地下洞库超深竖井管道系统的安装施工方法  

The installation and construction method of pipeline system in ultradeep vertical shaft of underground cavern

作　　者：徐跃忱 孙成全 王宝忠 周立欣 董军 祖宝华 白大勇 

机构地区：[1]中国石油管道局工程有限公司第一分公司 [2]中国石油管道局工程有限公司东南亚(东亚,南亚)项目经理部

出　　处：《油气储运》2017年第5期573-578,共6页Oil & Gas Storage and Transportation

基　　金：中国石油天然气集团公司科研项目"大型炼油化工装置;储罐安装工程技术";2011GJTC-04-05-01

摘　　要：某国家石油储备库工程设有8口深度超过100 m的进、出油竖井,采用在地面分段预制管道、先安装管道再安装钢支撑、锚固环的施工方式,成功完成了超深竖井内管道系统的安装施工。介绍了该施工方法的特点,探讨了地面分段预制管道、射线机可视化精确定位、桁架与吊篮系统的制作、枷锁式工装的制作等关键施工方法。主要工序包括:施工准备、井口系统及附件的安装、管道分段预制、竖井内管道安装、桁架与吊篮系统制作安装、竖井内钢支撑安装、竖井内防腐施工、管底泵套安装、管道试压。该方法避免了井内钢支撑结构对管道吊装入井的影响,减少了井内高空作业的工作量,降低了高空作业的安全隐患和施工成本,提高了整体安装功效。In a certain national petroleum reserve cavern, there are eight oil inputting and outputting vertical shafts which are over 100 m deep. The pipeline system is successfully installed and constructed in the ultra-deep vertical shafts by means of sectional pipeline prefabrication on the ground, pipeline installation followed by installation of steel support and anchor ring. In this paper, the features of this construction method were introduced. And the key construction techniques were discussed, e.g. sectional pipeline prefabrication, visual precise positioning based on X-ray machine, manufacture of steel truss and basket system, and preparation of yoke-style assistant platform. The main procedures include construction preparation, installation of wellhead system and accessories, sectional pipeline prefabrication, installation of pipeline in vertical shaft, manufacture and installation of steel truss and basket system, installation of steel support in vertical shaft, anticorrosion work in vertical shaft, installation of pump block at the bottom, and pipeline pressure test. By virtue of this method, the lifting of pipeline into shaft is free of the effect of steel support, the aerial workload and its potential safety hazard are reduced, the construction cost is cut down, and the installation efficiency is overall improved. （2 Figures, 1 Table, 20 References）

关 键 词：竖井 分段预制 精确定位 枷锁式工装 钢支撑 

分 类 号：TE822[石油与天然气工程—油气储运工程]