IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0684516
(2010-01-08)
|
등록번호 |
US-8141639
(2012-03-27)
|
발명자
/ 주소 |
- Gartz, Jeffrey David
- Hansen, Garret William
- Lesiuk, Robert Michael Frederick
|
출원인 / 주소 |
|
대리인 / 주소 |
Mossman, Kumar & Tyler PC
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
6 |
초록
▼
An apparatus for use in dispensing fluid into a wellbore includes a piston element releasably coupled to a housing and a detonator in the housing that applies a force sufficient to release the piston element from the housing when activated. The apparatus also has an intermediate section that mates w
An apparatus for use in dispensing fluid into a wellbore includes a piston element releasably coupled to a housing and a detonator in the housing that applies a force sufficient to release the piston element from the housing when activated. The apparatus also has an intermediate section that mates with the upper section, an elongated member coupled to the piston and that is positioned in a bore of the intermediate section; and a lower section having a housing that mates with the intermediate section. The housing includes at least one opening providing communication between a bore of the housing and an exterior of the housing; and a movable barrier in the lower section. The movable barrier has a first position, wherein the barrier substantially blocks communication between the bore of the intermediate section and the at least one opening, and a second position, wherein the barrier does not substantially block communication between the bore of the intermediate section and the at least one opening.
대표청구항
▼
1. An apparatus for activating a wellbore tool, comprising: an upper section having a housing;a piston element releasably coupled to the housing;a detonator in the housing that applies a force sufficient to release the piston element from the housing when activated;an intermediate section having a f
1. An apparatus for activating a wellbore tool, comprising: an upper section having a housing;a piston element releasably coupled to the housing;a detonator in the housing that applies a force sufficient to release the piston element from the housing when activated;an intermediate section having a first end matable with the upper section and having a bore;an elongated member having a first end coupled to the piston and a second end, the elongated member being at least partially positioned in the bore of the intermediate section;a lower section having a housing matable with a second end of the intermediate section, the housing including at least one opening providing communication between a bore of the housing and an exterior of the housing; anda movable barrier in the lower section that has a first position, wherein the barrier substantially blocks communication between the bore of the intermediate section and the at least one opening, and a second position, wherein the movable barrier does not substantially block communication between the bore of the intermediate section and the at least one opening, wherein the piston element, the elongated member, and the movable barrier are connected and move in unison. 2. The apparatus according to claim 1, wherein the elongated member is substantially rigid, and wherein the piston member and the elongated member are configured to hold the movable barrier stationary until the detonator is activated. 3. The apparatus according to claim 1, wherein the elongated member includes at least two segments. 4. The apparatus according to claim 1, wherein the intermediate section is formed of at least two modules. 5. The apparatus according to claim 1, wherein the detonator is configured to detonate in response to an electrical signal. 6. The apparatus according to claim 1, further comprising a frangible member connecting the piston member to the upper section housing. 7. The apparatus according to claim 1, further comprising a detonator block configured to receive the detonator, wherein the piston member sealingly mates with the detonator block. 8. The apparatus according to claim 1, further comprising: a conveyance device coupled to the upper section. 9. The apparatus according to claim 8, wherein the conveyance device is a wireline. 10. The apparatus according to claim 9, further comprising: a controller configured to transmit a firing signal to the detonator via the wireline. 11. A method for activating a wellbore tool, comprising: conveying the wellbore tool into a wellbore, the tool having: an upper section having a housing;a piston element releasably coupled to the housing;a detonator in the housing that applies a force sufficient to release the piston element from the housing when activated;an intermediate section having a first end matable with the upper section and having a bore;an elongated member having a first end coupled to the piston and a second end, the elongated member being at least partially positioned in the bore of the intermediate section;a lower section having a housing matable with a second end of the intermediate section, the housing including at least one opening providing communication between a bore of the housing and an exterior of the housing;a movable barrier in the lower section that has a first position, wherein the barrier substantially blocks communication between the bore of the intermediate section and the at least one opening, and a second position, wherein the barrier does not substantially block communication between the bore of the intermediate section and the at least one opening, wherein the piston element, the elongated member, and the movable barrier are connected and move in unison; andactivating the detonator. 12. The method according to claim 11, further comprising transmitting an electrical signal to detonate the detonator. 13. The method according to claim 11, further de-coupling the piston member from the upper section housing after detonation of the detonator. 14. The method according to claim 11, wherein a detonator block receives the detonator, further comprising sealingly mating the piston member with the detonator block. 15. An apparatus for activating a wellbore tool, comprising: a tool having a bore and at least one opening providing communication between the bore of the housing and an exterior of the housing, the bore being configured to store a selected material;a piston element disposed in the tool bore, the piston element being connected to the tool with at least one frangible element;a explosive detonator in the tool configured to at least partially disintegrate the at least one frangible element when activated;a rod disposed in the tool bore, the rod having a first end coupled to the piston element and a second end; anda movable disk connected to the second end of the rod, wherein the piston element and the rod hold the disk stationary against a weight of the selected material, wherein the disk substantially blocks flow of the material through the at least one opening in a first position and allows the material to flow out of the at least one opening in a second position. 16. The apparatus according to claim 15, wherein the rod is substantially rigid. 17. The apparatus according to claim 15, wherein the piston element, the rod, and the disk move in unison from the fist position to the second position. 18. The apparatus according to claim 15, wherein the disk substantially occludes the bore of the tool. 19. The apparatus according to claim 18, wherein the disk is uphole of the at least one opening in the first position and downhole of the at least one opening in the second position.
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