Methods of cementing a wellbore without using a spacer fluid with an alkyl end-capped ethoxylated fatty alcohol
US11268010B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
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Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of cementing a wellbore includes injecting into the wellbore a non-aqueous fluid; injecting into the wellbore a cement slurry and a non-ionic surfactant composition after injecting the non-aqueous fluid; and allowing the cement slurry to set, wherein the non-ionic surfactant composition comprises an alkyl end-capped ethoxylated fatty alcohol, a chain extended non-ionic surfactant, or a combination comprising at least one of the foregoing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.