Apparatus for measurement of capillary pressure in a porous sample
US12320723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Sep 29, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/187
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A capillary pressure measurement device includes a centrifuge having a rotating apparatus adapted to hold porous media samples and to test the samples under centrifugal motion during rotation of the rotating apparatus. A fluid capture device disposed adjacent to each porous media sample receives fluid displaced from the sample due to centrifugal motion applied to the sample during rotation. A measurement system measures an amount of fluid displaced from the porous media samples by taking an image of a fluid meniscus in the fluid capture device. A position sensor determines a position of the fluid capture device and triggers a camera to take the image of the fluid meniscus when the fluid meniscus is in a field of view of the camera. The image of the fluid meniscus is processed to determine a fluid volume correlated to capillary pressure of the corresponding porous media sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.