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| 均匀载荷作用下高密射孔参数对套管应力分布的影响 | |
| 引用本文： | 王伯军,张士诚,张劲,韩令春,张力木. 均匀载荷作用下高密射孔参数对套管应力分布的影响[J]. 钻采工艺, 2007, 30(2): 96-99 |
| 作者姓名： | 王伯军 张士诚 张劲 韩令春 张力木 |
| 作者单位： | 1. 中国石油大学·北京 2. 大庆油田勘探开发研究院 3. 四川石油管理局川东钻探公司 |
| 基金项目： | 套管损坏机理及防治措施研究的部分研究内容,编号:12040032005100002 |
| 摘 要： | 套管射孔后应力重新分布，出现应力集中的现象，对管体的破坏是一个不可忽视的影响因素。文章对结构为N80钢级的高密射孔管进行研究，采用有限单元法建立了三维有限元力学模型，根据弹塑性力学理论，借助有限元软件，对不同孔径、孔密及相位角的射孔套管在一定外压情况下沿不同路径的应力系数进行了有限元分析，给出了不同参数下沿不同路径的应力分布情况。其结果为高密射孔管的设计提供了依据，也为其优化方案提供了经济有效的方法。 |
| 关 键 词： | 均匀载荷 高密射孔管 应力系数 弹塑性有限元 射孔参数 |
| 文章编号： | 1006-768X(2007)02-0096-04 |
| 修稿时间： | 2006-11-01 |
Effect of Perforating Parameters on Stress Distribution of High-density Perforated Casing Under Uniform Loading |
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| WANG Baijun,ZHANG Shicheng,ZHANG jin,HAN Lingchun,ZHANG Limu. Effect of Perforating Parameters on Stress Distribution of High-density Perforated Casing Under Uniform Loading[J]. Drilling & Production Technology, 2007, 30(2): 96-99 | |
| Authors: | WANG Baijun ZHANG Shicheng ZHANG jin HAN Lingchun ZHANG Limu |
| Abstract: | The stress redistribute and concentrate after perforation which is a important causation of casing failure. The paper researched high-density perforated casing of N80 steel, and adopting the finite unit method established the three dimensions finite element model. Based on the finite element software and elastic-plastic mechanics theory, the stress coefficient of perforated casing with the different bore density, bore diameter, phasing degree was carried out finite element analysis, and the stress distribution was given under difference parameters with difference paths. The result offered a gist for the design of high-density perforated casing. |
| Keywords: | uniform load high-density perforated casing stress coefficient elastic-plastic finite element perforating parameter |
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