| 油井套管、水泥环组合体抗非均匀围岩外载的强度特性 |
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| 引用本文： | 邓金根,王康平,黄荣樽,陈勉. 油井套管、水泥环组合体抗非均匀围岩外载的强度特性[J]. 岩石力学与工程学报, 1994, 13(2): 160-160 |
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| 作者姓名： | 邓金根 王康平 黄荣樽 陈勉 |
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| 作者单位： | 石油大学 |
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| 摘 要： | 本文针对我国许多油田在开发过程中经常出现流变性地层产生蠕变流动而挤坏大量套管的实际情况，利用弹性力学的复变函数法，推导出了套管、水泥环组合体在各类非均匀围岩＊变载荷作用下套管内部的应力状态的计算公式。用所推导的公式分析计算了组合体承受各类非均匀围岩蠕变外载的能力，研究了套管、水泥环的弹性参数和几何参数对组合体承载能力的影响，得到许多规律性的认识所得结果对于油田流变性地层中套管、水泥环组合体的设计具有重要的指导意义。
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| 关 键 词： | 套管 水泥环 非均匀载荷 围岩 强度 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 1992-11-24 |
COLLAPSE RESISTANCE OF OIL WELL CASING-CEMENT MANTLE COMBINATITON SUBJECTEDTO NON-UNIFORM LOADING BY ROCK CREEP |
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| Deng Jingen,Wang KangPing,Huang Rongzun,Chen Mian. COLLAPSE RESISTANCE OF OIL WELL CASING-CEMENT MANTLE COMBINATITON SUBJECTEDTO NON-UNIFORM LOADING BY ROCK CREEP[J]. Chinese Journal of Rock Mechanics and Engineering, 1994, 13(2): 160-160 |
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| Authors: | Deng Jingen Wang KangPing Huang Rongzun Chen Mian |
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| Affiliation: | University of Petroleum |
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| Abstract: | In recent years,many oil well casings have been collapsed due to creep of viscoelastic rocks.In thispaper,the formulas of calculating stresses in the casing,under the condition of the casing-cement mantlecombination subrcted to four types of non-uniform creep loading,is derived by means of complex function method in Elastic Mechanics,Using the formulas, the strength of the combination under the fourtypes of loading is analyzed by calculating the casing wall stresses,and the effect of the elastic andgeometric parameters of the casings and cement mantles on the strength is also studied. Some importantresults are obtained in this study,and it would have a great value for the design of the oil well casing increep formations. |
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| Keywords: | Casing Cement-mantle Non-uniform Loading Strength. |
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