Production Variation Of Fractured Horizontal Wells In Shale Gas Reservoirs

In recent years,with the development of the society,the studying area of oil and gas varies from conventional oil and gas to unconventional oil and gas.Especially,shale gas.The exploration and development of shale gas becomes more and more important than before.At home,there are some excellent shale gas areas for eventual development,such as Fu Ling,Wei Yuan-Chang Ning,Fu shun-Yongchuan,Zhao Tong and so on.Therefore,the Decline method,analysis of percolation mechanism,the calculation of recoverable reserves about shale gas are very important.First of all,the author of this article analyze the geological characters of this shale gas area that is called Wei Yuan.And then,tha author of dissertation does his research on the characters of adsorption,temperature and pressure.Based on this foundation,he does his research on the seepage flow model,such as AMA model and linear dual porosity model.In terms of the characters of the change about the production rate,I use the Duong method,SEDM method and SEDM&Duong combination method to predict the EUR of shale gas wells.Between the application of two kinds of methods,the result of conventional reservoir dynamic method is affected by the change of production system.However,the change of a production system does little to the result of seepage model analysis method,but the parameters that are related to reservoir dynamic analysis plays an important part in the result about seepage model analysis method.