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| 热采井井筒热应力耦合的数值模拟 | |
| 引用本文： | 陈勇,练章华,刘永辉,李留伟.热采井井筒热应力耦合的数值模拟[J].石油矿场机械,2007,36(6):3-6. |
| 作者姓名： | 陈勇 练章华 刘永辉 李留伟 |
| 作者单位： | 1. 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 2. 冀东油田公司工程监督中心,河北,唐海,063200 3. 西南石油局,重庆钻井工程公司,重庆,400042 |
| 基金项目： | 教育部科学技术研究项目;中国石油天然气集团公司资助项目 |
| 摘 要： | 利用有限元软件ABAQUS建立了热采井井筒热应力耦合的瞬态分析模型。分析结果表明,注汽初始阶段套管内会产生较大的热应力;由于套管材料的膨胀系数大于水泥环的膨胀系数,在注汽过程中水泥环限制了套管的热膨胀,从而在套管外壁产生较大的热应力;经过几轮蒸汽吞吐,套管上会积累较高的残余应力。该分析为建立合理的热采井套管损坏预防措施提供可靠的依据。 |
| 关 键 词： | 热采井 热应力 耦合 残余应力 套管损坏 有限元分析 |
| 文章编号： | 1001-3482（2007）06-0003-04 |
| 修稿时间： | 2006-11-10 |
Numerical Simulation of Thermal-Stress Coupling in Steam Injection Well |
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| CHEN Yong,LIAN Zhang-hua,LIU Yong-hui,LI Liu-wei.Numerical Simulation of Thermal-Stress Coupling in Steam Injection Well[J].Oil Field Equipment,2007,36(6):3-6. | |
| Authors: | CHEN Yong LIAN Zhang-hua LIU Yong-hui LI Liu-wei |
| Affiliation: | 1. State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China ; 2. Jidong Oil field Engineering Supervision Center, Tanghai 063200, China ; 3. Southuwest Petroleum Bureau, Chongqing Drilling Engineering Company, Chongqing 400042, China |
| Abstract: | The transient analysis model of thermal-stress coupling in steam injection well is established by finite element software ABAQUS. The results show that high thermal stress is generated in casing at the beginning of steam injection.Because coefficient of expansion of casing is a little bigger than cement's,expansion of casing is confined by cement in steam injection and high thermal stress is generated on external wall of casing.After some steam stimulations,high residual stress is accumulated in casing.The analysis in this paper provides dependable reference to set up preventive measures for casing failure in steam injection well. |
| Keywords: | steam injection well thermal stress coupling residual stress casing failure finite element analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
