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工程设计学报
工程设计学报  2017, Vol. 24 Issue (3): 359-364    DOI: 10.3785/j.issn.1006-754X.2017.03.017
通用零部件设计     
新型封隔器胶筒防突装置的设计及分析
黎伟1,2, 宋伟1,2, 雷鸿翔1,2, 黎宗琪3, 李斌3
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 石油天然气装备教育部重点实验室, 四川 成都 610500;
3. 中国石油集团川庆钻探工程有限公司 井下作业公司, 四川 成都 610051
Design and analysis of new anti-extrusion device for packer rubber
LI Wei1,2, SONG Wei1,2, LEI Hong-xiang1,2, LI Zong-qi3, LI Bin3
1. College of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu 610500, China;
2. Key Laboratory of Oil and Gas Equipment of Ministry of Education, Southwest Petroleum University, Chengdu 610500, China;
3. Downhole Operation Company, Chuanqing Drilling Engineering Company Limited, China National Petroleum Corporation, Chengdu 610051, China
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摘要：

为了防止封隔器胶筒在大间隙和高压差工况下肩部突出，提高封隔器的封隔能力，针对传统防突装置的不足设计了一种伞式完全防突装置。首先，使用有限元软件对无防突装置、安装部分防突装置和使用完全防突装置的胶筒在封隔大间隙工况下的密封性能进行了对比分析，发现使用完全防突装置时胶筒的最大Von Mises应力最小、封隔能力最强。其次，介绍了伞式防突装置的结构和工作原理，对其机构进行了分析。同时设计了一款适用于Y111-150型封隔器胶筒的伞式防突装置，验证了机构不会发生自锁，各零部件之间也无干涉发生。当防突装置翼板展开防突时，连杆两端处的销钉受力最大，此处易发生失效；当防突装置用于大间隙、高压差封隔时可适当增加这2处销钉的直径和连杆的厚度。研究结果对封隔器防突装置的设计具有一定参考意义。
关键词： 封隔器胶筒;  完全防突;  伞式;  翼板    
Abstract:

In order to prevent the shoulder of the packer rubber tube from bursting and improve sealing ability of packer under the working condition of large clearance and high pressure difference, a kind of umbrella complete anti-extrusion device is designed against the weakness of traditional anti-extrusion device. Packer rubbers without anti-extrusion device, with partial anti-extrusion device and with complete anti-extrusion device were analyzed by using the finite element software. Sealing performances were compared under the condition of large clearance. Analysis results showed the maximum Von Mises stress of packer rubber with complete anti-extrusion device was the minimum and the sealing ability was best. Then, the structure and working principle of umbrella complete anti-extrusion device were introduced and its mechanism was analyzed. At the same time, an umbrella complete anti-extrusion device which was suitable for the Y111-150 packer was designed. Whether the mechanism was self-locking and whether the parts interfere with each other were verified. When the flap of anti-extrusion device opening,the pins at the both end of the connecting rod were likely to lose efficacy with maximum stress. The diameter of pins and the connecting thickness of rod were necessary to fortify when the anti-extrusion device in the high pressure difference and large clearance condition. The research achievement has a certain significance for design of anti-extrusion device.
Key words: packer rubber    complete anti-extrusion    umbrella    alar plate
收稿日期: 2016-04-22 出版日期: 2017-06-28
CLC:  TH122  
基金资助:

国家自然科学基金面上项目（51274171）；教育部重点实验室项目（OGE201403-03）；四川省科技计划项目（2015JY0078，2015SZ0010-06）；四川省教育厅科研项目（14ZA0042）
作者简介: 黎伟(1983-),男,四川成都人,讲师,硕士生导师,博士,从事井下工具设计及仿真分析等研究,E-mail:liwei867@aliyun.com,http://orcid.org//0000-0001-8849-409X
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引用本文:

黎伟, 宋伟, 雷鸿翔, 黎宗琪, 李斌. 新型封隔器胶筒防突装置的设计及分析[J]. 工程设计学报, 2017, 24(3): 359-364.

LI Wei, SONG Wei, LEI Hong-xiang, LI Zong-qi, LI Bin. Design and analysis of new anti-extrusion device for packer rubber[J]. Chinese Journal of Engineering Design, 2017, 24(3): 359-364.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2017.03.017    或    https://www.zjujournals.com/gcsjxb/CN/Y2017/V24/I3/359

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