Downhole closed-loop magnetostrictive sensing element for downhole applications
US10007016B2 · kind B2 · utility
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3References
26Claims
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Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole closed-loop magnetostrictive sensor includes a magnetic field generating member and a waveguide operatively connected to the magnetic field generating member. At least one of the waveguide and the magnetic field generating member is responsive to a parameter being sensed. A sensor is operatively connected to the waveguide, and a housing includes a chamber enclosing the magnetic field generating member, the waveguide and the sensor. The housing is configured and disposed to withstand a downhole environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.