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Experiment and numerical simulation of sand particle erosion under slug flow condition in a horizontal pipe bend
Journal of Natural Gas Science and Engineering ( IF 3.841 ) Pub Date : 2020-01-21 , DOI: 10.1016/j.jngse.2020.103175
Wenshan Peng; Xuewen Cao; Jian Hou; Kun Xu; Yin Fan; Shaohua Xing

Sand erosion is a common problem in oil and gas field development. An experimental facility was designed and used to study the sand erosion of pipe bend under slug flow. A detachable test pipe bend was designed to measure the weight loss at 36 discrete locations on the pipe bend before and after each experiment. A Computational Fluid Dynamics (CFD) based erosion prediction method was developed to get a further understanding of the erosion. The relationships among the gas and liquid distribution, the sand movement and the erosion profile were analyzed to explain the erosion mechanism. The most severe erosion area of the pipe bend occurs at the axial angle of the elbow between 67.5° and 90° and at the circumferential angle of the elbow between 45° and 90°. The erosion profiles of the pipe wall are dominated by three particle collision mechanisms, namely, micro-cutting, plowing and impact deformation.

更新日期:2020-01-21

 

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