| CNG储气井套管腐蚀疲劳机理研究 |
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| 引用本文： | 田家林,梁政,杨琳,邓雄,张梁. CNG储气井套管腐蚀疲劳机理研究[J]. 石油矿场机械, 2011, 40(1): 5-9 |
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| 作者姓名： | 田家林 梁政 杨琳 邓雄 张梁 |
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| 作者单位： | 1. 西南石油大学,机电工程学院,成都,610500;西南石油大学,石油天然气装备教育部重点实验室,成都,610500
2. 西南石油大学,机电工程学院,成都,610500 |
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| 基金项目： | 石油天然气装备教育部重点实验室基金资助项目(2006STS02); 四川省教育厅自然科学重点实验室专项基金资助项目(2006ZD043) |
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| 摘 要： | 在分析CNG加气站储气井套管腐蚀失效现象的基础上,根据CNG加气站储气井的工况,结合国内外研究成果,探讨了该套管腐蚀疲劳失效机理,初步建立了腐蚀疲劳裂纹萌生理论和腐蚀疲劳裂纹扩展理论。以某CNG储气井的封头为例,分析计算了35CrMo材料的临界裂纹尺寸,提出了计算时应该注意的相关问题。
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| 关 键 词： | CNG 储气井 腐蚀 疲劳 失效 |
Study of Invalidation of Corrosion Fatigue Mechanism of CNG Storage Well Thimble |
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| TIAN Jia-lin,LIANG Zheng,YANG Lin,DENG Xiong,ZHANG Liang. Study of Invalidation of Corrosion Fatigue Mechanism of CNG Storage Well Thimble[J]. Oil Field Equipment, 2011, 40(1): 5-9 |
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| Authors: | TIAN Jia-lin LIANG Zheng YANG Lin DENG Xiong ZHANG Liang |
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| Affiliation: | TIAN Jia-lina,b,LIANG Zhenga,YANG Lina,DENG Xionga,ZHANG Lianga,b(a.College of Mechanical and Electrical Engineering,b.Key Laboratory of Petroleum and Natural GasEquipment of China Education Ministry,Southwest Petroleum University,Chengdu 610500,China) |
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| Abstract: | Based on the analysis of the corrosion fatigue invalidation phenomenon and the actually work situation,this paper is concerned with corrosion fatigue mechanism of CNG storage well thimble.As a preliminary research step,the crack production and spreading theory of CNG storage well thimble by referencing to some newest research results were carried out.Taking the cementation craft of CNG storage well as example,the critical crack dimension of 35CrMo was analyzed,and correlation key questions was put forward. |
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| Keywords: | CNG gas storage well corrosion fatigue invalidation |
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