Fluid loss additives for cement slurries
US7140440B2 · kind B2 · utility
14Cited by
125References
62Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Jun 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and methods of making cement compositions containing proportioned fluid loss control additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.