Study On Multi-well Information Method Of Reservoir Parameters In Chun 6

The heterogeneity of lithology and physical property of Chun 6 in ChunHua oil field is high,the plane distribution of reservoir parameters and the distribution law of oil reservoir are complex.Because of the age,the well logging time span,the error between datas and backward well logging instrument and other reasons,Conventional single well interpretation has been unable to meet the production needs.The main research object of multi-well evaluation is reservoir and oil pool,compared with single well logging analysis technology,it has multi information and can comprehensively characterize reservoir characteristics and spatial distribution.To solve this problem,based on the conventional well logging interpretation and multi-well evaluation theory,we evaluate the reservoir parameters’ attribute from the regional integration,effectively reflect the heterogeneity of reservoir and the distribution of oil and gas,and provide the basis for the exploration and development of oil field.This is the study work below:(1)Comprehensive use of the geological,well logging,core analysis and hydrocarbon test data,and based on the main geological features in the block,comprehensively analysis on the characteristics of the reservoir.Through the above analysis,we further expand the study of the "four" relationship so as to lay the foundation for the calculation of reservoir parameters and the second interpretation.(2)According to the actual situation of the research area,this text locates the core data at first and then standardizes the acoustic logging data.By applying the comparing the two different methods of column diagram and trend-surface analysis,through the analysis of the comparison,the trend-surface method is of high precision and the effect is better.(3)According to the differences of reservoir lithofacies and logging response in vertical direction,based on “core calibration logging”,the quantitative parameters of porosity and permeability are evaluated in segments.(4)Due to the limitations of Kriging algorithm in application of the complex geological structure,comprehensively considering the effects of boundary faults,we interpolate to the parameters of different faults divided in to several segments by using kriging method and inverse distance power method,and compared with the plane distribution without considering the influence of the fault effect.In this paper,we establish the porosity interpretation model of core and acoustic logging in the vertical direction of the study area.The results of the second interpretation is significantly improved compared with the original interpretation.By using Kriging interpolation and inverse distance weighted method,adding the fault effect,prediction of reservoir parameters in Chun 6.Draw out plane distribution of reservoir physical properties and saturation and further deepen the geological understanding of the region.