Selective electrical activation of downhole tools
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-034/06
E21B-041/00
G01V-011/00
출원번호
US-0948267
(2013-07-23)
등록번호
US-9482072
(2016-11-01)
발명자
/ 주소
Fripp, Michael L.
Walton, Zachary W.
Murphree, Zachary R.
Kyle, Donald G.
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Locke Lord LLP
인용정보
피인용 횟수 :
0인용 특허 :
72
초록▼
A method of activating a tool can include displacing a device in the tool, the device transmitting energy to a receiver of the tool, thereby activating the tool, and the transmitting including a control circuitry increasing electrical current flow between an electrical power source and a transmitter
A method of activating a tool can include displacing a device in the tool, the device transmitting energy to a receiver of the tool, thereby activating the tool, and the transmitting including a control circuitry increasing electrical current flow between an electrical power source and a transmitter in response to a sensor detecting a predetermined stimulus downhole. A system can include a tool including a receiver and an electrical load, and a device which displaces relative to the tool, the device including a transmitter, a sensor and an electrical power source. Another method can include displacing a device in a tubular string including multiple downhole tools, each including a receiver and an electrical load, and the device including a transmitter and a sensor. The transmitter transmits energy to at least one of the receivers in response to sensor detection of a predetermined number of the tools traversed by the device.
대표청구항▼
1. A method of activating a downhole tool in a subterranean well, the method comprising: displacing a device in the downhole tool, the device transmitting energy to a receiver of the downhole tool, thereby activating the downhole tool; andwherein transmitting includes a control circuitry of the devi
1. A method of activating a downhole tool in a subterranean well, the method comprising: displacing a device in the downhole tool, the device transmitting energy to a receiver of the downhole tool, thereby activating the downhole tool; andwherein transmitting includes a control circuitry of the device increasing electrical current flow between an electrical power source of the device and a transmitter of the device in response to a sensor of the device detecting a predetermined stimulus downhole, wherein the sensor includes a magnetic field sensor and wherein the predetermined stimulus includes a magnetic field produced by an indicator mounted in a plug that includes a pressure barrier having a lower magnetic permeability than a housing of the downhole tool into which the plug is secured. 2. The method of claim 1, wherein the power source is independent of any electrical source external to the device. 3. The method of claim 1, wherein the predetermined stimulus comprises a predetermined number of other downhole tools traversed by the device. 4. The method of claim 3, wherein each of the other downhole tools includes a respective receiver which can receive energy from the device transmitter. 5. The method of claim 1, wherein the transmitter transmits at least one of the group consisting of electromagnetic energy, kinetic energy, and thermal energy. 6. The method of claim 1, wherein the transmitter transmits energy to the receiver only after the sensor detects the predetermined stimulus downhole. 7. The method of claim 1, wherein the activating comprises causing an actuator to actuate the downhole tool. 8. The method of claim 1, wherein the receiver comprises multiple differently oriented antennae. 9. The method of claim 1, wherein the transmitter comprises multiple differently oriented antennae. 10. A system for use with a subterranean well, the system comprising: at least one downhole tool including a receiver and an electrical load; anda device which displaces relative to the downhole tool, the device including a transmitter, a sensor, and an electrical power source independent of any power source external to the device, wherein the transmitter transmits energy to the receiver in response to detection by the sensor of a predetermined stimulus in the well, wherein the sensor includes a magnetic field sensor and wherein the predetermined stimulus includes a magnetic field produced by an indicator mounted in a plug that includes a pressure barrier having a lower magnetic permeability than a housing of the downhole tool into which the plug is secured. 11. The system of claim 10, wherein the at least one downhole tool comprises multiple downhole tools, and wherein the predetermined stimulus comprises a predetermined number of the downhole tools traversed by the device. 12. The system of claim 11, wherein each of the downhole tools includes a respective one of the receiver which can receive energy from the device transmitter. 13. The system of claim 10, wherein the transmitter transmits at least one of the group consisting of electromagnetic energy, kinetic energy, and thermal energy. 14. The system of claim 10, wherein the device further comprises control circuitry which controls whether the transmitter transmits the energy to the receiver. 15. The system of claim 10, wherein the electrical load comprises an actuator which actuates the downhole tool. 16. The system of claim 10, wherein the receiver comprises multiple differently oriented antennae. 17. The system of claim 10, wherein the transmitter comprises multiple differently oriented antennae. 18. A method of activating at least one of multiple downhole tools in a subterranean well, the method comprising: displacing a device in a tubular string including the downhole tools, each downhole tool including a receiver and an electrical load, and the device including a transmitter and a sensor; andthe transmitter transmitting energy to at least one of the receivers in response to detection by the sensor of a predetermined number of the downhole tools traversed by the device, wherein the sensor includes a magnetic field sensor and wherein each of the downhole tools includes an indicator producing a magnetic field, wherein the indicator is mounted in a plug that includes a pressure barrier having a lower magnetic permeability than a housing of the downhole tool into which the plug is secured. 19. The method of claim 18, wherein the electrical load comprises an actuator, and wherein the at least one of the downhole tools is actuated in response to the at least one of the receivers receiving the energy from the transmitter. 20. The method of claim 18, wherein the transmitter transmits at least one of the group consisting of electromagnetic energy, kinetic energy, and thermal energy. 21. The method of claim 18, wherein the device further comprises control circuitry which controls whether the transmitter transmits the energy to the at least one of the receivers, and which is displaced in the tubular string as part of the device. 22. The method of claim 18, wherein each receiver comprises multiple differently oriented antennae. 23. The method of claim 18, wherein the transmitter comprises multiple differently oriented antennae.
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