火驱稠油热采井TP90H-9Cr套管热处理工艺优化试验研究  

Experimental Study on Process Optimization of Heat Treatment of TP90H-9Cr Casings for Thermal Recovery Well for in-situ Combustion Super Heavy Oil

作　　者：扈立[1] 赵强[2] 李恒政[1] 王正[1] 张旭[1] 

机构地区：[1]天津钢管集团股份有限公司,天津300301 [2]中国石油新疆油田分公司,新疆克拉玛依834000

出　　处：《钢管》2016年第5期9-14,共6页Steel Pipe

摘　　要：分析了火驱稠油热采井套管钢种的化学成分特点和技术要求,选择电站锅炉用10Cr9Mo1VNb钢作为火驱稠油热采井套管的替代钢种,并对其原有的热处理工艺进行优化改进。结果表明:经过热轧态直接回火处理的TP90H-9Cr套管材料,其高温强度、抗氧化性能和抗CO_2腐蚀性能满足使用要求;TP90H-9Cr套管的室温组织存在一定程度的轧态组织位相遗传,但通过合金元素的固溶强化、析出强化可使其各项性能指标满足要求。Analyzed in the essay are the chemical composition characteristics and technique requirements of the steel types of casings for thermal recovery well for in-situ combustion super heavy oil. 10Cr9MolVNb steel normally used on power plant boiler is used as a substitution steel type for casings for thermal recovery well for in-situ combustion super heavy oil, with it＇ s original heat treatment process being optimized. The research shows that the TP90H-9Cr casing which is tempered right after hot-rolling is satisfactory to the application requirements in terms of elevated-temperature strength, oxidation resistance and CO2 corrosion resistance. Although the microstructure of a TP90H-9Cr casing under room temperature is inherited from that of the as-rolled pipe to a certain extent, the desirable performance indexes are able to be obtained by means of solution strengthening and precipitation strengthening of alloy elements.

关 键 词：套管 P91 火驱稠油热采井 热处理 热轧态 回火 

分 类 号：TE931.2[石油与天然气工程—石油机械设备] TG161[金属学及工艺—热处理]