| 轴向载荷作用下连续管的抗内压/外挤分析 |
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| 引用本文： | 王龙庭,徐兴平,梁会高,王雷,李艳欣.轴向载荷作用下连续管的抗内压/外挤分析[J].西安石油大学学报(自然科学版),2008,23(5). |
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| 作者姓名： | 王龙庭 徐兴平 梁会高 王雷 李艳欣 |
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| 作者单位： | 1. 四川宏华石油设备有限公司,研发部,四川,广汉,618300
2. 中国石油大学(华东)机电工程学院,山东,东营,257061 |
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| 摘 要： | 根据连续管在井下的应力状态,考虑轴向载荷,应用弹性失稳理论和von Mises屈服准则,对理想圆截面管进行抗内压分析,得出连续管的破裂压力.建立椭圆截面管的挤毁压力数学模型;运用有限元软件对连续管的挤毁压力进行计算机模拟分析;并对挤毁压力数学模型和有限元分析结果进行比较,二者吻合.
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| 关 键 词： | 连续油管 破裂压力 挤毁压力 数学模型 计算机模拟 |
Internal and external pressure insistences of coiled tubing under axial tension load |
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| WANG Long-ting,XU Xing-ping,LIANG Hui-gao,WANG Lei,LI Yan-xin.Internal and external pressure insistences of coiled tubing under axial tension load[J].Journal of Xian Shiyou University,2008,23(5). |
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| Authors: | WANG Long-ting XU Xing-ping LIANG Hui-gao WANG Lei LI Yan-xin |
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| Abstract: | According to the stress state of the coiled tubing in the operating process,the bursting pressure of the coiled tubing with circular section under axial tension load and internal(and external)pressure are gained based on elastic instability theory and the von Mises criterion.The mathematical model of the collapse pressure of the coiled tubing under axial tension load and external pressure is established based on elastic instability theory and the von Mises criterion.The finite element model of it is also presented,and the theoretical calculation result of the collapse pressure is compared with the finite element calculation result,and both are consistent. |
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| Keywords: | coiled tubing bursting pressure collapsing pressure mathematical model computer simulation |
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