The Erosion Characteristics of a Needle Throttle Valve with Multiple Placement Schemes in a Shale Gas Field Based on CFD-DEM
2025
Zhe Wu | Yangfan Lu | Min Liu | Fubin Wang | Yingying Wang | Shengnan Du | Weiqiang Wang | Bingyuan Hong
Shale gas is a low-carbon unconventional natural gas resource. The development of shale gas helps to optimize the energy structure and reduce carbon emissions. However, the needle throttle valves (NTVs) commonly used in shale gas fields are usually severely eroded by solid particles. Based on the method of CFD-DEM coupling calculation, this paper constructs a gas&ndash:solid two-phase flow erosion model of the NTV and studies the influence of different placement methods, valve opening degrees, and other factors on particle movement and valve erosion. This research found that the spool is the area of the valve that is most severely eroded, and when placed horizontally, it has a serious &lsquo:bias wear&rsquo: phenomenon. The research results herein can provide references for the design optimization and on-site maintenance of valve performance.
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