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A Simplified Model for the Prediction of the Erosion of a Metal Screen for Sand Control
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作者 baocheng shi Ruomeng Ying +4 位作者 Lijuan Wu Jianpeng Pan Xingkai Zhang Kai Liu Yindi Zhang 《Fluid Dynamics & Materials Processing》 EI 2021年第3期667-682,共16页
In oil drilling processes,sand production in the oil layer is a common issue,generally mitigated by means of sand control screens.To prevent or reduce the risk of damage of these screens and to improve the related ser... In oil drilling processes,sand production in the oil layer is a common issue,generally mitigated by means of sand control screens.To prevent or reduce the risk of damage of these screens and to improve the related service life,it is necessary to investigate the related erosion dynamics.In this study,a screen mesh model based on the flow field similarity theory is proposed to overcome the otherwise too complex geometric structure of this type of equipment.Such model is optimized using experimental data.The predicted results are in good agreement with the measured values,and the error is less than 15%.The results also show that the simplified geometric screen model and the optimized Zhang et al.erosion model have high reliability;therefore,they could effective be used to select underground screen meshes and improve the design of production process. 展开更多
关键词 Metal sand control screen erosion model life prediction numerical simulation
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液固两相离心泵内固体颗粒对液相湍流调制的测试方法及机理 被引量:5
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作者 史宝成 魏进家 +3 位作者 邱伊婕 沈秋婉 张兴凯 张引弟 《科学通报》 EI CAS CSCD 北大核心 2018年第11期1050-1061,共12页
固液两相离心泵的性能和效率受控于泵内的两相流动规律,理解泵内的两相流动规律和磨蚀机理,对于合理设计和延长泵的使用寿命具有重要意义.以离心泵内的固液两相流为研究对象,通过搭建无搅拌固液两相流PIV测试平台,消除高速搅拌对泵内流... 固液两相离心泵的性能和效率受控于泵内的两相流动规律,理解泵内的两相流动规律和磨蚀机理,对于合理设计和延长泵的使用寿命具有重要意义.以离心泵内的固液两相流为研究对象,通过搭建无搅拌固液两相流PIV测试平台,消除高速搅拌对泵内流场的影响,改进颗粒-流体的两相循环方式,提高了实验的测试精度;通过POD方法分析低固相浓度时泵的性能改善的原因,探寻固体颗粒对泵内液相湍流的调制机理.进一步补充和完善固液两相流水动力学理论体系,为指导固液两相流高效的工业应用提供理论基础. 展开更多
关键词 液固两相流动 PIV测试 流动特性 湍流调制
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