Viscosifier agent for oilfield fluids in hard conditions
US10550313B2 · kind B2 · utility
0Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Oct 29, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to aviscosifier useful for oilfield fluids, especially high TDS fluids and heavy brines, comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.