投资123亿元兴建的天津钢管公司生产的石油套管,已被我国陆上、海上、沙漠等20多个油田广泛使用,产品质量均达到国际一流水平。 由优质合金钢制造的石油套管,要承受深达几千米的井下地壳活动带来的挤压,必须耐高温、抗气体腐蚀。因此,石油套管是技术含量最高的产品之一。石油套管是一根连一根形成的管柱,螺纹加工的精度、丝扣的密封性都必须达到极高要求。否则,二三百根深入地下的套管,即使只有一根脱扣,也会使耗资几百万元, Investment of 12.3 billion yuan to build the Tianjin Pipe Company production of oil casing has been China’s land, sea, desert and other oil fields more than 20 widely used, product quality have reached world-class level. The oil casing, made of high-quality alloy steel, has to withstand the crushing of downhole crustal activities down to several kilometers and must withstand high temperatures and gas corrosion. Therefore, oil casing is one of the most technologically advanced products. Oil casing is formed by a pipe string, thread machining accuracy, threaded sealing must meet the very high requirements. Otherwise, two or three hundred deep underground casing, even if only one trip, it will cost millions of dollars,