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The CO2 storage in coal seams at the influence of coal fines migration
2023Abstract: the pressure of the coal seam decays to a certain value due to the production of CH4, the production wells are switched to CO2 injection wells. The injection of CO2 can improve the CH4 recovery and realize the CO2 geological storage.The reverse migration of coal fines produced in the CH4 development stage can be caused by CO2 injection, which
Qian Wang +3 more
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The APPEA Journal, 2023
Fines migration in coalbed methane (CBM) fields comprises a serious environmental and gas-production challenge. The literature widely reports two kinds of fines: potential coal fines, which are a part of the coal body and can be detached by breakage under a significant drag force exerted from the inflowing water, and detrital coal fines, which are ...
Abolfazl Hashemi +4 more
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Fines migration in coalbed methane (CBM) fields comprises a serious environmental and gas-production challenge. The literature widely reports two kinds of fines: potential coal fines, which are a part of the coal body and can be detached by breakage under a significant drag force exerted from the inflowing water, and detrital coal fines, which are ...
Abolfazl Hashemi +4 more
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Modeling of Coal Fine Migration During CBM Production in High-Rank Coal
Transport in Porous Media, 2017During CBM (coalbed methane) production, the interaction of coal fracture surface with water flow commonly generates and starts coal fine flow. Part of flowing coal fines deposit in coal fracture system due to water production reduction and methane production increase.
Su-Yang Zhu +7 more
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Enrichment and migration regularity of fine coal particles in enhanced gravity concentrator
International Journal of Mineral Processing, 2017Abstract Enrichment and migration regularity of coal particles in compound force field provided by Falcon concentrator were studied. Influence of centrifugal force and fluidization water pressure on the distribution rates and ash contents of materials that enriched in overflow, top separation area and bottom separation area were tested respectively ...
Xiang-nan Zhu +3 more
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Advanced Powder Technology, 2020
Abstract The vibrated dense medium fluidized bed is an efficient waterless dry coal separation technology. In order to reduce the interference of the macroscopic migration of the entire bed with the coal settlement process, the material composition and diffusion behavior of the binary medium are studied.
Enhui Zhou +6 more
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Abstract The vibrated dense medium fluidized bed is an efficient waterless dry coal separation technology. In order to reduce the interference of the macroscopic migration of the entire bed with the coal settlement process, the material composition and diffusion behavior of the binary medium are studied.
Enhui Zhou +6 more
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Fuel, 2021
Abstract Coal gasification fine slag is a kind of industrial waste produced from coal gasification process, and high-moisture coal gasification fine slag filter cake has brought challenges to environment and coal energy suatainable development.
Fanhui Guo +8 more
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Abstract Coal gasification fine slag is a kind of industrial waste produced from coal gasification process, and high-moisture coal gasification fine slag filter cake has brought challenges to environment and coal energy suatainable development.
Fanhui Guo +8 more
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The APPEA Journal, 2023
Presented on Wednesday 17 May: Session 22 Fines migration in coalbed methane (CBM) fields comprises a serious environmental and gas-production challenge. The literature widely reports two kinds of fines: potential coal fines, which are a part of the coal body and can be detached by breakage under a significant drag force exerted from ...
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Presented on Wednesday 17 May: Session 22 Fines migration in coalbed methane (CBM) fields comprises a serious environmental and gas-production challenge. The literature widely reports two kinds of fines: potential coal fines, which are a part of the coal body and can be detached by breakage under a significant drag force exerted from ...
openaire +1 more source
Fuel, 2017
Abstract Long-term pore pressure depletion significantly alters reservoir stresses, which are known to have a substantial impact on permeability in fractured reservoirs. Increased effective stresses resulting from depletion often induce a decrease in permeability.
Igor Shovkun, D. Nicolas Espinoza
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Abstract Long-term pore pressure depletion significantly alters reservoir stresses, which are known to have a substantial impact on permeability in fractured reservoirs. Increased effective stresses resulting from depletion often induce a decrease in permeability.
Igor Shovkun, D. Nicolas Espinoza
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Physics of Fluids
The migration, deposition, and retention of coal fines carried by drainage fluids in gas production wells of coalbed methane (CBM) wells severely restrict CBM production. This study establishes a numerical model to investigate the coupled gas–liquid–coal fines seepage law in the horizontal wellbore annulus during gas production stage using a ...
Xitu Zhang +4 more
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The migration, deposition, and retention of coal fines carried by drainage fluids in gas production wells of coalbed methane (CBM) wells severely restrict CBM production. This study establishes a numerical model to investigate the coupled gas–liquid–coal fines seepage law in the horizontal wellbore annulus during gas production stage using a ...
Xitu Zhang +4 more
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Experimental Investigation on Coal Fines Migration: Proppant Conductivity Studies
SSRN Electronic Journal, 2022Faisal Awan +4 more
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