Salt water stable latex cement slurries
US7576042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2006 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Apr 15, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/467
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of servicing a wellbore comprising preparing a cement slurry by premixing at least one latex, at least one stabilizer, and optionally water to form a homogeneous solution, further mixing the homogeneous solution with an ionic compound, cement, and optionally additional water to form the slurry, and placing the slurry in the wellbore. A method of stabilizing latex in cement slurry containing saltwater, comprising premixing the latex with a stabilizer until a homogenous solution forms prior to contacting the latex with the saltwater. A cement slurry comprising a latex, a stabilizer, a cement, an ionic compound, and water wherein the latex and stabilizer are contacted prior to contact of the latex with the ionic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.