An NMR-assisted laboratory investigation of coal fines migration in fracture proppants during single-phase water production

[Display omitted] •NMR scanning was used to study coal fines retention in a proppants pack.•Injection of 500 ppm coal fines suspension yielded 41% Permeability decrease.•Retained fines concentration decreased from 8.5% at the inlet to 2.8% at the outlet.•Fines retention led to increased number of me...

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Bibliographic Details
Published in:Fuel (Guildford) 2023-07, Vol.343, p.127926, Article 127926
Main Authors: Guo, Zhenghuai, Kang, Nong, Le-Hussain, Furqan
Format: Article
Language:English
Subjects:
Coal seam gas
Fines migration
NMR
Pore structure
Water production
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Summary:[Display omitted] •NMR scanning was used to study coal fines retention in a proppants pack.•Injection of 500 ppm coal fines suspension yielded 41% Permeability decrease.•Retained fines concentration decreased from 8.5% at the inlet to 2.8% at the outlet.•Fines retention led to increased number of medium-size pores (0.9 um  60 um) decreases while that of the medium-size pores (0.9 um
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2023.127926