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Activated desorption at heterogeneous interfaces and long-time kinetics of hydrocarbon recovery from nanoporous media

Hydrocarbon recovery from unconventional reservoirs (shale gas) is debated due to its environmental impact and uncertainties on its predictability. But a lack of scientific knowledge impedes the proposal of reliable alternatives. The requirement of hydrofracking, fast recovery decay and ultra-low permeability—inherent to their nanoporosity—are specificities of these reservoirs, which challenge existing frameworks. Here we use molecular simulation and statistical models to show that recovery is hampered by interfacial effects at the wet kerogen surface.

Activated desorption at heterogeneous interfaces and long-time kinetics of hydrocarbon recovery from nanoporous media   Thomas Lee1,2, Lyderic Bocquet1,2,3 & Benoit Coasne1,2,4 1MultiScale Materials Science for Energy and Environment, Joint CNRS-MIT Laboratory, UMI CNRS 3466,  Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. 2Department  of Civil and Environmental Engineering, Massachusetts Institute of Technology,

Modeling adsorption with lattice Boltzmann equation

Here we present and validate a novel lattice Boltzmann model incorporating both adsorbate-adsorbate and adsorbate-adsorbent interactions with hydrodynamics which, for the first time, allows adsorption to be computed with real-life details.

Modeling adsorption with lattice Boltzmann equation   Long Guo1, Lizhi Xiao1, Xiaowen Shan1,2 & Xiaoling Zhang3 1State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China. 2Beijing Aeronautical Science and Technology Research Institute of COMAC, Beijing 102211, China. 3Research Institute of Petroleum Exploration and Development, China National Petroleum

Experimental study of the impact on methane adsorption capacity of continental shales with thermal evolution

In order to reveal the methane adsorption capacity influenced by the geological factors in the process of thermal evolution, a shale sample from Chang-7 Member of the Yanchang Formation in the southeastern part of the Ordos Basin was collected.

Experimental study of the impact on methane adsorption capacity of continental shales with thermal evolution.   Jiaai Zhonga,b, Guojun Chena, Chengfu Lva, Wei Yanga,b, Yong Xua,b, Shuang Yanga,b, Lianhua Xuea a Key Laboratory of Petroleum Resources Research, Gansu Province/Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences,

Impact of Adsorption on Gas Transport in Nanopores

Velocity (line-dot) agrees with the flat type, and the oscillation is covered by noise; the accumulative mass flux curve (dashed line) is only affected by the density distribution.

Impact of Adsorption on Gas Transport in Nanopores   Tianhao Wu1 & Dongxiao Zhang2 1Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China. 2ERE & BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China. Abstract Given the complex nature of the interaction between gas and solid atoms, the development of

Molecular Simulation of Shale Gas Adsorption and Diffusion in Clay Nanopores

The adsorption isotherms of CH4 have been investigated by GCMC simulations at different temperatures and various pore sizes. In the montmorillonite (MMT) clays without a cation exchange structure, from the density profile, we find the molecules preferentially adsorb onto the surface, and only an obvious single layer was observed.

Molecular Simulation of Shale Gas Adsorption and Diffusion in Clay Nanopores Hongguang Sui, Jun Yao * and Lei Zhang   School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266580, China. Academic Editors: Qinjun Kang and Li Chen.   Abstract The present work aims to study the adsorption behavior and dynamical properties of CH4 in

Methane storage in nanoporous material at supercritical temperature over a wide range of pressures

The methane storage behavior in nanoporous material is significantly different from that of a bulk phase, and has a fundamental role in methane extraction from shale and its storage for vehicular applications.

  Methane storage in nanoporous material at supercritical temperature over a wide range of pressures   Keliu Wu1, Zhangxin Chen1, Xiangfang Li2 & Xiaohu Dong1,2   1The Department of Chemical and Petroleum Engineering, University of Calgary, Alberta T2N1N4, Canada. 2Key Laboratory for Petroleum Engineering of the Ministry of Education, China University of Petroleum, Beijing 102249,

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