Results 11 to 20 of about 20,003 (223)

Experimental study of coal fines migration characteristics in reservoirs with diverse coal structures: Influence on reservoir behavior [PDF]

Gas Science and Engineering
The challenge of coal fines production within tectonic coal reservoirs during coalbed methane (CBM) development in China presents a significant concern. In this study, coal samples with distinct coal structures from Hancheng mining area were selected for experiments on coal fines migration.
Yingchun Wei, Ziliang Liu, Xianyue Xiong, Tiancheng Xie, Biao Li, Anmin Wang, Daiyong Cao, Zhenjiang You   +7 more
openaire   +4 more sources

Experimental investigation on the impact of coal fines generation and migration on coal permeability [PDF]

Journal of Petroleum Science and Engineering, 2017
Abstract Measurements of the coal fines production and the impact of these fines on the permeability of two coals from the Bowen Basin, Australia, were performed at different flow conditions (single-phase water or gas, two-phase water and gas) and pressure conditions. The fines collected from each coal samples ranged in size from 1 μm to 14 μm.
Bai, Tianhang, Chen, Zhongwei, Aminossadati, Saiied M., Rufford, Thomas E., Li, Ling   +4 more
openaire   +4 more sources

Experiment and Model of Conductivity Loss of Fracture Due to Fine-Grained Particle Migration and Proppant Embedment

Energies, 2022
In weakly cemented reservoirs or coal-bed methane reservoirs, the conductivity of hydraulic fractures always declines after a period of production, which greatly influences gas production.
Weidong Zhang, Qingyuan Zhao, Xuhui Guan, Zizhen Wang, Zhiwen Wang   +4 more
doaj   +1 more source

Experimental Investigation of the Impact of Coal Fines Migration on Coal Core Water Flooding [PDF]

Sustainability, 2018
Coalbed Methane (CBM) has become an important gas resource in recent decades. The brittle property of coal matrix and overactive operation make the migration of coal fines inevitable. Blockage by coal fines that plugs flow paths is a non-negligible issue that results in a significant decline in gas production.
Dapeng Gao, Yuewu Liu, Tianjiao Wang, Daigang Wang   +3 more
openaire   +1 more source

Hydraulic fracturing effect of CBM vertical well and its impact on productivity: a case study of Yaojie Mining Area

Meitan kexue jishu, 2023
CBM reservoir is a typical fracture-controlled gas reservoir, and the scale of fracturing and fracture-filling effect have decisive control on gas well productivity.
Daibing MA, Lichao CHEN
doaj   +1 more source

Advances of nanotechnologies for hydraulic fracturing of coal seam gas reservoirs: potential applications and some limitations in Australia

International Journal of Coal Science & Technology, 2022
Some of the most promising potential applications of nanotechnology to hydraulic fracturing of coal seam gas (CSG) are reviewed with a focus on Australian CSG wells.
Hannah Marsden, Sudeshna Basu, Alberto Striolo, Melanie MacGregor   +3 more
doaj   +1 more source

Numerical simulation study on influence of coal fines migration on porosity and permeability in cataclastic coal [PDF]

Youqicang pingjia yu kaifa
During coalbed methane (CBM) production, coal fines within the reservoir can migrate, potentially blocking pore throats and resulting in a significant reduction in reservoir permeability. This process adversely affects the final CBM yield. To investigate
SHI Hui, XIE Tiancheng, LIU Ziliang, JIANG Zhikun, WEI Yingchun
doaj   +1 more source

Electrodialytic processes in solid matrices. New insights into batteries recycling. A review. [PDF]

, 2019
Electrodialytic Remediation has been widely applied to the recovery of different contaminants from numerous solid matrices solving emerging issues of environmental concern.
Acar YB, Foster M, Helfferich FG, Lageman R, Ottosen LM, Renaud PC, Segall BA, Shapiro AP, Stucki S (e)   +8 more
core   +1 more source

Experimental investigation on coal fines migration through proppant packs: Assessing variation of formation damage and filtration coefficients

Gas Science and Engineering, 2023
Coalbed methane reservoirs generate coal fines during production that cause irreversible damage to cleat conductivity. In severe scenarios, this can result in temporary closure of recovery operations from the gas well(s). In this work, we simulate the impact of coal fines on proppant conductivity.
Faisal Ur Rahman Awan, Mohsen Farrokhrouz, Hamed Akhondzadeh, Stefan Iglauer, Alireza Keshavarz   +4 more
openaire   +2 more sources

Investigation of the dust formation process when hoisting the uranium ores with a bucket [PDF]

, 2019
Purpose. Determining the possible level of air dustiness during the bucket hoisting of uranium ores along the shaft “Holovnyi” of the mine “Novokostiantynivska”, SE “VostGOK”. Methods.
Fedko, M, Kalinichenko, O, Kalinichenko, V, Kryvokhin, B, Pukhalskyi, V, Stupnik, M   +5 more
core   +1 more source