自解封桥塞的结构设计与强度分析  

Mechanical Design and Strength Analysis of Self-disassembly Bridge Plug

作　　者：姚勇辉 YAO Yonghui(Haimo Technologies Group Corp.,Lanzhou 730010,China)

机构地区：[1]海默科技(集团)股份有限公司,兰州730010

出　　处：《机械工程师》2024年第7期142-145,共4页Mechanical Engineer

摘　　要：针对可溶桥塞的承压能力较弱的问题,提出一种基于漂珠/镁合金可溶复合材料特性的自解封桥塞,利用有限元仿真分析软件对其结构进行了强度分析。分析结果证明,中心管、球座及卡瓦锚定机构耐压可达70 MPa,胶筒密封机构可以在大于36 kN的轴向载荷作用下开始接触套管内壁并形成环空密封,满足一般泵送电缆桥塞多级水平井分段压裂工艺使用要求。In view of weak pressure bearing performance of soluble bridge plug,this paper proposes a self-disassembly bridge plug specially designed based on the characteristics of fly ash cenosphere(FAC)/magnesium alloy soluble composites,and analyzes the strength by using finite element simulation software.The analysis results show that the central pipe,ball seat and slip anchoring mechanism can withstand pressure up to 70 MPa,and the rubber cylinder sealing mechanism can contact the inner wall of the casing and form a annulus seal under axial load greater than 36 kN,which meets the general requirements of pumping bridge plug for the multi-stage horizontal well fracturing.

关 键 词：自解封 桥塞 结构设计 强度分析 

分 类 号：TH122[机械工程—机械设计及理论]