| 发明名称 |
USE OF BRAGG GRATINGS WITH COHERENT OTDR |
| 摘要 |
An interferometer and a method of monitoring a downhole environment are described. The interferometer includes a coherent light source to emit pulses of light on a fiber, and a plurality of reflectors arranged on the fiber to reflect light from the coherent light source, each of the plurality of reflectors comprising broad band fiber Bragg gratings (FBGs), the fiber being rigidly disposed within a cable that is rigidly attached in the downhole environment. The interferometer also includes a processor to process a reflection signal resulting from the light reflected by two or more of the plurality of reflectors. |
| 申请公布号 |
US2015146209(A1) |
申请公布日期 |
2015.05.28 |
| 申请号 |
US201414525341 |
申请日期 |
2014.10.28 |
| 申请人 |
Childers Brooks A.;Duncan Roger Glen |
发明人 |
Childers Brooks A.;Duncan Roger Glen |
| 分类号 |
G01D5/26;E21B47/00 |
主分类号 |
G01D5/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An interferometer, the interferometer comprising:
a coherent light source configured to emit pulses of light in a fiber; a plurality of reflectors arranged in the fiber and configured to reflect light from the coherent light source, each of the plurality of reflectors comprising broad band fiber Bragg gratings (FBGs), the fiber being rigidly disposed within a cable that is rigidly attached in a downhole environment; and a processor configured to process a reflection signal resulting from the light reflected by two or more of the plurality of reflectors. |
| 地址 |
Christiansburg VA US |
