基于冲蚀磨损理论的压裂滑套导流角度数研究
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摘要
为验证2种不同型号的投球压裂滑套在固液两相流的冲蚀作用下的磨损情况及可靠性,为研究其冲蚀分布规律,在冲蚀理论分析和数值模拟的基础上,采用CFD方法和ANSYS CFX软件对2种不同型号的投球压裂滑套在特定工况下的内流场及冲蚀分布情况进行了仿真分析,并针对不同扩张球座导流角的度数对压裂滑套冲蚀磨损性能的影响进行了分组对比研究。数值模拟研究结果表明:最大冲蚀位置出现在导流面末端;导流角对压裂滑套的耐冲蚀磨损性能有较大影响,其最优导流角度为20°。本文的研究结果可为评估压裂滑套工作可靠性提供理论依据,且能够指导压裂滑套工具的现场应用。
This paper is to verify the wear and reliability of two different types of pitching fracturing sleeve under the erosion of solid-liquid two-phase flow.Based on theoretical analysis and numerical simulation of erosion,the CFD method and ANSYS CFX software were used to simulate the internal flow field and erosion distribution of two different types of pitching fracturing sleeve under certain working conditions.The effects of different degrees of diversion angle on the erosion and wear properties of fracturing sleeve were compared and investigated.Research indicated that the maximum erosion position appears was at the end of the diversion surface,the diversion angle had a great influence on the erosion and wear resistance of the fracturing sleeve and its optimal flow angle was 20°.Results of this study can provide a theoretical basis for evaluating the reliability of fracturing sleeve operation and guide the field application of the fracturing sleeve.
This paper is to verify the wear and reliability of two different types of pitching fracturing sleeve under the erosion of solid-liquid two-phase flow.Based on theoretical analysis and numerical simulation of erosion,the CFD method and ANSYS CFX software were used to simulate the internal flow field and erosion distribution of two different types of pitching fracturing sleeve under certain working conditions.The effects of different degrees of diversion angle on the erosion and wear properties of fracturing sleeve were compared and investigated.Research indicated that the maximum erosion position appears was at the end of the diversion surface,the diversion angle had a great influence on the erosion and wear resistance of the fracturing sleeve and its optimal flow angle was 20°.Results of this study can provide a theoretical basis for evaluating the reliability of fracturing sleeve operation and guide the field application of the fracturing sleeve.
引文
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[3]RYTLEWSKI G,LIMA J,DOLAN B.Novel technology replaces perforating and improvesefficiency during multiple layer fracturing operations[C]∥Society of Petroleum Engineers Rocky Mountain Oil and Gas Technology Symposium 2007.Richardson,TX,USA:Society of Petroleum Engineers,2007:180-186.
[4]张焕芝,何艳青,刘嘉,等.国外水平井分段压裂技术发展现状与趋势[J].石油科技论坛,2012,31(6):47-52.
[5]朱玉杰,郭朝辉,魏辽,等.套管固井分段压裂滑套关键技术分析[J].石油机械,2013,41(8):102-106.ZHU Yujie,GUO Chaohui,WEI Liao,et al.Analysis of key techniques of casing cementing by fracturing sleeve[J].China Petroleum Machinery,2013,41(8):102-106.(in Chinese)
[6]丁坤,李建民,杨文新,等.压裂液对水平井滑套球座冲蚀磨损的数值模拟[J].石油机械,2014,42(12):75-78.DING Kun,LI Jianmin,YANG Wenxin,et al.Numerical simulation of erosion and wear of sliding sleeve ball seat in horizontal well by fracturing fluid[J].China Petroleum Machinery,2014,42(12):75-78.(in Chinese)
[7]吴波.渣浆泵固液两相三维湍流及冲蚀磨损特性研究[D].长沙:中南大学,2010.WU Bo.Three-dimensional turbulent flow and erosion wear characteristics of solid and liquid phases in slurry pump[D].Changsha:Central South University,2010.(in Chinese)
[8]谢龙汉,赵新宇,张炯明,等.ANSYS CFX流体分析及仿真[M].北京:电子工业出版社,2012:12-14.XIE Longhan,ZHAO Xinyu,ZHANG Jiongming,et al.ANSYS CFX fluid analysis and simulation[M].Beijing:Electronics Industry Press,2012:12-14.(in Chinese)
[9]谢永金,樊建春,张宏,等.页岩气开发用高压管汇损伤机理及检测技术[J].石油机械,2011,39(S1):109-112.XIE Yongjin,FAN Jianchun,ZHANG Hong,et al.Damage mechanism and detection technology of high pressure tubes for shale gas development[J].China Petroleum Machinery,2011,39(S1):109-112.(in Chinese)
[10]丁源,吴继华.ANSYS CFX 14.0从入门到精通[M].北京:清华大学出版社,2013:203-205.DING Yuan,WU Jihua.ANSYS CFX 14.0from introduction to mastery[M].Beijing:Tsinghua University Press,2013:203-205.(in Chinese)
[11]ZHENG Zhijian,OU Guofu,YE Haojie,et al.Investigation on failure process and structural optimization of a high pressure letdown valve[J].Engineering Failure Analysis,2016,66:223-239.
[12]APONTE RD,TERAN L A,LADINO J A,et al.Computational study of the particle size effect on a jet erosion wear device[J].Wear,2017,374:97-103.
[13]张继信,樊建春,张来斌,等.30CrMo合金钢的冲蚀磨损性能研究[J].润滑与密封,2012,37(4):15-18.ZHANG Jixin,FAN Jianchun,ZHANG Laibin,et al.Experimental study on erosion wear properties of30CrMo[J].Lubrication Engineering,2012,37(4):15-18.(in Chinese)