Drag reduction of asphaltenic crude oils
US8022118B2 · kind B2 · utility
13Cited by
29References
11Claims
0Family size
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Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Dec 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.