IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0817369
(2001-03-21)
|
발명자
/ 주소 |
- Patterson, Michael L.
- Foret, Richard J.
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출원인 / 주소 |
- Halliburton Energy Services, Inc.
|
대리인 / 주소 |
Smith, Marlin R.Konneker, J. Richard
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인용정보 |
피인용 횟수 :
9 인용 특허 :
5 |
초록
▼
An explosive system is disclosed which may be used in repair of damaged casing. In a described embodiment, an explosive system includes a flexible elongated tubular container with a liquid explosive disposed within the container. As an alternative, the liquid explosive may be flowed into a wellbore
An explosive system is disclosed which may be used in repair of damaged casing. In a described embodiment, an explosive system includes a flexible elongated tubular container with a liquid explosive disposed within the container. As an alternative, the liquid explosive may be flowed into a wellbore without being retained within a container. The liquid explosive is detonated in the wellbore, thereby fragmenting the damaged casing and forcing it out into a formation surrounding the wellbore.
대표청구항
▼
1. An explosive system, comprising: a flexible elongated tubular container; and a liquid explosive disposed within the container, the container, and the liquid explosive disposed therein, being positioned in a damaged portion of a subterranean well casing string, the damaged portion restrictin
1. An explosive system, comprising: a flexible elongated tubular container; and a liquid explosive disposed within the container, the container, and the liquid explosive disposed therein, being positioned in a damaged portion of a subterranean well casing string, the damaged portion restricting access through the casing string. 2. The explosive system according to claim 1, further comprising a plug inserted at least partially into a lower end of the container, the plug preventing loss of the liquid explosive from the container lower end. 3. The explosive system according to claim 2, wherein the plug includes at least one external groove, and further comprising a clamp biasing the container lower end toward the groove. 4. The explosive system according to claim 2, wherein the plug includes a housing and a weight material, the weight material having a density greater than that of the housing. 5. The explosive system according to claim 4, wherein the housing separates the liquid explosive from contact with the weight material. 6. The explosive system according to claim 1, wherein the liquid explosive comprises nitro methane. 7. The explosive system according to claim 1, further comprising a housing attached to an upper end of the container, the housing permitting the liquid explosive to be poured therethrough into the container. 8. The explosive system according to claim 7, further comprising a fluid retainer disposed in the housing, the retainer substantially retaining the liquid explosive in the container, but permitting venting of the liquid explosive from the container. 9. The explosive system according to claim 7, wherein the housing includes at least one external groove, and further comprising a clamp biasing the container upper end toward the groove. 10. The explosive system according to claim 1, wherein the container includes an impermeable layer for preventing passage of the liquid explosive therethrough, and a damage resistant layer for preventing damage to the impermeable layer, the damage resistant layer being outwardly disposed relative to the impermeable layer. 11. The explosive system according to claim 10, wherein the impermeable layer is formed of a rubber material. 12. The explosive system according to claim 10, wherein the damage resistant layer is formed of a selected one of a woven and a braided material. 13. The explosive system according to claim 10, wherein the damage resistant layer is formed of a nylon material. 14. The explosive system according to claim 1, further comprising a tubular string attached to the container. 15. The explosive system according to claim 1, further comprising a detonating device disposed in the liquid explosive within the container. 16. The explosive system according to claim 15, wherein the detonating device is positioned approximately midway between opposite ends of the container. 17. The explosive system according to claim 15, wherein the detonating device is positioned a substantial portion of a length of the container away from an upper end of the container. 18. The explosive system according to claim 15, wherein the detonating device is electrically initiated. 19. The explosive system according to claim 18, wherein the detonating device is electrically initiated via a line extending to a remote location.
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