Model for Surface Diffusion of Adsorbed Gas in Nanopores of Shale Gas Reservoirs
Model for Surface Diffusion of Adsorbed Gas in Nanopores of Shale Gas Reservoirs
复制标题
页岩气藏纳米孔吸附气体表面扩散模型
DOI:
10.1021/ie504030v
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发表时间:
2015-03
影响因子:
4.2
通讯作者:
Chen Zhangxin
中科院分区:
文献类型:
--
作者:
Wu Keliu;Li Xiangfang;Wang Chenchen;Yu Wei;Chen Zhangxin
Surface diffusion plays a key role in gas mass transfer due to the majority of adsorbed gas within abundant nanopores of organic matter in shale gas reservoirs. Surface diffusion simulation is very complex as a result of high reservoir pressure, surface heterogeneity, and nonisothermal desorption in shale gas reservoirs. In this paper, a new model of surface diffusion for adsorbed gas in shale gas reservoirs is established, which is based on a Hwang model derived under a low pressure condition and considers the effect of adsorbed gas coverage under high pressure. Additionally, this new model considers the effects of surface heterogeneity, isosteric sorption heat, and nonisothermal gas desorption. Results show that (1) the surface diffusion coefficient increases with pressure and temperature, while it decreases with activation energy and gas molecular weight; (2) contributions of viscous flow, Knudsen diffusion, and surface diffusion to the total gas mass transfer are varying during the development of shal...
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DOI:
--
发表时间:
2010
影响因子:
3
作者:
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通讯作者:
L. Darken;M. Aime
影响因子:
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DOI:
10.15530/urtec-2014-1921039
发表时间:
2014-08
期刊:
--
影响因子:
--
作者:
Keliu Wu;Xiangfang Li;Chenchen Wang;Wei Yu;Zhangxin Chen
通讯作者:
Keliu Wu;Xiangfang Li;Chenchen Wang;Wei Yu;Zhangxin Chen
DOI:
--
发表时间:
2008
期刊:
Journal of Chemical Industry and Engineering
影响因子:
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