Production Dynamic Analysis And Dynamic Reserve Evaluation Of The Typical Gas Reservoir In The Southeast Of Sulige

The gas reservoir in the southeast of Sulige is a tight gas reservoir,the reservoir physical property is poor,and the heterogeneity is strong.With further development,it is urgent to study the production status and potential of the gas reservoir.Based on horizontal well production dynamic analysis of the typical gas reservoir in the southeast of sulige,the productivity model considering the non heterogeneity along the horizontal well has established,and according to the actual application,the model was optimized.On the basis of this,the research on the evaluation method of the dynamic reserves of the typical horizontal well in the southeast of sulige is carried out.Firstly,by analyzing the production characteristics of typical horizontal wells in the southeast of sulige,the horizontal wells are classified into 3 categories,class I wells accounted for 29%;class II wells accounted for 37%;class III wells accounted for 34%.according to the classification standard.On this basis,combined with the actual production data,the horizontal well production decline has analysed,as well as the influence factors of horizontal well productivity.Secondly,for the characteristics of the strong heterogeneity along the horizontal well in the the southeast of sulige,the four horizontal well productivity model considering the non heterogeneity along the horizontal well has established,and its application is analysed.The model which is suitable for productivity calculation of horizontal well in the southeast of sulige was optimized.Finally,the dynamic reserve evaluation method of typical horizontal well in the southeast of sulige has been researched.The dynamic reserves of horizontal well in the southeast of sulige were calculated using different evaluation method,and analysing the adaptability of these methods.For the horizontal gas well in the southeast of sulige is in the early production,the production time is short,the data is less,based on the flowing material balance principle,combined with productivity model,a new method of dynamic reserves evaluation for horizontal well is established,and carries on the analysis of the application.The results of this study have played a certain role in the development of typical gas reservoirs in the southeast of Sulige with horizontal wells.