Energy efficient pipeline transportation of heavy oil - A novel static device to stabilize and re-establish core annular flow

Ekta Tayal, Subhabrata Ray, Sayan Halder, Chirodeep Bakli and Gargi Das

Energy, 2025, vol. 331, issue C

Abstract: Decline in availability of lighter crude have led to the focus on transportation and utilization of heavier oils having substantially high viscosity (few 100-10,000 cP). Water lubricated pipeline transportation using core annular flow (CAF) configuration has long been attempted to reduce the pumping energy. However, this method has not gained much popularity, primarily due to the difficulties in maintaining stable CAF over long distance horizontal pipelines. In particular, CAF gets disrupted after passing through pipe fittings. The fraction of water required to ensure stable CAF should also be minimum for reducing the load on downstream dewatering and related facilities.

Keywords: Core annular flow; High viscous oil; Pressure drop reduction; Energy-efficient pipeline transportation; Water cut (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:331:y:2025:i:c:s0360544225026696

DOI: 10.1016/j.energy.2025.137027

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