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Adsorption

Adsorption in shale gas play has an important role as storage gas source since the nanopores inside the kerogen and clay minerals generate and amazing surface area to adsorb gas molecules.
This category shows new researches and papers explaining this phenomenon and their impact in the shale production and reserves estimation.

Shale high pressure isothermal adsorption curve and the production dynamic experiments of gas well

by Emanuel Martin - 0
Fig. 2. Instrument for modeling the shale gas development characteristics.

The study results show that the isothermal adsorption law of the shale reservoir under high pressure was different from the conventional low pressure. The high pressure isothermal adsorption curve had the maximum value in excess adsorption with pressure change, and the corresponding pressure was the critical desorption pressure. The high

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Molecular simulation of shale gas adsorption in organic-matter nanopore

by Emanuel Martin - 0
Fig. 2. Configuration of CH4 and CO2 adsorbed by organic pore (burial depth 4 km). (a) Initial configuration of CH4 adsorbed (b) Initial configuration of CO2 adsorbed; (c) Initial configuration of CH4/CO2 adsorbed;

The results indicated that the adsorptions of CH4 and CO2 were physical and the optimal storage depth was 2 km; The mixed adsorption data showed the rationality of exploit shale gas by injecting CO2 to exchange CH4, and the optimal burial depth was 4 km; The relative density of CH4

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Unconventional resource’s production under desorption-induced effects

by Emanuel Martin - 0
Fig. 1. Desorption isotherms for four U.S. shale formations.

Hence, it is essential to investigate the effects of induced permeability, porosity, and stress by desorption on ultimate hydrocarbon recovery. We have developed a numerical model to study the effect of changes in porosity, permeability and compaction on four major U.S. shale formations considering their Langmuir isotherm desorption behavior. These resources

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Isothermal Adsorption and Desorption Properties of Marine Shales on Longmaxi Shale in South China

by Emanuel Martin - 0
Figure 1. Work principles of MSB adsorption instrument.

And adsorption potential theory was used to explain the adsorption and desorption process. According to the results, the shale samples have a high level of organic carbon content with the same organic matter type II1 and high degree of maturation. The volume of adsorption increases rapidly and slows down to

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Investigation of methane adsorption on chlorite by grand canonical Monte Carlo simulations

by Emanuel Martin - 0
Investigation of methane adsorption on chlorite by grand canonical Monte Carlos Simulations

Abstract In this paper, the methane adsorption behaviours in slit-like chlorite nanopores were investigated using the grand canonical Monte Carlo simulation method, and the influences of the pore sizes, temperatures, water, and compositions on methane adsorption on chlorite were discussed. Our investigation revealed that the isosteric heat of adsorption of methane

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

by Emanuel Martin - 0
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

by Emanuel Martin - 0
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

by Emanuel Martin - 1
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

by Emanuel Martin - 0
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

by Emanuel Martin - 0
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

by Emanuel Martin - 0
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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