Flexible cementing compositions and methods for high-temperature wells
US7402204B2 · kind B2 · utility
11Cited by
15References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 18, 2004 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Jul 15, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/0031
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A well cementing composition comprises an hydraulic cement and flexible, acrylonitrile-butadiene copolymer particulate material. A method of cementing a well comprises mixing the composition with sufficient water, and optionally, other additives to form a pumpable slurry, and pumping the slurry into the well and allowing it to set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.