Well cementing method using a dispersant and fluid loss intensifier
US5105885A · kind A · utility
86Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Nov 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/46
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A fluid loss and dispersant intensifier and method are shown for use in cementing oil and gas well bores. The intensifier includes an ethoxylate and a sulfonated dispersant type material. The intensifier package provides effective fluid loss control without adversely affecting the viscosity of the cement slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.