Cementing composition and application thereof to cementing oil wells or the like
US6656266B1 · kind B1 · utility
24Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Sep 20, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B24/2623
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cementing compositions which are particularly suitable for squeeze cementing operations, comprise an aqueous phase, and a micro-cement, the aqueous phase including an aqueous suspension comprising a vinyl acetate type polymer obtained by chemically cross-linking a polyvinyl compound, a nanolatex and an anionic surfactant with a cloud point of more than 80° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.