Numerical simulation on physical composite stimulation and geothermal development performance of hot dry rock: A Case study from Matouying Uplift, China

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 125714 - 125714

Published: Feb. 1, 2025

Language: Английский

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Anisotropic strain of anthracite induced by different phase CO2 injection and its effect on permeability

Energy, Journal Year: 2023, Volume and Issue: 284, P. 128619 - 128619

Published: Aug. 1, 2023

Language: Английский

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Supercritical methane adsorption in coal and implications for the occurrence of deep coalbed methane based on dual adsorption modes

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145931 - 145931

Published: Sept. 9, 2023

Language: Английский

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Pore and permeability changes in coal induced by true triaxial supercritical carbon dioxide fracturing based on low-field nuclear magnetic resonance

Energy, Journal Year: 2023, Volume and Issue: 286, P. 129492 - 129492

Published: Oct. 28, 2023

Language: Английский

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Molecular simulations of the effects of CO2 and N2 injection on CH4 adsorption, coal porosity and permeability

ADVANCES IN GEO-ENERGY RESEARCH, Journal Year: 2024, Volume and Issue: 12(3), P. 205 - 222

Published: May 15, 2024

CO2/N2-enhanced coalbed methane recovery is an important means of increasing production, and understanding the competitive adsorption CO2, CH4 N2 in coalbeds its impact on coal properties important. A structural model for anthracite from Daning-Jixian was constructed based elemental analyses, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy carbon nuclear magnetic resonance data. The grand canonical Monte Carlo method used to research multiple gases changes porosity permeability. These results indicated that with CO2 injection, considerable desorption occurred seams, permeability decreased. During increased, increased gradually. However, rate after injection much lower than CO2. With as molar mass ratio quantity adsorbed decreased, total amount gas which coal. At 0.6, 70.95%, were high, sequestered mitigate greenhouse emissions provide economic environmental benefits. Document Type: Original article Cited as: Pan, J., Jiao, F., Wang, K., Li, Y., Song, D., Hou, Q. Molecular simulations effects adsorption, Advances Geo-Energy Research, 2024, 12(3): 205-222. https://doi.org/10.46690/ager.2024.06.05

Language: Английский

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Analysis of reservoir permeability evolution and influencing factors during CO2-Enhanced coalbed methane recovery

Energy, Journal Year: 2024, Volume and Issue: 304, P. 132045 - 132045

Published: June 12, 2024

Language: Английский

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Review and Outlook on the Utilization of Low-Concentration Coalbed Methane for Power Generation by Solid Oxide Fuel Cells

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(3), P. 1618 - 1632

Published: Jan. 9, 2024

With the growing global demand for clean energy, more and attention has been given to energy conversion efficiency of low-quality fuels. A solid oxide fuel cell (SOFC) is expected be one ideal technologies efficient utilization low-concentration coalbed methane (CBM) because it can achieve This review examines challenges SOFC technology fueled by CBM. In comparison fuels such as hydrogen natural gas, CBM usually contains a large number other gas components in addition methane, which reduces chemical reactivity leads decrease efficiency. The effects different carbon-containing on performance have investigated great deal research, results reveal that tends main source carbon deposition, whereas oxygen-containing positive effect deposition. current hydrocarbon fuels, concentration polarization also major factor contributing lack durability stability cell, with exception deposition sulfur poisoning. addition, temperature operating environments degrees influence Therefore, development materials optimization system structure CBM-fueled are still key research directions future.

Language: Английский

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Experimental Investigations on Enhanced Coal Seam Methane Extraction by Injecting Gas: A Review

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(5), P. 3517 - 3538

Published: Feb. 14, 2024

Enhanced coal seam methane extraction by injecting gas is an emerging technology to both reduce greenhouse emissions and improve recovery. In this paper, the experimental field research progress on injection for driving displacing are reviewed from perspectives of micro, meso, macro scales. The microscopic scale perspective involves intuitively analyzing interaction process relationship between strong adsorption gases (CO2, LCO2, SCCO2) relatively weak (CH4, N2) injected into samples, changes in number micropores, mesopores, macropores samples using NMR low-temperature nitrogen equipment, visualizing multiphase flow pore structures microfluidic methods. For mesoscopic scale, multiple equipment means (SEM, NMR, liquid adsorption, etc.) were used quantitatively analyze effects different fracture widths, degrees metamorphism, composition seepage adsorption–desorption rate. macroscopic physical mechanical properties rock analyzed pseudotriaxial or true triaxial during parameters axial pressure confining pressure, especially related experiments single component multicomponent gases. Moreover, future perspectives, some key, emerging, intelligent technologies enhanced will be put forward.

Language: Английский

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Gas desorption characteristics in different stages for retained water infiltration gas-bearing coal and its influence mechanism

Energy, Journal Year: 2024, Volume and Issue: 293, P. 130688 - 130688

Published: Feb. 17, 2024

Language: Английский

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Adsorption of CO2/CH4 on the aromatic rings and oxygen groups of coal based on in-situ diffuse reflectance FTIR

Gas Science and Engineering, Journal Year: 2024, Volume and Issue: 130, P. 205440 - 205440

Published: Aug. 30, 2024

Language: Английский

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