Resin coated proppant particle and method of making the same
US10435625B2 · kind B2 · utility
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29Claims
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Key dates
| Filing date | Dec 15, 2017 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 15, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A particle with an environmentally friendly resin coating having very low levels of leachable compounds is disclosed. The water leachable phenolic content of the coated particle is low enough to eliminate problems with leaching of phenol or its derivatives into an aquifer during downhole applications. Processes for fully and partially coating the particle with the resin coating are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.