Foamed well cementing compositions and methods
US5133409A · kind A · utility
96Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Dec 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Foamed well cementing compositions and methods of performing cementing operations in salt containing subterranean environments are provided. The compositions are comprised of hydraulic cement, salt water, dispersed gas and a foaming agent selected from the group consisting of surfactants of the formula R--(OR').sub.n --OSO.sup.-.sub.3 X.sup.+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.