Results 1 to 10 of about 187 (85)

Experimental Investigation on the Impact of Coal Fines Migration on Pores and Permeability of Cataclastic Coal [PDF]

ACS Omega, 2023
Tiancheng Xie, Yingchun Wei, Ziliang Liu, Biao Li, Daiyong Cao, Anmin Wang   +5 more
doaj   +3 more sources

The migration and deposition patterns of coal fines and their initiation mechanisms during the gas–water two-phase flow stage in coalbed methane wells

International Journal of Coal Science & Technology
The 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, Jian Shen, Zhuang Ma, Wujie Pan, Qian Wang, Chao Li   +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   +3 more sources

Impact of salinity of fracturing fluid on the migration of coal fines in propped fractures and cleats

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, Shuxun SANG, Shiqi LIU, Qiang CHEN, Xiaozhi ZHOU, Meng WANG   +5 more
doaj   +1 more source

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, Yingchun WEI, Qi ZHANG, Shuangyuan ZHANG, Anmin WANG, Daiyong CAO   +5 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   +3 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

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

An Experimental Study on Coal Fines Migration during Single Phase Water Flow

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, Yanbin Wang, Jingjing Fan, Yong Li, Xiang Wu, Yun Yu   +5 more
doaj   +1 more source