Analysis of the wetting and exothermic properties of preoxidized coal and the microscopic mechanism

R Pan, D Hu, X Han, J Chao, H Jia - Energy, 2023 - Elsevier
In the processes of coal mining and transportation, low-temperature oxidation occurs
continuously, and it is accompanied by multiple wetting. The effect of water on coal …

The influence of inorganic salt on coal-water wetting angle and its mechanism on eliminating water blocking effect

L Si, Y **, J Wei, H Wang, H Zhang, G Xu… - Journal of Natural Gas …, 2022 - Elsevier
Hydraulic stimulation techniques are widely used to improve the CBM production. However,
the water blocking effect severely restricts the stimulation effect. In this work, the different …

Gas-liquid competitive adsorption characteristics and coal wetting mechanism under different pre-adsorbed gas conditions

L Si, N Ding, J Wei, L Sheng, L Wang, Z Li, X Chen - Fuel, 2022 - Elsevier
Coal seam water injection was widely used to prevent mine gas and dust disasters. It is
undeniable that the gas adsorbed on coal surface can influence the coal-water wettability. In …

Rock-Wettability Impact on CO2-Carbonate Rock Interaction and the Attendant Effects on CO2Storage in Carbonate Reservoirs

A Al-Yaseri, N Yekeen, HS Al-Mukainah… - Journal of Natural Gas …, 2022 - Elsevier
Deep saline aquifers and depleted carbonate reservoirs are generally considered promising
locations for subsurface CO 2 storage. However, carbonate minerals particularly calcite can …

Experimental study on mineral variation in coal under microwave irradiation and its influence on coal microstructure

N Yang, G Hu, W Qin, J Huang - Journal of Natural Gas Science and …, 2021 - Elsevier
Microwave technology is regarded as a promising new method for coalbed methane
production. An investigation was carried out using a self-developed controllable microwave …

Water-bearing characteristics of coal reservoirs and its control mechanism on coalbed methane production

S ZHANG, S TANG, S MENG, D XIN… - Journal of China Coal …, 2023 - mtxb.com.cn
Water-bearing characteristics of original coal reservoir not only determine the application of
coalbed methane (CBM) adsorption and accumulation theory, but also affect the selection of …

Seepage characteristics of mixed-wettability porous media on the phase-field model

S Chen, J Zhang, MZ Mohammed, F Li, Z Yan… - ACS …, 2022 - ACS Publications
Clarifying the microscale gas–water flow behaviors in a mixed wettability reservoir is of great
importance for underground engineering. A numerical model of mixed wettability based on …

Effects of Sub- and Supercritical CO2 on Coal Diffusivity and Surface Thermodynamics

W Guang, X Liu, Z Zhang, P Luo - Energy & Fuels, 2022 - ACS Publications
The diffusion mechanism of CH4 and CO2 on the coal matrix is fundamentally important for
enhanced coal seam gas recovery and long-term CO2 sequestration in coal reservoirs. To …

An improved capillary pressure model for coal seam gas reservoirs

Y Zhu, Z Shi, H **ng, Z Chen - Journal of Natural Gas Science and …, 2022 - Elsevier
Coal cleats are the main flow path for gas and water during coal seam gas (CSG)
production, and the two-phase flow behaviour in coal cleats is sensitively affected by the …

Dewatering optimization of coal seam gas production wells: a review and future perspectives

Y Zhu, Z Shi, S Zuo, Q Qu, X Yan, D Kuznetsov… - Energy & …, 2022 - ACS Publications
Coal seam gas (CSG), as a type of unconventional gas resource, is playing an increasingly
important role in energy generation and transition to renewables, as the world takes action …