| 非均匀地应力下水泥环界面应力分布规律研究 |
| |
| 引用本文： | 曾德智,林元华,李双贵,施太和.非均匀地应力下水泥环界面应力分布规律研究[J].石油钻探技术,2007,35(1):32-34. |
| |
| 作者姓名： | 曾德智 林元华 李双贵 施太和 |
| |
| 作者单位： | 1. 西南石油大学,石油工程学院,四川,成都,610500
2. 中国石化,西北分公司,新疆,乌鲁木齐,830011 |
| |
| 基金项目： | 四川省杰出青年学科带头人培养计划;石油科技中青年创新项目 |
| |
| 摘 要： | 针对水泥环的受力及其失效问题建立了非均匀地应力下地层、水泥环和套管的弹性耦合力学模型，给出了水泥环和套管的应力、位移表达式，编制相关计算程序计算了非均匀地应力作用下水泥环界面的应力分布，结果表明，非均匀地应力作用下水泥环界面应力分布呈现较强的非均匀性，这可能导致水泥环先于套管破坏，从而加速套管损坏。该模型的建立为固井水泥石强度的设计提供了理论参考。
|
| 关 键 词： | 固井 水泥环 套管 数学模型 应力分析 |
| 文章编号： | 1001-0890（2007）01-0032-03 |
| 收稿时间： | 07 25 2006 12:00AM |
| 修稿时间： | 2006-07-252006-09-21 |
Study of Stress Distribution of Cement Sheath Cross Section under Non-Uniform Formation Stress |
| |
| Zeng Dezhi,Lin Yuanhua,Li Shuanggui,Shi Taihe.Study of Stress Distribution of Cement Sheath Cross Section under Non-Uniform Formation Stress[J].Petroleum Drilling Techniques,2007,35(1):32-34. |
| |
| Authors: | Zeng Dezhi Lin Yuanhua Li Shuanggui Shi Taihe |
| |
| Abstract: | The mechanics model, coupling the formation, cement sheath and easing under non-uniform formation stress, was created based on the force and failure problems of cement sheath. The stress, displacement expression of cement sheath and casing were provided. The associated calculating package to calculate stress distribution of cement sheath cross section was programmed. The results indicate that stress distribution of cement sheath cross section is strong non-uniform, which might cause the cement sheath to break earlier than easing, therefore to accelerate the breaking on casing. The creation of this model provides the theoretical references for the cement strength design. |
| |
| Keywords: | well cementing cement sheath casing mathematical model stress analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
