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| 非均匀地应力下套管挤压变形的有限元分析 | |
| 引用本文： | 秦杜,楼一珊,翟晓鹏,刘云鹤,陈灿. 非均匀地应力下套管挤压变形的有限元分析[J]. 石油地质与工程, 2011, 25(5): 109-111,2 |
| 作者姓名： | 秦杜 楼一珊 翟晓鹏 刘云鹤 陈灿 |
| 作者单位： | 1. 长江大学油气钻采工程湖北省重点实验室,湖北荆州434023; 长江大学石油工程学院 2. 长庆实业集团有限公司; 3. 中国石化中原油田分公司采油工程研究院 |
| 摘 要： | 以地层-水泥环-套管组合系统为研究对象,根据弹塑性力学理论,通过建立非线性有限元模型,对套管变形与地应力作用大小及非均匀性之间的关系进行了研究.分析了不同条件下,不同规格套管的外载与变形关系,根据有限元计算结果,绘制出不同的最小水平主应力和最大水平主应力配比下的套管变形范围图,能够直观方便地预测非均匀地应力作用下的套管... |
| 关 键 词： | 非均匀地应力 挤压变形 套管损坏 有限元分析 |
Finite element analysis on non-uniform ground stress casing running extrusion deformation |
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| Qin Du et al. Finite element analysis on non-uniform ground stress casing running extrusion deformation[J]. Petroleum Geology and Engineering, 2011, 25(5): 109-111,2 | |
| Authors: | Qin Du et al |
| Affiliation: | Qin Du et al(Oil and Gas Drilling and Production Engineering Hubei Province State Key Laboratory,Yangtze University,Jinzhou,Hubei 434023) |
| Abstract: | Set stratum-cement sheath-casing combined system as study target,based on elastic-plastic mechanical theory,set up nonlinear finite element mode,carry on research of the relation on the casing deformation,ground stress change and non-uniformity.Analyse the relation of external load and deformation of different specification casing under different condition,based on the finite element calculation,draw up the casing deformation scope map of different minimum horizontal major stress and maximum horizontal majo... |
| Keywords: | non-uniform ground stress extrusion deformation casing damage finite element analysis |
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