Rheological measurement of filtercake
US8215155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jan 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0676
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rheometer is provided for measuring rheological properties of a filtercake. The rheometer comprises a cell for containing a pressurised fluid supporting a particulate suspension. The cell has two outlets for removing the fluid from the cell. The cell further has a respective foraminous body at each outlet, such that the particulate suspension forms a filtercake on a surface of each foraminous body as pressurised fluid filters through the body when the fluid passes from the cell to the respective outlet. The foraminous bodies are translatable relative to each other, such that the filtercakes formed on said surfaces can be approached to form a unified filtercake. The foraminous bodies are also rotatable relative to each other. The rheometer further comprises a torque sensor for measuring a torque required to rotate the foraminous bodies relative to each other. The measured torque is indicative of one or more rheological properties of the unified filtercake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.