Study On The South East Gaotaizi Oil Zones Remaining Oil Distribution And Tapping Potential Method

At present, the South East Gaotaizi oil zones of Sazhong development area is third water flooding fine control of tap water demonstration area, the implementation of precise control of tap water in small layer development as the core, and the Nii capacity building in 2014, the deployment of three oil infilling adjustment wells. South East Gaotaizi oil zones area at present, comprehensive water cut has reached more than 95%, have an in-depth understanding of the geological characteristics of Gaotaizi oil zones, in order to achieve fine potential tapping, tapping the potential of targeted reasonable and effective way. Geological modeling of the block previously carried out is based on the general description of reservoir sedimentary facies, the knowledge is difficult to meet the development of the block fine adjustment needs, it is necessary to sedimentary microfacies and combination of well and seismic structure based on the research results of well seismic combination, to carry out the fine geological modeling analysis, effective support system development potential and development effect tapping mode, scientific design, to improve the development effect of the block. At the same time, through this project implementation, the establishment of the corresponding methods, to further improve the ability and level of the fine reservoir description.According to the project requirements and the difficulty of well seismic combination, around the center, using GeoFacies and Petrel software as working platform, using the data of well logging, seismic and geological data, optimization of seismic inversion method to carry out the fine description of reservoir, using the method of well seismic combination, to build the structure model, the sedimentary microfacies as the constraint condition, geostatistics is applied to establish reservoir parameter model, to reveal the structure and reservoir spatial distribution characteristics, to establish a set of well seismic combination of fine reservoir description and 3D geological modeling method. On this basis, the study area was simulated, based on the history match, according to the remaining oil distribution law, conducts the research to the block development potential, and put forward the specific adjustment programs; the special and single well adjusted scheme proposed prediction and optimization.