Method of removing calcareous or siliceous deposits or scales
US8211836B2 · kind B2 · utility
3Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2010 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Aug 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/933
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The productivity of hydrocarbons from hydrocarbon-bearing calcareous or siliceous formations is enhanced by contacting the formation with a well treatment composition which contains a hydrofluoric acid source, a boron containing compound and a phosphonate acid, ester or salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.