Method of contacting hydrocarbon-bearing formations with fluorinated ether compositions
US8629089B2 · kind B2 · utility
26Cited by
215References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jul 24, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/88
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method comprising contacting a hydrocarbon-bearing formation with a composition comprising solvent and a fluoropolyether compound, wherein the fluoropolyether compound comprises at least one first divalent unit represented by formula: Each Rf is independently selected from the group consisting of Rfa—(O)t—CHL′-(CF2)n—; [Rfa—(O)t—C(L)H—CF2)—O]m—W—; Rfb—O—(CF2)p-; F(CkF2k)—(O—CkF2K(p—O—CF2—; and CF3—O—(CF2)3—OCF(CF3)—CF2)z—O-L1-. Treated hydrocarbon-bearing formations are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.