Low-density cement compositions, density-reducing additives, and methods of use
US7510609B2 · kind B2 · utility
4Cited by
37References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2005 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jan 30, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Density-reducing additives comprising low-density particulates, and cement compositions comprising such additives, are provided. In one embodiment, the present invention provides a cement composition comprising: a cement component; a density-reducing additive comprising particulates that comprise an agglomerating material; and a base fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.