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工程设计学报
工程设计学报  2019, Vol. 26 Issue (5): 534-543    DOI: 10.3785/j.issn.1006-754X.2019.05.006
优化设计     
整体式卡瓦齿槽结构优化
郝地龙1,2, 何霞1,2, 王国荣1,2,3, 易建国4, 陈彰斌5
1.西南石油大学 机电工程学院， 四川 成都 610500
2.西南石油大学 能源装备研究院， 四川 成都 610500
3.西南石油大学 油气藏地质及开发工程国家重点实验室， 四川 成都 610500
4.四川省威沃敦化工有限公司， 四川 广汉 618304
5.株洲时代新材料科技股份有限公司， 湖南 株洲 412007
Structure optimization of integral slip groove
HAO Di-long1,2, HE Xia1,2, WANG Guo-rong1,2,3, YI Jian-guo4, CHEN Zhang-bin5
1.School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China
2.Institute of Energy and Equipment, Southwest Petroleum University, Chengdu 610500, China
3.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
4.Sichuan Weldon Chemical Co., Ltd., Guanghan 618300， China
5.Zhuzhou Times New Material Technology Co.，Ltd.， Zhuzhou 412007， China
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摘要： 为提高可溶桥塞中整体式卡瓦的承载能力，对卡瓦齿槽结构进行了优化。首先，开展整体式卡瓦承载能力实验并分析卡瓦失效的原因。然后，应用有限元法建立了整体式卡瓦及与之接触部件的六分之一模型和广义接触关系，分析了单一齿槽结构参数对卡瓦锚定效果的影响，并通过正交试验优选出最佳齿槽结构参数：前排齿槽轴心线距离卡瓦前端25 mm，前后排齿槽轴向间距为15 mm，齿槽轴心线夹角为20°，齿槽轴心线倾角为20°，齿槽深度为7 mm。最后，对齿槽结构优化后的整体式卡瓦进行实物加工并开展承载能力实验，结果表明该卡瓦的轴向承载力可达629 kN,能够承受内径为114.3 mm的套管在井下70 MPa压力环境中受到的轴向载荷。仿真和实验结果表明整体式卡瓦齿槽结构参数对卡瓦的承载能力有重要影响，研究结果对镶齿类整体式卡瓦结构设计具有重要参考价值。
Abstract: To improve the bearing capacity of the integral slip in the soluble bridge plug, the structure of slip groove was optimized. Firstly, the failure reasons of the integral slip were analyzed through the bearing capacity test. Secondly, a one-sixth model and the generalized contact relation of integral slip and its contact parts were established by finite element method, and the influence of single tooth structure parameter on the anchoring effect of slip was analyzed. Then, an orthogonal experiment was designed to select the best groove structure parameters: the distance between the front groove axes and slip front was 25 mm, the distance between the front and back groove axes was 15 mm, the angle of groove axis was 20°, the inclination angle groove axis was 20° and the groove depth was 7 mm. Finally, the integral slip with optimized groove structure was processed and the bearing capacity experiment was carried out. The experiment results showed that the axial bearing capacity of slip reached 629 kN, which could bear the axial load of casing with inner diameter of 114.3 mm under the 70 MPa downhole pressure environment. The simulation and experimental results indicate that the integral slip groove parameters have significant influence on the bearing capacity of slip. The research results have important reference value for the design of integral slip structure with insert teeth.
收稿日期: 2019-01-18 出版日期: 2019-10-28
CLC:  TE 925.2  
基金资助: 国家重点研发计划资助项目（2018YFC0310201）；四川省青年基金资助项目（2017JQ0029）
通讯作者: 何霞（1976—），女，四川成都人，副教授，硕士，从事机械设计及理论、流体机械工程等研究，E-mail:Hx.wgr@163.com，https://orcid.org/0000-0002-5305-856X     E-mail: Hx.wgr@163.com
作者简介: 郝地龙( 1993－)，男，云南曲靖人，硕士生，从事桥塞结构设计研究，E-mail:26080832142qq.com
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引用本文:

郝地龙, 何霞, 王国荣, 易建国, 陈彰斌. 整体式卡瓦齿槽结构优化[J]. 工程设计学报, 2019, 26(5): 534-543.

HAO Di-long, HE Xia, WANG Guo-rong, YI Jian-guo, CHEN Zhang-bin. Structure optimization of integral slip groove. Chinese Journal of Engineering Design, 2019, 26(5): 534-543.

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https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2019.05.006    或    https://www.zjujournals.com/gcsjxb/CN/Y2019/V26/I5/534

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