Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing  

作　　者：Chenglong ZHOU Guojin ZHU Yongxiang XU Jifei YU Xiaoliang ZHANG Hongzhi SHENG 

机构地区：[1]Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190,China [2]CNOOC Research Center, Beijing 100028, China

出　　处：《Frontiers in Energy》2015年第2期142-147,共6页能源前沿（英文版）

摘　　要：The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing （VIT）, indicated that the failure of VIT could be decreased but could not be avoided. To solve this problem, some measures by using non-vacuum materials were proposed and analyzed in this paper. The results show that to fill the tubing with foam-glass beads or high pressure argon may lead to a good performance.The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing （VIT）, indicated that the failure of VIT could be decreased but could not be avoided. To solve this problem, some measures by using non-vacuum materials were proposed and analyzed in this paper. The results show that to fill the tubing with foam-glass beads or high pressure argon may lead to a good performance.

关 键 词：hydrogen permeation vacuum insulated tub-ing cyclic steam stimulation insulation material THERMALCONDUCTIVITY foam-glass 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] TM561.2[电气工程—电器]