N80套管射孔性能的断裂韧性判据及验证  

Fracture Toughness Criterion and Verification of Perforation Performance for N80 Casing

作　　者：陈新平 李少华[2] 

机构地区：[1]上海包钢研究院 [2]北京钢铁研究总院

出　　处：《天津冶金》2000年第1期36-39,共4页Tianjin Metallurgy

摘　　要：射孔性能是油层套管很重要的一项指标,它代表着油层套管抵抗裂纹脆性扩展的能力。文章利用射孔开裂分析的断裂力学模型,对模拟射孔后的油层套管进行了分析,建立了能满足射孔性能要求的断裂韧性判据,并通过试验进行了验证。The perforation performance is an important index of oil - layer casing representing the resistance to initial brittle crack growth. Based on the fracture mechanic model of perforation cracking mechanism, the oil - layer casing perforated on the simulative well is analysed. The fracture toughness criterion which meets requirements of the perforation performance is obtained and verified by experiment.

关 键 词：射孔性能 套管 断裂韧性判据 

分 类 号：TG115.5[金属学及工艺—物理冶金]