A Four-Component, Two-Phase Flow Model for CO2 Storage and Enhanced Coalbed Methane Recovery

2006 ◽  
Author(s):  
Carolyn Jennifer Seto ◽  
Kristian Jessen ◽  
Franklin M. Orr
Keyword(s):  
Coalbed Methane ◽  
Flow Model ◽  
Two Phase Flow ◽  
Co2 Storage ◽  
Phase Flow ◽  
Two Phase ◽  
Methane Recovery ◽  
Enhanced Coalbed Methane Recovery ◽  
Enhanced Coalbed Methane

scholarly journals Analytical solutions of fractal-hydro-thermal model for two-phase flow in thermal stimulation enhanced coalbed methane recovery

2019 ◽  
Vol 23 (3 Part A) ◽  
pp. 1345-1353 ◽  
Author(s):  
Xiaoji Shang ◽  
Jianguo Wang ◽  
Zhizhen Zhang
Keyword(s):  
Heat Conduction ◽  
Coalbed Methane ◽  
Thermal Model ◽  
Two Phase Flow ◽  
Thermal Stimulation ◽  
Phase Flow ◽  
Two Phase ◽  
Methane Recovery ◽  
Enhanced Coalbed Methane Recovery ◽  
Enhanced Coalbed Methane

Thermal stimulation is a useful supplementary mining technique for the enhancement of coalbed methane recovery. This technique couples the temperature change with gas-water two-phase flow in the mining process. Many integer dimension hydro-thermal models have been proposed but cannot well describe this coupling because two-phase flow and heat conduction are usually non-linear, tortuous and fractal. In this study, a fractal-hydro-thermal coupling model is proposed to describe the coupling between heat conduction and two-phase flow behaviors in terms of fractional time and space derivatives. This model is analytically solved through the fractal travelling-wave method for pore pressure and production rate of gas and water. The analytical solutions are compared with the in-situ coalbed methane production rate. Results show that our proposed fractal-hydro-thermal model can describe both heat and mass transfers in thermal stimulation enhanced coalbed methane recovery.

Sign in / Sign up

Export Citation Format

Share Document