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首页> 外文期刊>Journal of natural gas science and engineering >Experiment and numerical simulation of sand particle erosion under slug flow condition in a horizontal pipe bend
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Experiment and numerical simulation of sand particle erosion under slug flow condition in a horizontal pipe bend

机译：水平管弯管下的砂颗粒侵蚀的实验与数值模拟

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摘要

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 degrees and 90 degrees and at the circumferential angle of the elbow between 45 degrees and 90 degrees. The erosion profiles of the pipe wall are dominated by three particle collision mechanisms, namely, micro-cutting, plowing and impact deformation.
机译：沙子侵蚀是石油和天然气场开发的常见问题。 设计了实验设施，用于研究夹子流下管弯的沙子腐蚀。 可拆卸的试验管弯曲设计用于在每个实验之前和之后测量管道弯曲的36个离散位置的重量损失。 开发了基于计算的流体动力学（CFD）腐蚀预测方法，以进一步了解侵蚀。 分析了气体和液体分布，砂运动和侵蚀谱之间的关系以解释侵蚀机制。 管弯的最严重的侵蚀区域发生在肘部的轴向角度在67.5度和90度之间，并且在肘部的圆周角度在45度和90度之间。 管壁的腐蚀型材由三种颗粒碰撞机构构成，即微切，犁和冲击变形。

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