Cementing wells with crack and shatter resistant cement
US6308777A · kind A · utility
43Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/343
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Improved cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. In accordance with the methods, a crack and shatter resistant cement composition is introduced into a subterranean zone by way of the well bore penetrating it comprised of a hydraulic cement, sufficient hydrophilic fibers to make the cement composition crack and shatter resistant upon setting and sufficient water to form a pumpable slurry. Thereafter, the cement composition is allowed to set in the subterranean zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.