Disperse non-polyalphaolefin drag reducing polymers
US7888407B2 · kind B2 · utility
2Cited by
44References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Apr 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drag reducing composition comprising at least one non-polyalphaolefin polymer having an average particle size in the range of from about 5 to about 800 micrometers. The non-polyalphaolefin polymer can initially be formed via emulsion polymerization. The initial polymer particles can then be at least partially consolidated and then reduced in size and suspended in a carrier fluid. The resulting drag reducing composition can be added to a hydrocarbon-containing fluid to decrease the pressure drop associated with the turbulent flow of the hydrocarbon-containing fluid through a conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.