Reservoir Geological Modeling And Design Of Encryption And Adjustment Scheme In XS1 Block

XS1 blocks have been put into production since 2004.With the development time extended,the blocks are faced with many problems,such as a large decrease in production capacity,the gradual decline of pressure,and the poor utilization of reserves.In order to improve the development effect of block development,improve the stable production capacity and development level,in view of the contradictions in the block,on the basis of deepening the understanding of the reservoir and gas reservoir,the well seismic combination interpretation,the geological modeling work,the numerical simulation and the scheme design of the encrypted well network are focused on,and the rational adjustment and development techniques suitable for the characteristics of the block are optimized.The countermeasures will lay a good foundation for the further development of gas reservoirs and the compilation of the encryption and adjustment plan,and the better development of gas reservoirs.Through the well seismic combined comparison,the fine interpretation of the reservoir after drilling is made,and the parameters of the lithology,physical property and productivity of the block reservoir are integrated,the classification evaluation standard of the reservoir is perfected,the reserves and distribution of various reservoirs and the main influencing factors of the gas well productivity are made clear.In view of the characteristics of the gas reservoir with low porosity and low permeability,the dynamic and static conditions of well net gas well production are developed,and the gas reservoir engineering and numerical simulation are used to demonstrate the encryption adjustment scheme suitable for the low permeability gas reservoir in the block.Through the design of several sets of programs to develop indicators and economic benefits of the evaluation,the final selection of plan 3 as the best option.The results obtained by the above research work provide the basis for the development and adjustment of the XS1 block well network,which is of great significance for improving the development level and benefit of the gas reservoir.