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给他喝咖啡可以让他精神焕发,义乌源需要准义乌源提高学习或工作效率。
找货找另一个祝福:祝你开业顺利。祝您行业和谐、手货繁荣、好运。
义乌源需要准义乌源我现在戒了~~问题10:电子烟真的有害吗。找货找967 人被捕Saretta(第22 集) G(第50 集) K Crew(第70 集) 阳岛学生太极(第67 集) 幽灵地球(第71 集) 阳岛学生太极(第73 和74 集) Krihubulinch (虎林池) ):出现在第75集中。小鸭子在水里抓鱼,手货突然他听到小公鸡呼救,赶紧游到小公鸡身边,让小公鸡坐在自己的背上。
万宝路软红15元,义乌源需要准义乌源万宝路硬红16元,万宝路软红016元,万宝路硬红32元迪拜版。铁塔猫酸奶是用来熏珠子里面的味道的产品,找货找我个人认为是铁塔猫中最好的。
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找货找假烟的颜色和光泽较差。关键词:沁水盆地 煤层气 煤储层 CO2&N2 提高采收率 作者简介: 张松航,手货男,手货博士,讲师; 中国地质大学 ( 北京) ,北京市海淀区学院路 29 号 100083; Tel:13522441469: E mail: zshangdream@ 1 com. Numerical Simulation of CO2&N2Enhanced Coalbed Methane Recovery on Jincheng Anthracite Coal Reservoir ZHANG Songhang1,TANG Shuheng1,PAN Zhejun2, TANG Dazhen1,LI Zhongchen1,ZHANG Jingping1 ( School of Energy Resources,China University of Geosciences,Beijing 100083,China; CSIRO Earth science and resources engineering,Melbourne 3168,Australia) Abstract: In this paper,the gas production and CO2&N2injection processes of the production well and the injection well with 200 m spacing were respectively studied using the coal reservoir simulator,SIMEDWin,devel- oped by CSIRO Earth Science and Resources Engineering,Australia. The coal reservoir and coal property parame- ters used in this simulation were full account of the in-situ coal geological conditions of the anthracite coal in Jincheng district. In addition,the hydraulic fracturing which was widely used as an enhanced methane recovery technology was also taken into account. The simulation results show that the higher of the N2content in the mixed gas,the higher of the CBM output in the early stage of the production. But N2content show very small effect on the long term CBM production. In addition,the injected mixed gas of CO2&N2with different ratio has little effect on the water production. The cleat porosity of the coal reservoir changing dynamically under the effect of desorption of CH4,adsorption of CO2&N2and changing of pore pressure during the gas and water production process. Considering the production of CBM and the sequestration of CO2for CO2&N2ECBM the suggestion is that appropriately increase the nitrogen component in mixed gas improving the reservoir permeability in the early production stage,and then inject the pure carbon dioxide. Keywords: Qinshui Basin; coalbed methane; coal reservoir; CO2&N2; ECBM 全球变暖问题已经越来越严重,如何减少全球变暖的“主犯”———二氧化碳气体的排放,已经成为了一个亟待解决的全球性热点问题。
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