Results 1 to 10 of about 206 (111)
Experimental Investigation on the Impact of Coal Fines Migration on Pores and Permeability of Cataclastic Coal [PDF]
ACS Omega, 2023 During the production process of coalbed methane, the generation and migration of coal fines can obstruct fractures in coal reservoirs and reduce their permeability. In order to investigate the effects of coal fines migration on the porosity and permeability of coal reservoirs, we conducted core water flooding experiments, low-field nuclear magnetic ...
Tiancheng Xie +5 more
doaj +4 more sources
An Experimental Study on Coal Fines Migration during Single Phase Water Flow [PDF]
Geofluids, 2020 Coal fines migration and intrusion in coal fractures affect coalbed methane (CBM) wells performance by reducing reservoir permeability and production continuity. Physical simulations are conducted to investigate the permeability variation under different
Wenlong Han +5 more
doaj +2 more sources
Effect of hydrochemical properties on the migration of coal fines in propped fractures
Meitan xuebao, 2023 The problem of coal fines restricts the efficient development of coalbed methane in China. The coal sample of No. 3 coal seam in the Shanxi Formation in the Hancheng mining area was selected for carrying out a physical simulation experiment on the effect
Ziliang LIU +5 more
doaj +2 more sources
Meitan xuebao, 2023 During the hydraulic fracturing of coalbed methane (CBM) well, the deposition of coal fines in propped fractures and the migration of coal fines in cleats will damage the permeabilities of propped fractures and cleats, consequently affecting the ...
Fansheng HUANG +5 more
doaj +2 more sources
Geofluids, 2019 Coal fines migration exerts negative impacts on early water drainage of undersaturated coal seam gas (CSG) reservoirs. The complicated migration process results in ineffective and inaccurate forecast of coal fines production.
Xiaolong Peng +6 more
doaj +3 more sources
Visual physical simulation experiment of coal fines migration and blockage removal in fractures
Meitan xuebaoThe deposition of coal fines in fractures can reduce the fracture conductivity and restrict the efficient and stable development of coalbed methane wells.
Yingchun WEI +7 more
doaj +2 more sources
International Journal of Coal Science & TechnologyThe deposition of coal fines in fractures reduces fracture conductivity and hampers efficient coalbed methane production. The results of the multiphase flow visualization experiment indicate that, at low flow rates, fines primarily deposit at the bottom ...
Wei Li +5 more
doaj +2 more sources
Meikuang AnquanIn the drainage process of coalbed methane well, the interruption of drainage will induce a large amount of coal fines to stay in propped fractures, causing damage to the permeability of propped fractures. Based on the solid-liquid two-phase flow and gas-
Chonghao MAO +5 more
doaj +2 more sources
Analysis of characteristics of coal fine production and its influence factors in Baode block [PDF]
Youqicang pingjia yu kaifa, 2023 The issue of coal fine production is increasingly prominent in the development of coal-bed methane. Implementing appropriate measures to control the migration and production of coal fines is crucial for achieving stable and high production of coal-bed ...
MENG Wenhui, ZHANG Wen, WANG Boyang, HAO Shuai, WANG Zebin, PAN Wujie
doaj +1 more source
Coal fines migration: A holistic review of influencing factors
Advances in Colloid and Interface Science, 2022 Coal fines can substantially influence coal seam gas reservoir permeability, thus impeding the flow of gas in coal microstructure. The coal fines generation and migration are influenced by several factors, wherein coal fines are generally hydrophobic and aggregate in natural coal seam gas (CSG) under prevailing conditions of pH, salinity, temperature ...
Awan, Faisal Ur Rahman +3 more
openaire +3 more sources