Method for removing deposits comprising heavy hydrocarbonaceous materials and finely divided inorganic materials from a flow line using a surfactant composition
US6234183A · kind A · utility
11Cited by
57References
3Claims
0Family size
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Key dates
| Filing date | Jul 10, 2000 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jul 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/929
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and composition for removing deposits of heavy hydrocarbonaceous materials and finely divided inorganic particulate matter from wellbore and flowline surfaces using a composition containing an alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.