Automated method for quality control and quality assurance of sized bridging material
US8813585B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Aug 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0641
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for quality control and quality assurance of sized bridging materials rotates a control sample having a fluid portion and a solids portion of sized bridging materials in a tubular container for a predetermined period of time. The control sample is then analyzed in a laser particle size analyzer to determine a particle size distribution for the control sample. A wet grinding sample having a fluid portion and a solids portion of the sized bridging materials is then rotated in the tubular container with a loose cylinder rod for a predetermined time to simulate borehole conditions. The wet grinding sample is then analyzed in the laser particle size analyzer to determine a particle size distribution for the wet grinding sample. The two particle size distributions are used to define a shift factor that represents the relative strength of the sized bridging materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.