Two phase relative permeability of gas and water in coal for enhanced coalbed methane recovery and CO2 storage

被引：32

作者：

Durucan, Sevket ^{[1
]}

Ahsan, Mustafa ^{[2
]}

Syed, Amer ^{[1
]}

Shi, Ji-Quan ^{[1
]}

Korre, Anna ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Royal Sch Mines, Dept Earth Sci & Engn, London SW7 2BP, England

[2] Sasol Petr Int Ltd, London WIU IQU, England

来源：

GHGT-11 | 2013年 / 37卷

关键词：

Relative permeability; coalbed methane; enhanced coalbed methane; laboratory experiments;

D O I：

10.1016/j.egypro.2013.06.606

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

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, absolute permeability and overburden pressure on coal relative permeability 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. (C) 2013 The Authors. Published by Elsevier Ltd. Open access under CC BY-NC-ND license.

引用

页码：6730 / 6737

页数：8

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