置换法开采天然气水合物的实验研究  

Experimental study on exploitation of natural gas hydrate by replacement with CO_2

作　　者：王乐[1] 祁影霞[1] 邢艳青[1] 喻志广[1] 张华[1] 

机构地区：[1]上海理工大学制冷技术研究所,上海200093

出　　处：《现代化工》2014年第4期89-92,共4页Modern Chemical Industry

基　　金：上海市研究生创新基金项目(JWCXSL1302)

摘　　要：在模拟海底多孔介质的实验条件下,研究了质量分数同为0.05%的不同种类的添加剂SDS、THF、TBAB对CO2置换天然气水合物的影响,与纯水体系的对比发现,在此质量分数下TBAB置换率最高,SDS次之,THF置换率低于纯水。同时研究了质量分数分别为0.05%和0.03%的SDS添加剂对置换速率的影响。研究了在模拟海底盐度的情况下,置换反应受到阻碍的原因。Under the simulated condition of porous media on the sea bed,the influences of different kinds of additives such as SDS,THF and TBAB with 0.05％ concentration,on the exploitation of natural gas hydrate by replacement with CO2 are studied.Compared with the pure water system,the replacement order is shown as follows：TBAB ＞ SDS ＞ THF.The effects of 0.05％ and 0.03％ of SDS on the replacement efficiency are also investigated.Under the simulated salt water condition,the reasons why the replacements are blocked by salt water are studied as well.

关 键 词：天然气水合物 CO2水合物 置换 添加剂 

分 类 号：TE37[石油与天然气工程—油气田开发工程]