Method and apparatus for field measurement of interfacial tension between immiscible fluids
US4196615A · kind A · utility
21Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Jun 29, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2013/0275
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tensiometer apparatus for use in the field, for instance at the site of an oil well, for measuring the interfacial tension between two immiscible fluids, for instance oil and water, wherein a droplet of one fluid is caused to move under the force of gravity through the second fluid and a characteristic of the droplet is determined by measuring the change the droplet causes in capacitance of one or more capacitors as the droplet moves through the second fluid. The determined characteristic is then converted by calibration means to interfacial tension between the fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.