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The effects of SKO on Assam crude oil
Robidas Bondita,Gogoi Subrata Borgohain 한국유변학회 2022 Korea-Australia rheology journal Vol.34 No.2
The energy demand for crude oil (CO) has increased globally which encourages the growth in the petroleum industry worldwide. When CO is transported through a pipeline over long distances, due to the change in environmental circumstances, the fl ow behavior of CO also changes. To improve the flowability of CO through the pipeline, a better understanding of the rheological behavior of CO is very important. In this paper, several experiments were conducted to improve the flowability of CO through pipeline transportation. Dilution of CO with its products like Superior Kerosene Oil (SKO) was selected as it improves the CO flowability through the pipeline and is economically aff ordable. In this study, the effect of SKO on o API gravity, Pour Point, Gel Point, Viscosity Gravity Constant, and rheological parameters were studied for the CO of Upper Assam Basin, Assam. SKO was mixed with CO in diff erent ratios to examine the eff ect of SKO on it. The results obtained showed that with the addition of SKO, o API increases, the minimum limit of attaining paraffi nic nature of CO samples can be determined, heavier CO may not always have high Pour Point and Gel Point. The variation in yield stress of CO with SKO was also observed. Hershel-Buckley Model (HBM) was used and from the three parameters of HBM, the shear-thinning or shear thickening behavior of CO was determined. Therefore, this paper attempts to study the fl ow behavior of CO and also to identify the % of SKO required for improving their fl owability through the pipeline.
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