适用于致密气藏钻完井的新型超级13Cr油钻杆管材性能测试  

Performance test of a new super 13Cr oil drill pipe used for tight gas reservoir drilling and complication

作　　者：曾德智[1] 田刚[1] 施太和[1] 侯铎[1] 贾华明[2] 卢强[2] 赵鹏[3] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室 [2]中国石油塔里木油田分公司 [3]宝山钢铁股份有限公司

出　　处：《石油与天然气化工》2014年第1期58-61,共4页Chemical engineering of oil & gas

基　　金：国家自然科学基金"腐蚀与脉动冲击载荷共同作用下超高强度钻具疲劳损伤行为与控制机制研究"(51374177);国家自然科学基金"基于材料非线性随动强化的双金属复合管成型机理及其强度特性研究"(51004084)

摘　　要：为满足塔里木致密气藏氮气钻完井需求,研制了一种新型高强度超级13Cr油钻杆。采用MTS试验机对新型超级13Cr油钻杆和S135钻杆的强度性能进行了对比测试;采用示波冲击试验机对新型超级13Cr油钻杆和S135钻杆的冲击性能进行了对比测试;采用高温高压釜对新型超级13Cr油钻杆和S135钻杆的耐CO2腐蚀性能进行了对比测试。结果表明:新型超级13Cr油钻杆具有良好力学性能和耐腐蚀性能,其屈服强度937 MPa、抗拉强度976 MPa、延伸率为21.5%、室温冲击功162.82J。其拉伸性能与S135接近,冲击性能明显优于S135;模拟工况下,新型超级13Cr油钻杆气相腐蚀速率0.003 6mm/a、液相腐蚀速率0.039 4mm/a。因此,新型超级13Cr油钻杆既能满足钻井的需要又能满足完井开采的要求,可为含CO2致密砂岩气田氮气钻完井作业提供支持。A new high strength super 13Cr oil drill pipe was developed for tight gas reservoir exploitation in Tarim oilfield .This paper studies the tensile property and impact property of S135 dirll pipe and new super 13Cr oil drill pipe by a material tensile testing machine and a instrumen-ted impact testing machine respectively .Their corrosion resistance to CO2 is also studied through high temperature and high pressure autoclave test .The results show that the ultimate strength of the new super 13Cr steel reaches 976 MPa ,with the yielding strength 937 MPa and elongation 19 .0% .Its impact energy reaches 162 .82 J .Compared with S135 steel ,the new super 13Cr steel has similar strength property and better impact property .Under the test condition ,the corrosion rate of the super 13Cr steel is 0 .003 6 mm/a in gas phase and 0 .039 4 mm/a in liquid phase . Therefore ,the new super 13Cr oil drill pipe can meet the requirement of drilling and well compli-cation .The new oil drill pipe could provide support for tight gas reservoir nitrogen drilling and well complication .

关 键 词：致密砂岩气 新型超级13Cr油钻杆 S135钻杆 力学性能 腐蚀速率 

分 类 号：TE925.3[石油与天然气工程—石油机械设备] TE921.2