TP-Ti-110钢级TP-G2(Ti)特殊螺纹钛合金油管的研发  

R & D of TP-Ti-110 TP-G2(T)iTitanium Alloy Oil Tubing with Premium Connection

作　　者：周晓锋[1] 孙宇[1] 张传友[1] 杨永昌[1] 史彬[1] 梅丽[1] ZHOU Xiaofeng;SUN Yu;ZHANG Chuanyou;YANG Yongchang;SHI Bin;MEI Li(Tianjin Pipe (Group)Corporation,Tianjin 300301,China)

机构地区：[1]天津钢管集团股份有限公司,天津300301

出　　处：《钢管》2019年第1期20-23,共4页Steel Pipe

基　　金：国家重点研发计划项目(2016YFB0301203);海洋经济创新发展区域示范项目(BHSF2017-10)

摘　　要：介绍TP-Ti-110钢级TP-G2(Ti)特殊螺纹钛合金油管研发情况。针对P110钢级油井管的材料性能需求,调研现有钛合金的品种及其性能,确定新型TA31(Ti80)钛合金作为开发TP-Ti-110钢级钛合金油管的材料;针对钛合金油管的使用要求设计,在偏梯形螺纹的基础上开发出专用气密封特殊螺纹TP-G2(Ti);对TP-Ti-110钢级TP-G2(Ti)特殊螺纹钛合金油管的力学性能、整管性能和抗腐蚀性能进行综合评价试验。开发的TP-Ti-110钢级TP-G2(Ti)特殊螺纹钛合金油管完全满足元坝气田高腐蚀环境使用要求,并且首次成功进行全井下井应用。Elaborated here in the essay are the research and development of the TP-Ti-110 TP-G2(Ti)titanium allov oil tubing with premium connection.According to the requirements for material properties of the P110 oil well pipe,the types and performances of the currently-used titanium alloys are investigated.As a result it is determined to use the new type TA31 (Ti80)titanium alloy as the material of the TP-Ti-110 titanium alloy oil tubing.As per the design of application requirement of the titanium alloy oil tubing,and based on the buttress thread,the special air-tight premium connection TP-G2(Ti)is developed.Comprehensive evaluation tests are conducted to the TP-Ti-II0 TP-G2(Ti)titanium alloy oil tubing with premium connection to identify its mechanical properties,over-length performance and corrosion resistance. The said oil tubing as developed is quite satisfactory to the application requirements for the highly-corrosive service environment of the Yuanba Natural Gas Field,and has been successfully used for first all downhole application.

关 键 词：油管 钛合金 TP-Ti-110钢级 TP-G2(Ti)特殊螺纹 性能 

分 类 号：TG335.71[金属学及工艺—金属压力加工]