IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0356625
(2012-01-23)
|
등록번호 |
US-8291826
(2012-10-23)
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발명자
/ 주소 |
- Wuensche, Thomas J.
- Barker, James
- Moritz, Gayle
|
출원인 / 주소 |
- Halliburton Energy Services, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
15 |
초록
▼
A detonator assembly is provided. The detonator assembly comprises a deflagration to detonation transition body, a first thermally stable secondary explosive contained by the body, and a bulkhead coupled to the deflagration to detonation transition body. The bulkhead contains pressure within the bod
A detonator assembly is provided. The detonator assembly comprises a deflagration to detonation transition body, a first thermally stable secondary explosive contained by the body, and a bulkhead coupled to the deflagration to detonation transition body. The bulkhead contains pressure within the body associated with firing the detonator assembly at least until a transition from a deflagration operation mode of the detonator assembly to a detonation operation mode of the detonator assembly has occurred. A second thermally stable secondary explosive may alternatively be included in the deflagration to detonation transition body, either separated from the first thermally stable secondary explosive or mixed with the first thermally stable secondary explosive. The detonator assembly comprises effectively no primary explosive.
대표청구항
▼
1. A detonator assembly, comprising: a deflagration to detonation transition body;an initiator coupled to a first end of the deflagration to detonation transition body;a first thermally stable secondary explosive disposed within the deflagration to detonation transition body; anda bulkhead coupled t
1. A detonator assembly, comprising: a deflagration to detonation transition body;an initiator coupled to a first end of the deflagration to detonation transition body;a first thermally stable secondary explosive disposed within the deflagration to detonation transition body; anda bulkhead coupled to the deflagration to detonation transition body that contains pressure within the body associated with firing the detonator assembly at least until a transition from a deflagration operation mode of the detonator assembly to a detonation operation mode of the detonator assembly has occurred,wherein the detonator assembly comprises effectively no primary explosive. 2. The detonator assembly of claim 1, further comprising a second thermally stable secondary explosive disposed adjacent a second end of the deflagration to detonation transition body, wherein the first thermally stable secondary explosive is disposed between the initiator and the second thermally stable secondary explosive. 3. The detonator assembly of claim 2, further comprising a cup disposed adjacent the second end, wherein the second thermally stable secondary explosive is disposed in the cup. 4. The detonator assembly of claim 1, wherein an interior chamber defined by the deflagration to detonation transition body tapers over at least a portion of a deflagration to detonation transition body length. 5. The detonator assembly of claim 4, wherein the interior chamber tapers from the first end to a second end. 6. The detonator assembly of claim 4, wherein the interior chamber tapers in a linear, curved, parabolic, or stair-stepped configuration. 7. The detonator assembly of claim 1, wherein the bulkhead comprises a subassembly. 8. A detonator assembly, comprising: a deflagration to detonation transition body;an initiator coupled to a first end of the deflagration to detonation transition body;a booster assembly coupled to a second end of the deflagration to detonation transition body;a first thermally stable secondary explosive disposed within the deflagration to detonation transition body, wherein the first thermally stable secondary explosive is disposed between the initiator and the booster assembly; anda bulkhead coupled to the deflagration to detonation transition body,wherein the detonator assembly comprises effectively no primary explosive. 9. The detonator assembly of claim 8, wherein the booster assembly comprises a second thermally stable secondary explosive. 10. The detonator assembly of claim 8, further comprising a material comprising a mixture of the first thermally stable secondary explosive and a second thermally stable secondary explosive, wherein the mixture is in contact with the first thermally stable secondary explosive. 11. The detonator assembly of claim 10, wherein the material is disposed within the deflagration to detonation transition body between the first thermally stable secondary explosive and the booster assembly. 12. The detonator assembly of claim 11, further comprising a pyrotechnic material, wherein the pyrotechnic material is disposed within the deflagration to detonation transition body between the initiator and the first thermally stable secondary explosive. 13. The detonator assembly of claim 8, wherein the first thermally stable secondary explosive further comprises a non-explosive material. 14. The detonator assembly of claim 13, wherein the non-explosive material comprises a polymer, a wax, a binder, or a combination thereof. 15. The detonator assembly of claim 8, further comprising a metal powder contained within the deflagration to detonation transition body, wherein the metal powder is mixed with the first thermally stable secondary explosive. 16. The detonator assembly of claim 8, further comprising a delay column disposed within the deflagration to detonation body between the initiator and first thermally stable secondary explosive. 17. A method of activating an explosive comprising: activating an explosive in a detonator assembly comprising a first thermally stable secondary explosive in a deflagration mode using an initiator in communication with the first thermally stable secondary explosive, wherein the detonator assembly comprises a deflagration to detonation transition body, a bulkhead coupled to the deflagration to detonation transition body, and wherein the detonator assembly comprises effectively no primary explosive;retaining a pressure associated with the deflagration mode in contact with the first thermally stable secondary explosive; andgenerating a detonation in response to the retained pressure. 18. The method of claim 17, wherein the explosive comprises: a first layer comprising a first thermally stable secondary explosive,a second layer comprising a mixture of the first thermally stable secondary explosive and a second thermally stable secondary explosive, anda third layer comprising the second thermally stable secondary explosive, wherein the second layer is disposed between the first layer and the third layer in a deflagration to detonation body. 19. The method of claim 17, further comprising detonating a detonating cord using the generated detonation. 20. The method of claim 19, further comprising: transferring the detonation to at least one explosive charge using the detonated detonating cord;detonating the at least one explosive charge; andcreating at least one perforation in a wellbore using the at least one explosive charge.
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