Long distance high power optical laser fiber break detection and continuity monitoring systems and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-007/14
G01M-005/00
G01M-011/00
출원번호
US-0403723
(2012-02-23)
등록번호
US-9267330
(2016-02-23)
발명자
/ 주소
Rinzler, Charles C.
Gray, William C.
Faircloth, Brian O.
Zediker, Mark S.
출원인 / 주소
FORO ENERGY, INC.
대리인 / 주소
Fahrenbach, Brian
인용정보
피인용 횟수 :
1인용 특허 :
313
초록▼
A monitoring and detection system for use on high power laser systems, long distance high power laser systems and tools for performing high power laser operations. In particular, the monitoring and detection systems provide break detection and continuity protection for performing high power laser op
A monitoring and detection system for use on high power laser systems, long distance high power laser systems and tools for performing high power laser operations. In particular, the monitoring and detection systems provide break detection and continuity protection for performing high power laser operations on, and in, remote and difficult to access locations.
대표청구항▼
1. A system for advancing a borehole in hard rock, the system comprising: a. a source of high power laser energy, the laser source capable of providing a laser beam having at least 20 kW of power;b. a laser bottom hole assembly;c. a high power optical fiber placing the laser bottom hole assembly in
1. A system for advancing a borehole in hard rock, the system comprising: a. a source of high power laser energy, the laser source capable of providing a laser beam having at least 20 kW of power;b. a laser bottom hole assembly;c. a high power optical fiber placing the laser bottom hole assembly in optical communication with the laser source thereby defining an operational beam path; the optical fiber having a length of at least about 1,000 feet; and,d. a means for monitoring and detecting a condition of the high power laser energy along the high power optical fiber and thereby along the operational beam path,wherein the means for monitoring and detecting comprises a plurality of light detecting devices that are distributed along the high power optical fiber and in optical proximity to the high power optical fiber,wherein the plurality of light detecting devices is capable of detecting light leaked from the high power optical fiber and sends a signature indicating a location and the condition of the high power optical fiber to a monitoring device via a monitoring fiber. 2. The system of claim 1. Wherein the operational beam path is at least about 5,000 feet long. 3. The system of claim 1, wherein the monitoring and detecting means comprises a leak detector associated with a fusion splice. 4. The system of claim 1, wherein the monitoring and detecting means comprises a plurality of light detecting devices, associated with a monitoring fiber, wherein the monitoring fiber is associated with an optical time-domain reflectometer (OTDR), whereby the light transmitted by a light detecting device is analyzed and correlated to a condition along the operation beam path. 5. The system of claim 1, wherein the monitoring device receives light transmitted by the plurality of light detecting devices, analyzes and correlates to the condition along the operation beam path. 6. The system of claim 5, wherein the light transmitted by the plurality of light detecting devices comprises high power laser back reflections. 7. The system of claim 1, wherein the monitoring and detecting means comprises a fiber splice and an optical slip ring (OSR) comprising a photodiode, and wherein the OSR is placed in close proximity to the fiber splice. 8. The system of claim 7, wherein the photodiode is electrically associated with the monitoring and detecting means via a signal wire. 9. The system of claim 1, wherein the monitoring and detecting means comprises a distributed temperature sensing fiber with sequential bragg gratings for monitoring temperatures along the operational beam path and detecting anomalies in the temperatures. 10. The system of claim 1, wherein the monitoring and detecting means comprise a fiber having gratings sequentially positioned along a length of the fiber, wherein the gratings are configured to collect light and transmit the collected light to the monitoring device to detect an anomaly prior to a failure. 11. The system of claim 1, wherein the plurality of light detecting devices are a plurality of backward reflection devices. 12. The system of claim 11, wherein the plurality of backward reflection devices are minors, gratings, and a combination of mirrors and gratings. 13. The system of claim 1, wherein the plurality of light detecting devices modulate or alter an optical signal to provide the unique signature. 14. The system of claim 1, wherein plurality of light detecting devices are disclosed at 100 foot intervals. 15. The system of claim 1, further comprises a cladding stripper device configured to remove light from a cladding of the high power optical fiber. 16. The system of claim 15, wherein the removed light is optically transmitted to the monitoring device via the monitoring fiber. 17. A system for monitoring an operational high power laser beam path associated with a high power laser drilling system, the system comprising: a. a monitoring fiber associated with a high power laser fiber;b. the monitoring fiber having a plurality of light detection devices positioned along the high power laser fiber and in optical proximity to the high power laser fiber; and,c. a monitoring device in optical association with the monitoring fiber;d. wherein high power laser beam is transmitted through the high power laser fiber to a high power laser tool, and wherein the plurality of light detection devices are capable of detecting light leaked from the high power laser fiber,wherein the plurality of light detection devices is optically associated with the monitoring device via the monitoring fiber and sends a signature indicating a location and the condition of the operational high power laser beam to the monitoring device via the monitoring fiber.
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