Drag reduction of asphaltenic crude oils
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United States of America Patent
Stats
-
Oct 10, 2017
Issued Date -
N/A
app pub date -
Aug 12, 2011
filing date -
Dec 22, 2006
priority date (Note) -
In Force
status (Latency Note)
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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.
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International Classification(s)
- 2011 Application Filing Year
- C09K Class
- 1857 Applications Filed
- 1322 Patents Issued To-Date
- 71.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C09K Class
- 24.18 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 10, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 10, 2029 |
