Depleted shale gas formations as naturally-occurring storage compartments for hydrogen: A molecular-level assessment

A Raza, G Glatz, S Alafnan, M Mahmoud, R Gholami - Fuel, 2023 - Elsevier
The interaction of hydrogen with porous media is of great interest when assessing the
potential of subsurface hydrogen storage. Shale gas formations resemble naturally …

Development of atomistic kerogen models and their applications for gas adsorption and diffusion: a mini-review

A Obliger, C Bousige, B Coasne, JM Leyssale - Energy & Fuels, 2023 - ACS Publications
With the emergence of shale gas, numerous atomic-scale models of kerogen have been
proposed in the literature. These models, which attempt to capture the structure, chemistry …

H2, CO2, and CH4 Adsorption Potential of Kerogen as a Function of Pressure, Temperature, and Maturity

A Raza, M Mahmoud, S Alafnan, M Arif… - International Journal of …, 2022 - mdpi.com
We performed molecular dynamics simulation to elucidate the adsorption behavior of
hydrogen (H2), carbon dioxide (CO2), and methane (CH4) on four sub-models of type II …

Factors influencing hydrogen migration in cap rocks: Establishing new screening criteria for the selection of underground hydrogen storage locations

S Alafnan - International Journal of Hydrogen Energy, 2024 - Elsevier
Safe and efficient underground storage of hydrogen requires cap rocks with effective sealing
capabilities. This study investigates the interplay between various factors and their influence …

Hydrogen diffusion in organic-rich porous media: implications for hydrogen geo-storage

A Raza, S Alafnan, G Glatz, M Arif, M Mahmoud… - Energy & …, 2022 - ACS Publications
Subsurface hydrogen storage for large-scale energy supply to decarbonize a variety of
greenhouse gas-emitting activities is gaining momentum worldwide to combat climate …

Effect of kerogen maturity on the adsorption capacity of CO2 and CH4: A molecular investigation

G Glatz, S Alafnan, R Gholami, A Raza, M Mahmoud… - Fuel, 2022 - Elsevier
The adsorption characteristics of shale under a wide range of pressure and temperature
conditions is essential for successful exploitation and development. In this work, we present …

Controlling parameters of CH4 and CO2 adsorption on shale—a review

MP Mudoi, BK Prusty - Arabian Journal of Geosciences, 2022 - Springer
Adsorption is the principal gas storage mechanism in shale, and detailed knowledge of the
adsorption behaviour is crucial for successful shale gas production. CO2 and CH4 exhibit …

Molecular insights into supercritical methane sorption and self-diffusion in monospecific and composite nanopores of deep shale

F Lyu, Z Ning, S Yang, Z Mu, Z Cheng, Z Wang… - Journal of Molecular …, 2022 - Elsevier
Up to now, a large number of studies have utilized various representative materials to
approximate the replacement of shale and investigate the gas adsorption and diffusion …

Utilization of supercritical carbon dioxide for mechanical degradation of organic matters contained in shales

S Alafnan - Fuel, 2022 - Elsevier
Supercritical carbon dioxide has been recently adopted to induce the initiation and
propagation of hydraulic fractures. A rock matrix initially under reservoir conditions is …

The self-diffusivity of natural gas in the organic nanopores of source rocks

S Alafnan - Physics of Fluids, 2022 - pubs.aip.org
Natural gas stored in source rocks has become a significant contributor to supply the energy
demand. Source rocks are a special subclass of sedimentary rocks where the matrix serves …