油管道改气管道材料适用性评价  

Fitnessforservice assessment on the material of linepipe for transmitting gas instead of oil.

作　　者：赵新伟[1] 路民旭[1] 白真权[1] 罗金恒[1] 李平全[1] 井一平[2] 黄一新 周方勤[3] 刘海峰[3] 

机构地区：[1]中国石油天然气集团公司石油管材研究所 [2]新疆石油管理局 [3]四川石油管理局

出　　处：《石油机械》1999年第4期14-17,共4页China Petroleum Machinery

摘　　要：测试分析了克乌（克拉玛依－乌鲁木齐）复线５２９ｍｍ×７（８）ｍｍ管道材料化学成分、拉伸性能、夏比冲击韧性、金相组织和硬度等理化性能，评价了该管道由输油改输气后管材本身的适用性，包括材料抗脆断能力和延性断裂止裂能力评价及酸性气体环境下的应力腐蚀敏感性和氢致开裂敏感性分析。结果表明，若能严格控制气质条件，加强对天然气的脱硫、脱水，使进气质量达到ＳＹＪ—７５１４—８８中Ａ类Ⅱ级要求。This article makes a test and analysis of the chemical compositions,tensile strength,Charpy impact value,microstructure and hardness of the material of 529mm diameter and 7(8)mm wall thickness pipeline from Urumuqi to Karamay,which is expected to be used for transmitting gas instead of transmitting oil as in the past.A fitnessforservice assessment on the material of the pipeline is made,including the evaluation of antibrittle fracture ability and crackarrest ability and analysis of the sensitivity of sulfide stress corrosion cracking.The result of the assessment indicates that the pipeline can be used for transmitting natural gas if the desulfuration and desiccation of natural gas are executed strictly.

关 键 词：输油管道 输气管道 材料 性能 改造 

分 类 号：TE973.104[石油与天然气工程—石油机械设备]