High strength foamed well cement compositions and methods
US6220354A · kind A · utility
49Cited by
19References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 24, 2000 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Oct 24, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/473
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
High strength foamed well cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. The foamed well cement compositions are basically comprised of a hydraulic cement, hydrophilic fibers, water sufficient to form a pumpable slurry, a mixture of foaming and foam stabilizing surfactants and sufficient gas to foam the slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.