TP170P大口径高钢级射孔枪管开发  

Development of TP170P Big Size High-grade Steel Gun Pipe

作　　者：周家祥[1] 吴亮亮 张旭[1] 吴永超[1] 安盛岳 Zhou Jiaxiang;Wu Liangliang;Zhang Xu;Wu Yongchao;An Shengyue(Technology Center,Tianjin Pipe Corporation,Tianjin 300301)

机构地区：[1]天津钢管制造有限公司技术中心,天津300301

出　　处：《特殊钢》2023年第3期24-28,共5页Special Steel

摘　　要：随着油层套管的口径越来越大,下井深度越来越深,对大口径射孔枪管的强韧性要求也越高,为保证射孔作业安全并提高射孔枪管抗外挤能力,必须提高枪管强度并匹配较高的冲击韧性。天津钢管制造有限公司开发了TP170P,Φ244.48 mm×11.99 mm大口径高强度射孔枪管,热处理后屈服强度≥1 200 MPa,0℃夏比冲击功纵向达到110 J、横向在85 J左右。同时具备良好的高温拉伸性能和优良的低温冲击韧性。在300℃高温条件下屈服强度仍然达到1 056 MPa,低温冲击韧脆转变温度小于-40℃,可以保证枪管在高温超深井服役,并在寒冷地区具有低温韧性,扩大了产品的使用范围。同时,具有良好的抗硫化氢应力腐蚀能力、抗氢致开裂能力及轧制热变形能力。As the diameter of the casing in the reservoir becomes larger and larger,and the well go deeper and deeper,the demand for strength and toughness of large-diameter perforating barrel becomes stronger.In order to ensure the safety of the perforating operation and improve the ability of the perforating barrel to resist external extrusion,it is necessary to improve the strength of the barrel and match higher impact toughness.Tianjin Pipe Corporation has developed big sizeΦ244.48 mm×11.99 mm high strength TP170P grade gun pipe.After heat treatment,the yield strength is over 1200 MPa,and CVN 0℃impact energy reaches to 110 J for longitudinal and 85 J for transversal.The gun pipe has good high temperature tensile performance and excellent low temperature impact toughness.At the high temperature condition of 300℃,the yield strength still reaches 1056 MPa,and the low temperature impact toughness and brittle transition temperature is less than-40℃,this character assures the gun pipe can be used safely in the high temperature and ultra-deep well,it has cold toughness in cold areas,expanding the use range of the products.In addition,the steel grade has good resistance to hydrogen sulfide stress corrosion,hydrogen cracking ability and rolling thermal deformation ability.

关 键 词：TP170P 大口径 高强度 抗挤毁 射孔枪管 

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]