Study On Dynamic Evaluation Of Coalbed Methane Development For A Typical Block In Qinshui Basin

Using ADO.NET and Oracle 11 g to establish the database of CBMDPS and created relative property tables. According GUI to realizing the function of data management. The functions include adding-data, querying-data, updating-data and exporting the simulative parameters file by Excel.Based on the theory of coalbed methane dynamic estimation and chose a CBM block as study area in Panzhuang, Qinshui Basin, analysis the elements which could influence the production. This paper used independence R & D software CBMDPS to analyzing reservoir simulation of single well, verifying the efficiency and functionality, and compared the reservoir simulation function to COMET3 software simultaneously. The drainage results of single wells were analyzed. The results are as follow:Firstly, in single well processing, gas content, water content and reservoir pressure drop continuously and extend to below and around, making the funnel get into shape. Secondly, reservoir simulation could provide a reference for actual production, the simulation could reflect the production trend in the future, but it does not mean that the simulation could represent the actual production. Thirdly, in single well processing, scientific gas drainage institution should be implemented meanwhile gas drainage should persist in slowly and stable principle.Calculated the coalbed methane historical fitting by quantitative ways. Summarized existing methods about calculating fitting like set pair analysis, absolute grey relevance, nonlinearity correlation coefficient and brought up another new method of calculating fitting called area subtraction. Used.NET Framework and C# programming language, self-programming to realize the above methods to calculating the coalbed methane historical fitting and in the application process, historical fitting should be calculated by phases.