Storable liquid cementitious slurries for cementing oil and gas wells
US5447197A · kind A · utility
139Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Jan 25, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the method of the invention, a storable hydraulically-active cementitious slurry is made and used to cement within subterranean foundations for oil and gas wells. The slurry is made from hydraulically-active, cementitious material suitable for oil field purposes and can be stored until needed. During storage, the slurry remains liquid. The slurry is activated when needed for cementing. After pumping the activated slurry into the wellbore, the set cement has properties acceptable for well cementing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.