| 椭圆水泥环厚度和弹性模量对套管受力的影响分析 |
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| 引用本文： | 贾春雨,代晓宇.椭圆水泥环厚度和弹性模量对套管受力的影响分析[J].佳木斯大学学报,2009,27(2). |
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| 作者姓名： | 贾春雨 代晓宇 |
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| 作者单位： | 贾春雨,JIA Chun-yu(大庆石化公司科技信息处,黑龙江,大庆,163714);代晓宇,DAI Xiao-yu(大庆石化公司建设公司,黑龙江,大庆,163714)
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| 摘 要： | 根据岩石力学和弹塑性力学理论,建立套管-水泥环-地层力学模型,采用有限元方法研究分析不同地应力条件下椭圆水泥环厚度和弹性模量对套管应力的影响,研究结果表明:在均匀地应力条件下,一定厚度的圆形水泥环对减小套管受力有益,在非均匀地应力条件下,采用椭圆水泥环能有效的减小套管应力.
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| 关 键 词： | 椭圆水泥环 厚度 弹性模量 套管 |
The Effect of Elliptic Cement Sheath Thickness and Elastic Modules on Casing Stress |
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| JIA Chun-yu,DAI Xiao-yu.The Effect of Elliptic Cement Sheath Thickness and Elastic Modules on Casing Stress[J].Journal of Jiamusi University(Natural Science Edition),2009,27(2). |
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| Authors: | JIA Chun-yu DAI Xiao-yu |
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| Institution: | 1.Technology Dept.;Daqing Petrochemical Company;Daqing 163714;China;2.Construction Branch;China |
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| Abstract: | A casing-cement sheath-formation mechanical model was built according to the rock mechanics and elastic-plastic mechanics theory.The finite element analysis was used to research the influence of thickness and the elastic modulus of the elliptical cement sheath on casing stress under different in-situ stress states.The research suggests that circular cement sheath with a certain thickness becomes available to reduce casing stress in a uniform stress conditions and can effectively reduce casing stress using e... |
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| Keywords: | elliptic cement sheath thickness elastic modules casing |
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