Oil sand slurry transportation system and method for variable slurry flow rates

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United States of America Patent

PATENT NO 9525375
APP PUB NO 20140367966A1
SERIAL NO

14470696

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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Patent Owner(s)

  • SUNCOR ENERGY INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Odegard, Mark L Edmonton, CA 2 3

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