Light weight high temperature well cement compositions and methods
US6488763B2 · kind B2 · utility
273Cited by
27References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Oct 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/49
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides methods of cementing subterranean zones using cement compositions comprising calcium aluminate, fly ash, sodium polyphosphate and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.