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原油物性对容积式流量计 准确度的影响

Positive displacement rheometer is a commonly-used instrument for the measurement of traded crude oil.Measurement errors are not only related to the precision of the rheometer itself,but also largely concerned with the nature of measured medium.Drawing on the fact that physical properties of crude oil have considerably affected the accuracy of oil flow measurement in the He-Shi oil pipeline,this essay argues that crude oil′s physical properties such as viscosity,wax content,dewaxing point have great effects on the accuracy of oil flow measurement.Finally the essay highlights the importance of calibration operation of on line oil measurement by displacement rheometers in the exchanged measurements of crude oil.
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