| 斜井坍塌压力计算公式的理论研究 |
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| 引用本文： | 李培超,李培伦,曹丽杰.斜井坍塌压力计算公式的理论研究[J].上海工程技术大学学报,2010,24(1):1-4. |
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| 作者姓名： | 李培超 李培伦 曹丽杰 |
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| 作者单位： | 上海工程技术大学,机械工程学院,上海,201620中国石油大学(华东)石油工程学院,青岛,266555 |
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| 基金项目： | 上海市重点学科建设项目，上海高校选拔培养优秀青年教师科研专项基金资助项目 |
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| 摘 要： | 采用经典弹性力学理论,解析斜井井壁上的三向主应力.利用Mohr - Coulomb准则研究井壁岩石发生剪切破坏的条件,建立斜井井壁坍塌压力的求解方程,并给出了垂直井和水平井情形下井壁坍塌压力的解析公式.
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| 关 键 词： | 井壁稳定 斜井 应力分布 剪切破坏 坍塌压力 |
Theoretical Study on Collapse Pressure Calculating Equation of Deviated Wellbore |
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| LI Pei-chao,LI Pei-lun,CAO Li-jie.Theoretical Study on Collapse Pressure Calculating Equation of Deviated Wellbore[J].Journal of Shanghai University of Engineering Science,2010,24(1):1-4. |
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| Authors: | LI Pei-chao LI Pei-lun CAO Li-jie |
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| Affiliation: | LI Pei-chao1,LI Pei-lun2,CAO Li-jie1(1.College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China,2.School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266555,China) |
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| Abstract: | Based on the classical theory of elasticity,three principal stresses on the wall of the deviated wellbore were obtained and conditions for shear failure of rocks on the wall were studied by the Mohr-Coulomb criterion,then a calculating equation of the collapse pressure on the wall was set up.The equations of the collapse pressure for the vertical and the horizontal wellbores were also presented. |
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| Keywords: | wellbore stability deviated wellbore stress distribution shear failure collapse pressure |
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