Storable liquid systems for use in cementing oil and gas wells
US6173778A · kind A · utility
104Cited by
56References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | May 27, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00112
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Storable cement slurries utilize a carrageenan suspending agent to provide stable slurries under conditions of high pH and calcium ion content. These cement slurries may be utilized for, among other things, cementing applications involving oil and gas wells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.