含腐蚀缺陷N80油管的剩余强度分析  

Residual Strength Analysis of N80 Oil Tubes with Corrosion Defects

作　　者：刘啸奔 张宏[1] 李勐[1] 夏梦莹[1] 于洋[2] LIU Xiao-ben ZHANG Hong LI Meng XIA Meng-ying YU Yang(College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249 The third Tahe Oil Production Plant, Northwest Oil Company of Sinopec, Luntai 841600, China)

机构地区：[1]中国石油大学(北京)机械与储运工程学院,北京102249 [2]中国石化西北油田分公司塔河采油三厂,轮台841600

出　　处：《腐蚀与防护》2016年第11期913-916,920,共5页Corrosion & Protection

基　　金：中石油工程设计有限责任公司科学研究项目(CPEBF-2014-02);中国石油天然气集团公司重大科技专项(2012E-28)

摘　　要：针对N80油管腐蚀问题,使用APDL编程语言建立了剩余强度数值计算的参数化模型,模型可分析轴长型与短型两种缺陷形式。以某油田油井数据为背景,对比分析了腐蚀缺陷轴向长度、环向宽度、径向深度及油管轴向应力和内压对油管剩余强度的影响。研究成果可为含腐蚀缺陷油管的安全评估提供依据。A finite element model for the residual strength analysis of N80 steel oil tube with corrosion defects was built by the programing language APDL. Based on the actual data of an oil well an one actual oil field, the effects of the axial length, circumferential width and radial depth of the corrosion defect and the internal pressure and axial force on the residual strength of the tube were examined in detail. The proposed method can be referred in the safety evaluation for the oil tubes with corrosion defects.

关 键 词：N80油管腐蚀 剩余强度 非线性有限元分析 APDL编程 安全评价 

分 类 号：TE973.1[石油与天然气工程—石油机械设备]