IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0296741
(2011-11-15)
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등록번호 |
US-8602112
(2013-12-10)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Halliburton Manufacturing & Services Limited
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
2 |
초록
▼
There is herein defined a control apparatus operable to control the opening and closing of downhole flow control devices. The apparatus includes first and second indexing modules, which are arranged in fluid communication with a respective downhole control device. Each of the modules includes two in
There is herein defined a control apparatus operable to control the opening and closing of downhole flow control devices. The apparatus includes first and second indexing modules, which are arranged in fluid communication with a respective downhole control device. Each of the modules includes two inlet ports and two outlet ports, where the inlet ports are each in fluid communication with one of two control lines. The first module is operable to open and close a first downhole control device on application of fluid pressure through the first control line and the second module is operable to open and close a second downhole control device on application of fluid pressure through the second control line.
대표청구항
▼
1. A control apparatus for a downhole flow control device, the apparatus being operable to control opening and closing of a downhole flow control device: the apparatus comprising first and second modules, wherein each module is operable to fluidly connect with a respective downhole control device:ea
1. A control apparatus for a downhole flow control device, the apparatus being operable to control opening and closing of a downhole flow control device: the apparatus comprising first and second modules, wherein each module is operable to fluidly connect with a respective downhole control device:each module comprises two inlet ports and two outlet ports;wherein one inlet port of each module is adapted to fluidly communicate with a first control line located above and the other inlet port of each module is adapted to fluidly communicate with a second control line located above;the first module being operable to open and close a first downhole control device on application of fluid pressure through the first control line; andthe second module being operable to open and close a second downhole control device on application of fluid pressure through the second control line;wherein each module comprises a switching member defining a fluid flow path and under application of fluid pressure from one of the first or second control line the switching member is operable to direct fluid pressure to one of the two outlet ports to activate opening one of the first or second downhole flow control device, and under application of fluid pressure from the one of the first or second control line the switching member is operable to direct fluid pressure to the other of the two outlet ports to activate closing the one of the first or second downhole flow control device. 2. The control apparatus according to claim 1, wherein the first and second modules are capable of independently and remotely activating the first and second downhole flow control devices. 3. The control apparatus according to claim 1, wherein remote activation means are used to remotely activate the two downhole flow control devices. 4. The control apparatus according to claim 1, wherein, in use, the first control line provides an operational control line operable to remotely activate the first downhole flow control device and the second control line provides an operational control line operable to remotely activate the second downhole flow control device and wherein the first and second control lines provide first and second return lines for the second downhole flow control device and the first downhole flow control device, respectively. 5. The control apparatus according to claim 4, wherein the first return line provided by the first control line is adapted to provide feedback indicating activation of the second downhole flow control device and/or the second return line provided by the second control line is adapted to provide feedback indicating activation of the first downhole flow control device. 6. The control apparatus according to claim 4, wherein each module comprises a piston member adapted to translate axially in one direction under application of fluid pressure from the operational control line and wherein the piston member is biased to translate axially in an opposite direction on removal of the application of fluid pressure. 7. The control apparatus according to claim 4, wherein the switching member is adapted to rotate, turn or twist under application of fluid pressure to the fluid flow path from the operational control line. 8. The control apparatus according to claim 7, wherein each increment diverts a flow path through the switching member to one of the two outlet ports. 9. The control apparatus according to claim 7, wherein rotation in one direction diverts a flow path through the switching member to one outlet port and rotation in the opposite direction diverts the flow path to the other outlet port. 10. The control apparatus according to claim 7, wherein applied fluid pressure within a predetermined range is operable to activate rotation of the switching member, and the predetermined range is determined based on an opening pressure of the downhole flow control device. 11. The control apparatus according to claim 4, wherein each module comprises a unidirectional flow valve capable of being adapted to be in fluid communication with the fluid flow path in fluid communication with the operational control line. 12. The control apparatus according to claim 4, wherein the switching member is adapted to rotate at least a portion of a full rotation. 13. The control apparatus according to claim 12, wherein at least a portion of a full rotation comprises: a full rotation;one or more increments of a full rotation;a full rotation in half turn increments; ora first rotation in one direction and a second rotation in an opposite direction about its axis. 14. The control apparatus according claim 1, wherein the switching member comprises one or more guiding slots. 15. The control apparatus according to claim 14, wherein an engaging member adapted as part of a piston member is adapted to engage with the one or more guiding slots. 16. The control apparatus according to claim 15, wherein the one or more guiding slots comprise at least an axial section and an angular section. 17. The control apparatus according to claim 15, wherein the one or more guiding slots comprise at least an angular section. 18. The control apparatus according to claim 17, wherein the switching member is operable to rotate when, in use, the engaging member follows a path defined by the angular section of the one or more guiding slots. 19. The control apparatus according claim 1 further comprising a unidirectional valve in fluid communication with the fluid flow path and/or comprising a closed loop hydraulic circuit. 20. The control apparatus according claim 1, wherein activation to open and close the first downhole flow control device is independent of activation to open and close the second downhole flow control device. 21. The control apparatus according to claim 1, wherein the apparatus comprises: a first indexing module comprising a first and second inlet port, and a first and second outlet port; the first inlet port being in fluid communication with a first control line and the second inlet port being in fluid communication with a second control line; the outlet ports being in fluid communication with their respective flow control device such that when fluid pressure is applied via the respective control line and directed to the respective outlet port of the outlet ports then the respective flow control device is capable of moving to a first open or closed position. 22. The control apparatus according to claim 1, wherein the first and second modules are adapted for connection to the first and second control lines above the first and second downhole flow control devices. 23. The control apparatus according to claim 1, wherein activation of each downhole flow control device is capable of being controlled by a flow path through each of the modules, and wherein the flow path is capable of being defined by the switching member. 24. A method of opening and closing a downhole flow control device using a control apparatus, the method comprising: providing an apparatus comprising first and second modules, wherein each module is operable to fluidly connect with a respective downhole control device:each module comprises two inlet ports and two outlet ports;wherein one inlet port of each module is adapted to fluidly communicate with a first control line located above and the other inlet port of each module is adapted to fluidly communicate with a second control line located above;the first module being operable to open and close a first downhole flow control device on application of fluid pressure through the first control line; andthe second module being operable to open and close a second downhole flow control device on application of fluid pressure through the second control line;wherein each module comprises a switching member defining a fluid flow path and under application of fluid pressure from one of the first or second control line the switching member is operable to direct fluid pressure to one of the two outlet ports to activate opening one of the first or second downhole flow control device, and under application of fluid pressure from the one of the first or second control line the switching member is operable to direct fluid pressure to the other of the two outlet ports to activate closing the one of the first or second downhole flow control device. 25. The method of opening and closing a downhole flow control device according to claim 18, wherein the first module comprises first and second inlet ports and first and second outlet ports, the first and second outlet ports being in fluid communication with the first downhole flow control device such that the switching member of the first module is operable to direct fluid pressure from the first control line via the first inlet port to the first outlet port to activate the first downhole flow control device to a first open position and to the second outlet port to activate the first downhole flow control device to a first closed position,the second module comprises third and fourth inlet ports and third and fourth outlet ports, the third and fourth outlet ports being in fluid communication with the second downhole flow control device such that the switching member of the second module is operable to direct fluid pressure from the second control line via the third inlet port to the third outlet port to activate the second downhole flow control device to a second open position and to the fourth outlet port to activate the second downhole hole control device to a second closed position, andthe first inlet port and the fourth inlet port are adapted to fluidly communication the first control line, and the second inlet port and the third inlet port are adapted to fluidly communication the second control line.
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