Oil sand slurry transportation system and method for variable slurry flow rates
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United States of America Patent
Stats
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Dec 20, 2016
Grant Date -
Dec 18, 2014
app pub date -
Aug 27, 2014
filing date -
Dec 3, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is a system for transporting an oil sand slurry, comprising a pump, upstream and downstream lines, a shaft connectable to the pump, a driving mechanism driving the pump and a regulator for regulating the torque applied to the shaft between positive and negative torque modes, to pump the slurry at higher or lower flow rates. Also provided is a method comprising pumping the slurry through a pipeline using a pump driven by a motorized shaft and adjusting the flow rate of the slurry by varying the torque applied to the motorized shaft between positive and negative torque modes. The oil sand slurry transportation system and method enable positive head (regular pump action) for normal and high flow rates and negative head (pump brake action) for low flow rates, which reduces system energy loss, pipeline wear, vapor breakout and sanding off.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- H02K Class
- 2148 Applications Filed
- 1788 Patents Issued To-Date
- 83.25 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- H02K Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 20, 2028 |
