Simulation of key parameters in CO2 injection for enhanced coalbed methane recovery in a deep well group

2018 ◽  
Vol 40 (18) ◽  
pp. 2219-2226 ◽  
Author(s):  
Zhang Bing ◽  
Jianping Ye ◽  
Yue Li ◽  
Xueting Han ◽  
Jian Shen ◽  
...  
Keyword(s):  
Coalbed Methane ◽  
Co2 Injection ◽  
Methane Recovery ◽  
Deep Well ◽  
Enhanced Coalbed Methane Recovery ◽  
Enhanced Coalbed Methane

scholarly journals Influence and Sensitivity Study of Matrix Shrinkage and Swelling on Enhanced Coalbed Methane Production and CO2 Sequestration with Mixed Gas Injection

2011 ◽  
Vol 29 (6) ◽  
pp. 759-775 ◽  
Author(s):  
Fengde Zhou ◽  
Guangqing Yao ◽  
Zhonghua Tang ◽  
Oyinkepreye D. Orodu
Keyword(s):  
Methane Production ◽  
Coalbed Methane ◽  
Net Present Value ◽  
Sensitivity Study ◽  
Mixed Gas ◽  
Methane Recovery ◽  
Matrix Shrinkage ◽  
Enhanced Coalbed Methane Recovery ◽  
Shrinkage And Swelling ◽  
Enhanced Coalbed Methane

Matrix compressibility, shrinkage and swelling can cause profound changes in porosity and permeability of coalbed during gas sorption and desorption. These factors affect the distribution of pressure, methane production and CO2 sequestration. This paper compares the effects of cleat compression and matrix shrinkage and swelling models with the injection of different compositional gas mixtures (CO2 and N2). It shows that well performance, pressure distribution and properties of the seam are strongly affected by matrix shrinkage and swelling. Matrix shrinkage and swelling also affects net present value of the enhanced coalbed methane recovery scheme. In order to select the best enhanced coalbed methane recovery schemes, economic evaluation and sensitivity studies are necessary.

Sign in / Sign up

Export Citation Format

Share Document