Two phase relative permeabilities for gas and water in selected European coals

Sevket Durucan*, Mustafa Ahsan, Ji Quan Shi, Amer Syed, Anna Korre

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Gas-water relative permeability behaviour of seven European coals of different ranks was characterised in order to enhance the scientific understanding of the fundamental processes of two-phase flow taking place within the macrostructure of coal. Laboratory experiments were carried out on cylindrical coal samples using the unsteady state method to measure gas-water relative permeabilities due to its operational simplicity. The impact of factors such as wettability and overburden pressure on coal relative permeabilities were assessed. Considerable variation in the shapes of the relative permeability curves for different rank coals was observed, which was attributed to the heterogeneous nature of coal.

Original languageEnglish
Pages (from-to)226-236
Number of pages11
Early online date1 Jun 2014
Publication statusPublished - 15 Oct 2014

Keywords / Materials (for Non-textual outputs)

  • Coalbed methane
  • Enhanced coalbed methane
  • Laboratory experiments
  • Relative permeability


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