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由成都无缝钢管厂和四川石油管理局联合试制的CS—90SS高强度、抗硫化氢腐蚀石油套管,经两年多来的材质评选、钢水冶炼、管材轧制、抗硫性能检测、螺纹加工、现场产品检验等一系列准备工作,于1992年4月初,在四川石油管理局川东钻探公司铁山6井顺利下井成功。铁山6井设计油层套管下入深度在4000m左右。在井队人员精心检查、精心操作精心施工下,400多根套管无一根损坏的下到预计深度。注水泥固井后,进行套管水压密封试验,达到
CS-90SS High-strength, Hydrogen Sulfide-Corrosion-resistant Oil Casing jointly trial-produced by Chengdu Seamless Steel Tube Factory and Sichuan Petroleum Administration Bureau. After more than two years of material selection, molten steel smelting, pipe rolling, sulfur resistance testing, Processing, on-site product inspection and a series of preparatory work, in early April 1992, Sichuan Petroleum Administration East Sichuan drilling company Tieshan 6 wells successfully went down. Tieshan well 6 designed casing depth of about 4000m. In the careful examination of the well team personnel, meticulous operation and careful construction, more than 400 casing without a damaged down to the expected depth. After cementing cementing, casing hydraulic seal test to achieve