Preparation of hydrocarbon gels from ferric sources, polycarboxylic acid compounds, and optional amines, in combination with phosphate esters
US5647900A · kind A · utility
28Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1996 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Nov 1, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to improved hydrocarbon gels which find use in the fracturing of petroleum producing formations. In particular it relates to the use of a define class of gelling agents for hydrocarbons which provide excellent results in such fracturing. The gelling agents comprise combinations of (1) selected orthophosphate esters and (2) a composition comprising a source of ferric ions, an amine, and a polycarboxylic acid or salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.