Drag reduction of asphaltenic crude oils
US9784414B2 · kind B2 · utility
2Cited by
47References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2011 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Aug 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a drag reducing polymer which is to be added to a liquid hydrocarbon. The liquid hydrocarbon has an asphaltene content of at least about 3 weight percent and an API gravity of less than about 26°. The drag reducing polymer can comprise the residues of a monomer having at least one heteroatom. Treatment of the liquid hydrocarbon with the drag reducing polymer allows a reduction in pressure drop associated with turbulent flow of the liquid hydrocarbon through a conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.