Foaming of set-delayed cement compositions comprising pumice and hydrated lime
US9328281B2 · kind B2 · utility
15Cited by
66References
20Claims
0Family size
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Key dates
| Filing date | Sep 20, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Jun 7, 2034 |
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.