Cementing compositions and application of such compositions for cementing oil wells or the like
US6902001B2 · kind B2 · utility
57Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Nov 8, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2201/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides cementing compositions for oil wells or the like comprising an hydraulic binder and reinforcing particles constituted by a flexible material of low compressibility, and with an average grain size of less than 500 microns. The compositions of the invention are of particular advantage when cementing zones which are subjected to extreme dynamic stresses, such as perforation zones and the junctions of a multi-branch lateral well. They are also highly suitable for producing plugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.