Low temperature hydrocarbon gel
US8513166B2 · kind B2 · utility
2Cited by
24References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Aug 23, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/64
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (−)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.