API油管接箍液固两相流体冲蚀数值模拟
Numerical Simulation of Erosion for API Round Thread Connection in a Solid-liquid Two-phase Flow
摘 要
采用射流试验得到了超级13Cr钢半经验预测模型,结合数值计算进行API油管接箍冲蚀模拟,得出了API油管接箍冲蚀速率分布规律。模拟结果表明,接箍凹槽内壁面冲蚀速率远小于油管内壁; 最大冲蚀速率产生于直冲壁面; 冲蚀速率随排量增加而增大,排量达到6 m3/min时冲蚀速率出现极大值点; 砂比40%时冲蚀影响最严重。
API油管
液固两相流体
冲蚀
数值模拟
thread connection
API tubing
solid-liquid two-phase flow
erosion
numerical simulation
Abstract
To predict the erosion of API round thread connection, the semi-empirical equation which getting from jet experiment was employed to make calculation. Then the flow characteristics in the connection of API round thread tube were simulated.It was suggested that the most serious erosion area was the forward-facing step(FWFS). The erosion rate increased with time and the maximum erosion rate occurred in the displacement of 6 m3/min and 40% volume fraction of solid.
中图分类号 TG174
所属栏目 试验研究
基金项目 国家重大科技专项(2011ZX05046-04);陕西省教育厅项目(11JK0871);塔里木油田公司项目(H13015);西安石油大学全日制硕士研究生创新基金(2012cx110420)
收稿日期 2013/8/4
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备注程嘉瑞,硕士研究生,从事过程设备的腐蚀、防损与延寿技术的研究,
引用该论文: CHENG Jia-rui,YANG Xiang-tong,LI Zhen,DOU Yi-hua,TONG Shao-kai. Numerical Simulation of Erosion for API Round Thread Connection in a Solid-liquid Two-phase Flow[J]. Corrosion & Protection, 2013, 34(12): 1067
被引情况:
【1】邵 东,王建文, "煤液化弯管冲蚀磨损的数值模拟研究",腐蚀与防护 37, 424-429(2016)
【2】陈志静,郭福平, "基于FLUENT的重整加热炉集合管防腐蚀结构优化",腐蚀与防护 36, 775-778(2015)
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参考文献
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【2】张智,施太和,周理志,等. 油气田开发过程中的流场诱导腐蚀[J]. 石油钻探技术,2007,35(3): 79.
【3】CHONG Y W,CHRISTOPPHER S. Experimental and computational modelling of solid particle erosion in a pipe annular cavity[J]. Draft Manuscript for Journal of Wear,2013,2:1-6.
【4】亢力强,郭烈锦. 风沙运动的DPM数值模拟[J]. 工程热物理学报,2006,27(3): 442-443.
【5】王芳,欧阳洁,张小华. 流化床中动态行为硬球模拟与软球模拟的比较[J]. 化工学报,2010,57(2): 282.
【6】CUNDALL P A,STRACK O D L. A discrete numerical model for granular assemblies[J]. Geotechnique,1979,29(1):47-65.
【7】李国美,王跃社,黄刚,等. 套管壁面颗粒冲蚀预测及减弱措施研究[J]. 石油机械,2010,38(1): 20-21.
【8】陈胤密,柳朝晖,郑楚光. 颗粒碰撞的直接模拟算法[J]. 计算物理,2004,21(5): 421-422.
【9】MORSI S A,ALEXANDER A J. An investigation of particle trajectories in two-phase flow systems[J]. Fluid Mech,2007,55(2):193-208.
【10】STACK M M. Some comments on mapping the combined effects of slurry concentration,impact velocity and electrochemical potential on the erosion-corrosion of WC/Co-Cr coatings[J]. Wear,2008,264:826-837.
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