Cement having stress-indicating properties
US10620065B2 · kind B2 · utility
1Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/0218
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method measures subterranean stress. The system and method includes a cement mixture that is mixed with water to set as a solid and a stress measuring-medium having piezospectroscopic properties that directly reveals stress in situ within the cement mixture in response to a photo stimulation. The stress measuring-medium combines with the cement mixture as a dry blend before being combined with water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.