Fixed-wavelength fiber optic telemetry for casing collar locator signals
US10954777B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
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Key dates
| Filing date | Feb 29, 2016 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Aug 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool, in some embodiments, comprises a casing collar locator (CCL) to generate a signal that indicates the presence of a casing discontinuity; and a modulator, coupled to the CCL, to modulate fixed-wavelength light in a fiber optic cable based on said signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.