Petroleum Science >2026,??Issue5:??2863-2884 DOI: https://doi.org/10.1016/j.petsci.2026.01.043
Gas-solid two-phase flow erosion of needle throttle valve in shale gas field based on CFD-DEM model Open?Access
文章信息
作者：Bing-Yuan Hong, Zhe Wu, Yan-Bo Li, Yu Meng, Yue Su, Wei-Dong Li, Bai-Kang Zhu, Xian-Lei Chen, Wei-Qiang Wang, Dai-Wei Liu
作者单位：
投稿时间：
引用方式：Hong, B.Y., Wu, Z., Li, Y.B., et al., 2026. Gas-solid two-phase flow erosion of needle throttle valve in shale gas field based on CFD-DEM model. Petrol. Sci. 23 (5), 2863–2884. https://doi.org/10.1016/j.petsci.2026.01.043.
文章摘要
Needle throttle valve (NTV) is a key equipment to ensure the safe production of shale gas fields, but it is often seriously eroded by the solid particles in the produced gas. At this work, the CFD-DEM coupling calculation method is adopted to investigate the internal flow field characteristics and the erosion rate of each component of the NTV under gas-solid two-phase flow. The accuracy of the numerical model is validated by the comparison results of simulation and experiment. The results show that with the increase of particle diameter, the maximum erosion rate of each part of the valve generally increases. When valve opening degree (VOD) is equal to 0.5, it has the best effect on suppressing erosion rates at high flow velocity. There is a “vulnerable zone” of the spool cone that is not affected by the changes in particle diameter and VOD, which occupies 2/3 of the height of the spool cone. This work not only predicts the vulnerable zone of each component of the valve, but also reveals the erosion mechanism of the NTV, and can provide a reference for the design and maintenance of the valve.
关键词
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Shale gas field; Needle throttle valve; Gas-solid two-phase flow; Particle flow erosion; CFD-DEM coupling calculation