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| 引用本文： | 练章华,刘干,唐波,董范,李渊.????????????????????????????[J].天然气工业,2002,22(6):55-57. |
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| 作者姓名： | 练章华 刘干 唐波 董范 李渊 |
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| 作者单位： | 1. ?????????;2. ????????????峧 |
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| 基金项目： | 国家自然科学基金项目资助 (批准号 :5 0 0 740 2 5 ) |
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| 摘 要： | 文中建立了套管、水泥环和地层互作用的弹塑性的有限元力学模型，用MSC.Marc软件的高度非线性功能对本文的复杂力学系统进行了一系列的计算机仿真模拟研究，为复杂地层套管破坏机理研究提供了简便，可行的方法。本方法可以反推地层载荷，为复杂地层套管破坏的预防措施提供了理论依据。
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| 关 键 词： | 塑性流动地层 石油套管破坏 有限元分析 力学模型 弹塑性 |
| 修稿时间： | 2002年3月28日 |
Finite Element Analysis of Casing Damage in Plastic Flow Formation |
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| Lian Zhanghua,Liu Gan and Tang Bo.Finite Element Analysis of Casing Damage in Plastic Flow Formation[J].Natural Gas Industry,2002,22(6):55-57. |
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| Authors: | Lian Zhanghua Liu Gan and Tang Bo |
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| Affiliation: | 1. Southwest Petroleum Institute;2. No.5 Oil Production Plant of North China Oil Field |
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| Abstract: | Through setting up an elastic-plastic finite element mechanical model expressing the interaction among casing,cement mantle and formation,a series of simulating research were carried out for the complicated mechanical system mentioned in the paper by use of the MSC.Marc software with high nonlinear function,thus providing a simple,convenient and feasible method for studying the casing damage mechanism in complex formations.Moreover the overlying formation load inversion may be done by use of this method,thus providing theoretical basis for taking preventive measures against the casing damage in complex formations. |
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| Keywords: | Casing Mechanical model Finite element Rock Analysis |
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