%0 Journal Article
%T Experimental Study of Supercritical Carbon Dioxide Seepage Flow in Low Permeability Coal Seam<br>超临界CO2在低渗透煤层中渗流规律的实验研究
%A SUN Ke-ming
%A REN Shuo
%A ZHANG Shu-cui
%A CHEN Zhi-yu
%A WU Di
%A YUE Li-xin
%A LI Zan
%A <br>孙可明
%A 任硕
%A 张树翠
%A 陈治宇
%A 吴迪
%A 岳立新
%A 李赞
%J 实验力学
%D 2013
%I 
%X A series of seepage experiments of supercritical CO2 were carried out under different conditions of pore pressure and temperature based on a self-developed THM three field coupled seepage experiment system. Relationship among the flow velocity and the pressure gradient at different temperatures were obtained. That is non-Darcy seepage regulation of supercritical CO2 in low permeability seam, which means a positive exponential relation between the flow velocity and pressure gradient. The permeability coefficient increases along with the pressure gradient increase, and presents a positive exponential relationship; under the same volume stress and pressure gradient conditions, the higher the temperature is, the faster the flow velocity; when temperature approaches the critical point, the flow velocity and the permeability coefficient increase faster.
%K 超临界CO2
%K 低渗透煤层
%K 渗流
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=49067A0A0D864088C06A84AACB51A5B2&aid=E8C0EE8DF12B11F93FE25D8590067014&yid=FF7AA908D58E97FA&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=7555FB9CC973F695&eid=2B5DE8A23DCEED39&journal_id=1001-4888&journal_name=实验力学&referenced_num=0&reference_num=0