发明申请
WO2020185682A1 DOWNHOLE MONITORING USING FEW-MODE OPTICAL FIBER BASED DISTRIBUTED ACOUSTIC SENSING
审中-公开
基本信息:
- 专利标题： DOWNHOLE MONITORING USING FEW-MODE OPTICAL FIBER BASED DISTRIBUTED ACOUSTIC SENSING
- 申请号：PCT/US2020/021717 申请日：2020-03-09
- 公开(公告)号：WO2020185682A1 公开(公告)日：2020-09-17
- 发明人： HVEDING, Frode , ASHRY, Islam , YUAN, Mao , BIN ALIAS, Mohd Sharizal , OOI, Boon Siew , ARSALAN, Muhammad
- 申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY , KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
- 申请人地址： 1 Eastern Avenue 31311 Dhahran SA
- 专利权人： SAUDI ARABIAN OIL COMPANY,ARAMCO SERVICES COMPANY,KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
- 当前专利权人： SAUDI ARABIAN OIL COMPANY,ARAMCO SERVICES COMPANY,KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
- 当前专利权人地址： 1 Eastern Avenue 31311 Dhahran SA
- 代理机构： BRUCE, Carl E. et al.
- 优先权： US16/299,918 20190312
- 主分类号： G01H9/00
- IPC分类号： G01H9/00 ; G02B6/02 ; G01V1/22 ; G01V1/40
摘要：
The subject matter of this specification can be embodied in, among other things, a method for removing intermodal distortion that includes receiving a collection of distorted backscattered Rayleigh signals from a collection of modes of an optical fiber, where the collection of distorted backscattered Rayleigh signals are distorted by an intermodal coupling among the collection of modes, receiving a collection of distortion parameters that are descriptive of distortion effects of the intermodal coupling, and determining an undistorted backscattered Rayleigh signal based on the collection of distorted backscattered Rayleigh signals and the collection of distortion parameters.
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01H | 机械振动或超声波、声波或次声波的测量 |
| ------G01H9/00 | 应用对辐射敏感的装置，例如光学装置，测量机械振动或超声波、声波或次声波 |