Cementing composition with controlled mechanical properties
US7470322B2 · kind B2 · utility
3Cited by
11References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 27, 2004 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | May 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cement composition for which the mechanical properties of the set cement can be controlled independently of the slurry density, both at high density (>16 ppg) and at low density (<12 ppg) comprises a trimodal blend of particulate materials present as fine, medium and coarse particule size fractions, the particulate materials including cement, flexible particles, and a filler, characterized in that the cement comprises the fine particle size fraction, and the flexible particles and filler comprise the medium and large particle size fractions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.