全井筒试压时140V钢级油层套管管体爆裂原因
Burst Cause of 140V Steel Grade Production Casing Pipe During Wellbore Pressure Test
摘 要
140V钢级油层套管在进行全井筒试压时管体爆裂,采用宏观形貌分析、几何尺寸测量、力学试验、金相检测、扫描电镜及能谱分析等方法,分析了该套管管体爆裂原因。结果表明:该失效套管显微组织、几何尺寸、力学性能及抗内压强度等均符合标准要求,其管体爆裂模式为韧性断裂,爆裂的主要原因是管体内部压力超过了管体自身承压强度,导致发生过载断裂。
塑性断裂
爆裂
失效分析
casing
plastic fracture
burst
failure analysis
Abstract
The 140 V steel grade production casing pipe bursted during the wellbore pressure test. The causes of the casing pipe burst were analyzed by macromorphology analysis, geometry measurement, mechanical test, metallographic examination, scanning electron microscopy and energy spectrum analysis and so on. The results show that the microstructure, geometric size, mechanical properties and internal pressure strength of the failed casing met the requirements of the standard. The burst mode of the pipe was ductile fracture. The main reason for the burst was that the internal pressure of the pipe exceeded its own pressure bearing capacity, resulting in the overload fracture.
中图分类号 TE931.2 DOI 10.11973/jxgccl202211016
所属栏目 失效分析
基金项目
收稿日期 2021/8/16
修改稿日期 2022/9/20
网络出版日期
作者单位点击查看
备注赵金兰(1982-),女,山西平遥人,高级工程师,硕士
引用该论文: ZHAO Jinlan,TONG Ke,LI Hong,GUO Jun,LIU Jianxiong,LIU Qing. Burst Cause of 140V Steel Grade Production Casing Pipe During Wellbore Pressure Test[J]. Materials for mechancial engineering, 2022, 46(11): 97～101
赵金兰,仝珂,李虹,郭军,刘剑雄,刘青. 全井筒试压时140V钢级油层套管管体爆裂原因[J]. 机械工程材料, 2022, 46(11): 97～101
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参考文献
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