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[1]刘洪斌,牟浩.加砂压裂中固体支撑剂对压裂管道的冲蚀磨损研究[J].中国安全生产科学技术,2018,14(1):87-94.[doi:10.11731/j.issn.1673-193x.2018.01.014]
　LIU Hongbin,MU Hao.Study on erosion wear of fracturing pipe caused by solid proppant in sand fracturing[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(1):87-94.[doi:10.11731/j.issn.1673-193x.2018.01.014]
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加砂压裂中固体支撑剂对压裂管道的冲蚀磨损研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年1期
页码:
87-94
栏目:
职业安全卫生管理与技术
出版日期:
2018-01-31

文章信息/Info

Title:
Study on erosion wear of fracturing pipe caused by solid proppant in sand fracturing
文章编号:
1673-193X(2018)-01-0087-08
作者:
刘洪斌; 牟浩
（西南石油大学 机电工程学院，四川 成都 610500）
Author(s):
LIU Hongbin;  MU Hao
(School of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China)
关键词:
冲蚀; 高压管汇; 三通; 数值模拟
Keywords:
erosion;  high pressure manifold;  tee;  numerical simulation
分类号:
X937；TE931
DOI:
10.11731/j.issn.1673-193x.2018.01.014
文献标志码:
A
摘要:
为研究压裂高压管汇在大排量携砂液输送过程中的管壁冲蚀磨损问题，应用CFD方法及Fluent软件，建立了高压管汇主要管件三通管的冲蚀模型，基于数值模拟计算研究了冲蚀发生机理及位置，探讨了高压管汇的冲蚀特点。结果表明:压裂液流动方向变化区域存在严重的冲蚀现象，如主管与支管连接处；三通主管下游段，内壁冲蚀主要是来自支管的固体支撑剂在运动方向改变时对内壁低角度切削；管汇里越靠近井口的三通因为压裂液流量增加，主管下游段两侧冲蚀越严重。该研究结果可为管汇设计制造、关键部位检测等提供技术参考。
Abstract:
In order to study the erosion wear of pipe wall during the transportation process of sand carrying fluid with large flow rate in the fracturing high pressure manifold, an erosion model of tee as the main pipe fitting of high pressure manifold was established by using the CFD method and Fluent software. The occurrence mechanism and positions of erosion were studied based on the numerical simulation calculation, and the erosion characteristics of high pressure manifold were discussed. The results showed that there existed serious erosion phenomenon in the area where the flow direction of fracturing fluid changed, such as the joint of main pipe and branch pipe. In the downstream section of the tee main pipe, the erosion of inner wall was mainly caused by the low angle cutting on the inner wall when the movement direction of solid proppant from the branch pipe changed. The closer the tee in the manifold to the wellhead, the more serious the erosion on both sides of the downstream section of main pipe due to the increasing flow rate of fracturing fluid. The results can provide the technical reference for the design and manufacture of manifolds, as well as the detection of key positions.

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备注/Memo

备注/Memo:
四川省科技厅资助项目（2015SZ0008）；四川省教育厅资助项目（13ZA0179）
更新日期/Last Update: 2018-02-12