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6215310 
Book/Book Chapter 
- A numerical simulation study of the Allison Unit CO2-ECBM pilot: The impact of matrix shrinkage and swelling on ECBM production and CO2 injectivity 
Durucan, S; Shi, JQ 
2005 
Elsevier Science Ltd 
Oxford 
Greenhouse Gas Control Technologies 7 
431-439 
Publisher Summary This chapter presents the permeability model developed together with some of the main results of the simulation study, focusing on the impact of matrix shrinkage and swelling on methane production and CO2 injectivity. This paper presents the results of a reservoir-simulation study, focusing on the impact of matrix shrinkage and swelling on ECBM production and CO2 injectivity. Using the field gas production and CO2-injection rates as input to the Imperial College in-house ECBM/CO2 storage simulator, METSIM2, with its newly implemented dynamic permeability model simulator, the injecting bottomhole pressures, produced-gas composition at the two wells experiencing noticeable CO2 breakthrough, and the producing bottomhole pressures were satisfactorily history matched. 
Wilson, M.