Optical fiber system and method for wellhole sensing of magnetic permeability using diffraction effect of faraday rotator
US7413011B1 · kind B1 · utility
67Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Dec 26, 2007 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Dec 26, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0322
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods for optically determining casing collar and/or corrosion locations within boreholes, using the diffraction effect of Faraday crystals through which depolarized continuous light is transmitted within optical fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.