Research on the level of stable production in the development of coalbed methane well
In the process of the development of coalbed methane, with the decline of the coalbed pressure, the effective pressure is increasing, so the porosity and permeability will change results from the increase of the effective pressure. For this reason, the method of calculating the change of porosity and permeability with the effective pressure is proposed. After the production is stable, how to predict the level of the stable production is urgently to be solved. For this reason, the model for calculating the level of the stable production is built up. The change of the porosity and permeability is considered in the model. The years of stable production, the coalbed pressure change, the well bore pressure change, the cumulative production and the recovery can be predicted through this model, the dependability is proved.
stress sensibility triazial stress ezperiment level of stable production
Y. D. Guo Y. J. Zhao Z. P. Li
School of Energy, China University of Geosciences, Beijing, 100083, China
国际会议
徐州
英文
439-447
2009-09-24（万方平台首次上网日期，不代表论文的发表时间）