Microfluidic oscillating tube densitometer for downhole applications
US9341059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2009 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/0875
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.