中海油项目管道安装施工方案目 录一、工程概述..........................................................................................................................2二、编制依据 .......................................................................................................................... 2 三、施工程序和要求 ............................................................................................................... 3 四、管道组成件检验 ............................................................................................................... 5 五、预制及安装 ....................................................................................................................... 7 5.1 预制 .................................................................................................................................... 7 5 。 2 管道安装 .......................................................................................................................... 8 六、焊接 ................................................................................................................................. 11 6 。 1 一般规定 ........................................................................................................................ 11 6 。 2 焊接工艺要求 ................................................................................................................ 12 6 。 3 焊接质量检验 ................................................................................................................ 15 七、管道系统试验 ................................................................................................................. 16 7.1 管道系统压力试验 ........................................................................................................... 16 7.2 气体泄漏试验和真空度试验 ........................................................................................... 19 7 。...
