Apparatus for testing a shear thickening plugging fluid
US5717131A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for testing a shear thickening plugging fluid that is an emulsion of two components which react with each other to provide a thickening of the fluid when subjected to high stress, such apparatus comprising a cylinder (1) having an inlet (2) with an inlet valve (3) for the plugging fluid and an outlet (4) with an outlet valve (5) for the plugging fluid, a moveable piston (6) sealing against the chamber walls, so that the piston by being moved rearward in the cylinder can suck plugging fluid into the cylinder through the inlet (2), and in a retrograde movement can press the plugging fluid out through the outlet (4), a shear valve (7) connected with the outlet (4), which shear valve (7) is adjustable for adjusting a desired shear stress to be subjected upon the plugging fluid, a means (8, 9) for measuring the pressure drop over the shear valve (7), a receiver means (10) for collecting plugging fluid that has been pressed through the shear valve, and one or more means for measuring properties of the shear thickening plugging fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.