Well proppants
US11613691B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Feb 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Deployable smart acoustic resonance particles have dense cores, compliant matrixes surrounding the cores and stiff outer shells surrounding the matrixes. The particles have mechanical stress sensitivities that provide unique band gap shifts when compressed. Groups of similar particles with similar stress sensitivities and similar band gap shifts are added at different times to hydraulic fluids, as circulated through wells with the fluid and pushed into fractures. A plural, sonic monopole well logging tool is lowered into the well to determine locations and depth of fractures and local pressures by distinct resonance of individual groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.