HS110-13Cr抗CO_(2)腐蚀套管的开发  

Development ofФ139.7 mm×9.17 mm HS110-13Cr Anti-CO_(2) corrosion Casing

作　　者：王建华 李端正 WANG Jianhua;LI Duanzheng(Hunan Valin Iron&Steel Group Technology Research Institute,Changsha 410011,China;Hengyang Valin Steel Tube Co.,Ltd.,Hengyang 421001,China)

机构地区：[1]湖南钢铁集团技术研究院有限公司,湖南长沙410011 [2]衡阳华菱钢管有限公司,湖南衡阳421001

出　　处：《钢管》2024年第4期33-37,共5页Steel Pipe

摘　　要：根据套管的服役环境和性能要求开发HS110-13Cr抗二氧化碳腐蚀套管。重点进行了钢的化学成分设计和热处理工艺探索,通过热力学软件计算得到该钢种在不同回火温度条件下的强度和冲击韧性曲线。研究发现该钢种在特定的回火温度下存在冲击功急剧下降的情况,通过扫描电镜观察不同回火温度条件下钢的冲击试样断口,发现570℃回火试样冲击断口为脆性沿晶断裂,因此热处理工艺需避开此回火脆性区。开发并生产出的产品性能达到了客户要求,通过了腐蚀评价,并成功应用于国内某油田,满足了二氧化碳服役环境的使用要求。In accordance with the service conditions and relevant performance requirements for the casing,the HS110-13Cr anti-CO_(2) corrosion casing is developed.In the development process focused are the design of the chemical composition of the steel as made for the said casing and research on the heat treatment process for it.And the thermodynamic software is used to calculate the strengths and impact toughness curves of the said steel at different tempering temperatures.It is revealed via the research that the said impact energy is going down dramatically at specified temperature.And the fractures of the impact test specimen of the steel are observed with the SEM,finding that the fracture of the specimen as tempered at 570℃is a kind of brittle intergranular fracture.Accordingly when using relevant heat treatment process,it is necessary to avoid the tempering brittle zone.The performance of the above mentioned product as developed and manufactured is satisfactory to the customer requirements.Furthermore the casing is passed the corrosion evaluation,and then is successfully used in a certain domestic oil field,having met the applicable requirements for the CO_(2) service environment.

关 键 词：无缝钢管 套管 13Cr 成分设计 热处理工艺 回火脆性 耐腐蚀 

分 类 号：TE931.2[石油与天然气工程—石油机械设备] TG142.1[一般工业技术—材料科学与工程]