Foaming of set-delayed cement compositions comprising pumice and hydrated lime
US9828541B2 · kind B2 · utility
3Cited by
75References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Apr 13, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A variety of methods and compositions are disclosed, including, in one embodiment a method a cementing in a subterranean formation comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; foaming the set-delayed cement composition; activating the set-delayed cement composition; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation. Additional methods, foamed set-delayed cement composition, and systems for cementing are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.