combination of materials selected from the group consisting of aluminum, copper, lead, tin, bismuth, tungsten, iron, lithium, sulfur, tantalum, zirconium, boron, niobium, titanium, cesium, zinc, magnesium, selenium, tellurium, manganese, nickel, molybdenum, and palladium. 4. The liner of claim 2, wherein the particle size distribution of the powder materials in the first portion and the second portion are each selected to achieve a more uniform detonation wavefront, and wherein the particle size of the powder materials in the second portion is selected to achieve a more stable (reduced transverse velocity) jet. 5. The liner of claim 4, wherein the jet portion of the liner comprises reactive powder materials. 6. The liner of claim 4, wherein the slug portion of the liner comprises reactive powder materials. 7. The liner of claim 1, wherein the first portion of the liner comprises solid material. 8. The liner of claim 1, wherein the second portion of the liner comprises a solid material and wherein the first portion comprises powder materials. 9. The liner of claim 1, wherein the second layer of the liner comprises a third portion that has a composition that is different than the other portions, where each portion comprises powder materials. 10. The liner of claim 9, wherein the powder materials for each of the three portions each have a different composition, each different composition of powder materials comprising a single material or a combination of materials selected from the group consisting of copper, lead, tin, bismuth, tungsten, iron, lithium, sulfur, tantalum, zirconium, boron, niobium, titanium, cesium, zinc, magnesium, selenium, tellurium, manganese, nickel, molybdenum, and palladium. 11. The liner of claim 10, wherein the liner comprises a slug portion and a jet portion, wherein a particle size of the powder materials in the slug portion is selected to achieve a uniform detonation wavefront, and where the particle size of the powder materials in the jet portion is selected to achieve a uniform jet. 12. The liner of claim 10, wherein the third portion of the liner and the second portion of the liner are each designed to comprise the jet segment of the liner, and the first portion is designed to comprise the slug portion. 13. The liner of claim 10, wherein the liner is for use in a shaped charge. 14. The liner of claim 10, wherein the liner further comprises reactive powder materials in the jet portion. 15. The liner of claim 14, wherein the powder materials for each of the three portions comprise a single material or a combination of materials selected from the group consisting of aluminum, copper, lead, tin, bismuth, tungsten, iron, lithium, sulfur, tantalum, zirconium, boron, niobium, titanium, cesium, zinc, magnesium, selenium, tellurium, manganese, nickel, molybdenum, and palladium. 16. The liner of claim 10, wherein the liner further comprises reactive powder materials in the slug portion. 17. The liner of claim 1, wherein the liner comprises a fourth portion that has a composition that is different than the first portion, the second portion and the third portion, where at least one of the portions comprises a solid material and the other three portions comprise powder materials. 18. The liner of claim 1, wherein the liner includes: an outer surface of the second layer engaged against the first layer;an inner surface of the second layer;a third layer of the liner;a third layer of the liner positioned along the entire inner surface of the second liner; anda third portion of the third layer including a third powder metal that has a different molecular composition than the first portion and the second portion. 19. A liner for a shaped charge, the shaped charge comprising a jacket having a cavity for receiving explosive material and said liner being disposed in the jacket to retain the explosive material in the jacket, the liner comprising a first layer adjacent the explosive material, said first layer having a first portion, a second layer adjacent the first layer portion opposite and completely shielded from the explosive material by the first layer, said second layer having a second portion and a third portion, each of the portions having a different molecular composition than the others, where at least the first portion and the second portion are composed of powder metal materials that have different powder metal molecular compositions than the other. 20. The liner of claim 19, wherein each portion comprises powder materials. 21. The liner of claim 20, wherein the powder materials for each of the three portions comprise a single material or any combination of materials selected from the group consisting of aluminum, copper, lead, tin, bismuth, tungsten, iron, lithium, sulfur, tantalum, zirconium, boron, niobium, titanium, cesium, zinc, magnesium, selenium, tellurium, manganese, nickel, molybdenum, and palladium. 22. The liner of claim 21, wherein the liner comprises a slug portion and a jet portion, wherein the particle size distribution of the powder materials in the slug portion and the jet portion is selected to achieve a uniform detonation wavefront, and wherein the particle size of the powder materials in the jet portion is selected to achieve a stable (reduced transverse velocity) jet. 23. The liner of claim 21, wherein the third portion and the second portion of the liner are each designed to comprise the jet portion of the liner, and the first portion is designed to comprise the slug portion of the liner. 24. The liner of claim 21, wherein the third portion and the second portion of the liner are each designed to comprise the slug portion of the liner, and the first portion is designed to comprise the jet portion of the liner. 25. The liner of claim 21, wherein the liner is for use in a shaped charge.
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