Chloride-free set accelerated cement compositions and methods
US5127955A · kind A · utility
11Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1990 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Oct 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/46
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Chloride-free set accelerated cement compositions and methods of using the compositions for cementing conduits in well bores are provided. The compositions are comprised of hydraulic cement, sufficient water to form a pumpable slurry and a chloride-free set accelerator selected from trihydroxybenzoic acid, disodium dihydroxybenzenedisulfonate or derivatives of such compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.