Study On The Effect Of Water Injection In Horizontal Well To Improve The Development Of Low Permeability Reservoir

Because of the development of oil reservoirs,there is a difficult problem in the edge of oil reservoir,which leads to the poor development of reservoir edge.As the well pattern is perfect,it is more difficult to encrypt the well pattern.Considering that the horizontal well injection and production system can effectively reduce the injection pressure,increase the well spacing and increase the injection volume.Therefore,the advantages of the horizontal well are used to transform the well area to achieve the purpose of improving the reservoir development effect.First of all,this study will make full use of the existing geological data to carry out more fine geological modeling;analysis of the distribution of the sand layer,the statistical work area reservoir basic address data,calculate the plant area reserves;find the main area of the reservoir,For a targeted dynamic analysis to lay a good foundation.Secondly,in the dynamic analysis,in addition to the conventional dynamic analysis,but also to filter out the injection and hardening wells;to focus on drilling and mining wells as the focus of the study object,analysis of the reasons for injection and hardening;given the current well pattern under the rational development of technical policy,Forecast the main development parameters.Thirdly,combined with the previous research results,summed up the basic principle of water application,combined with the distribution of sand bodies to further improve the injection wells.Combined with the actual data of the work area,the theoretical formula is calculated to verify the formula reliability.Finally,based on the analysis of reservoir description and reservoir development in the study area,the numerical simulation of the development of the production wells and the optimization of the reservoir engineering are carried out according to the fluid properties.The adjustment scheme verifies the reliability of the reservoir by describing the historical fit of the production dynamics.Contrast the basic program,and ultimately to achieve a reasonable and efficient development of the purpose of oil fields.