Rheological characterization of Alaska heavy oils
Heavy crude oil reserves from the North Slope of Alaska are highly viscous, biodegraded oils that make standard oil production methods ineffective. A matrix of 18 mixtures with varying sand and water contents encompass the properties likely to be seen during production, especially cold production methods. Physical properties of the Alaska heavy oils were studied by viscosity measurements, including small amplitude shear tests and flow tests in a temperature range of -10oC to 60oC. The viscosity was observed to decrease with increasing temperature and displayed shear thinning. The activation ...
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