SEW石油套管的开发  

Research and Development of SEW Oil Casing

作　　者：王军[1,2] 毕宗岳[1,2] 张峰[1,2] 李周波[1,2] 

机构地区：[1]国家石油天然气管材工程技术研究中心,陕西宝鸡721008 [2]宝鸡石油钢管有限责任公司,陕西宝鸡721008

出　　处：《钢管》2013年第6期39-45,共7页Steel Pipe

摘　　要：采用高频电阻焊、热张力减径及整管热处理工艺开发了J55、N80Q及P110钢级SEW石油套管,对开发的SEW石油套管进行了力学性能和抗腐蚀性能测试。结果表明:同石油套管用无缝钢管相比,SEW石油套管在尺寸精度、残余应力及抗外压挤毁强度方面具有较大的优势;采用SEW工艺,较好地解决了焊缝冲击韧性低及抗腐蚀性能差的问题。分析认为:在钢级和规格一定的情况下,采用SEW石油套管可解决选用石油套管用无缝钢管带来的抗挤强度不足问题,满足油田用户的需求。SEW oil casings in steel grades of J55, N80Q and P110 are developed by means of employment of such processes as HFW, hot stretch-reducing and pipe over-length heat treatment. The mechanical properties and corrosion resistance of the SEW oil casing are tested. The results show that the data of dimensional accuracy, residual stress and external collapse strength of the SEW casing are much better than the seamless oil casing. Moreover, thanks to the SEW process, the problem of low impact toughness and poor corrosion resistance of weld seam is properly fixed. Based on the above mentioned analysis, it is concluded that in case of the same specific steel grade and size, using the SEW casing can avoid the shortcoming of poor collapse strength as staying with the seamless casing so as to meet the requirements by oilfield end users.

关 键 词：石油套管 高频电阻焊 热张力减径 整管热处理 抗挤强度 沟槽腐蚀 HIC SSCC 

分 类 号：TG335.75[金属学及工艺—金属压力加工]