Fluid property sensors
US7434457B2 · kind B2 · utility
46Cited by
10References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2002 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Jun 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02818
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Micro-Electro Mechanical Systems (MEMS) based fluid sensors adapted to measure physical properties of oilfield reservoir fluids under downhole conditions. Certain embodiments of the invention may be characterized as a MEMS based reservoir fluid sensor adapted for downhole conditions having a planar member machined from a substrate material, an electrical conductor formed at least partly on the planar member; and a gauge formed on the planar member and adapted to measure a physical effect on the planar member, the physical effect being indicative of a property of a fluid in contact with the planar member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.