Reservoir Modeling And Heterogeneity Evaluation Of Low Permeability Of Upper 3rd Member Of Shahe-jie Formation In Liu416 Block

The quality of the reservoir not only reflects the situation of oil and gas storage, production advantages and disadvantages of the reservoir, the deliverability of production wells and the actual effects of development, but also is an important basis for deciding development strategies and technology policies.The key of modern reservoir description is comprehensive grasping the geological information of the research area and fine characterization of the geological reservoir properties.Liuxi oilfield is one of the eastern old fields.The 416 block is little of the total field area, but there are complex structures, multi-fault, uneven thickness of sand, poor properties, fast changes in plain, fluid with the "three high" characteristics,all what demonstrate it representativeness. It have a good field guide to detailed reservoir description and in-depth evaluate for this area .On the basis of the existed research result, through the integrated application of the seismic,logging, drilling, geology analysis and test matirias, this paper re-implements the structure combining development dynamic analysis, establishs reservoir framework model. Starting from sedimentary facies and fluid phase study, using facies controlled modeling technique, analyzing variogram, forecasting Inter-well parameters, establishes reservoir properties parameters 3D numerical model, describes the space changes rule of reservoir physical properties. Numerical simulation tests the geological model with production dynamic. The analys of fitting results demonstrate that production status affectes by reservoir heterogeneity.The precise characterization of reservoir heterogeneity is the core of the mid -and late development of reservoir geological modeling, from which correct understanding and describing distribution of remaining oil. According to the research ideas and combi(?)g the t heoretical approaches about heterogeneity at home and abroad, the thesis quantitative researchs and qualitative descripts on reservoir heterogeneity from multiple parameters of inlayer, plain and interlayer. Considering the particularity of the liquid in this area, it researches liquid heterogeneity obout main reservoir.Integrating the evaluation parameters, combining the geological characteristi and information situation of block 416, this paper selects relative optimal evaluation parameters, calculates heterogeneity comprehensive evaluation of parameters with entropy weight, establishes 3D model, classifies the reservoir, comprehensive evaluates reservoir from vertical and plain with geological model and production dynamic. From the evaluation results as well as the inject water response situation, we can sum up that the oil use of main group III is obviously better than II, and well pattern control extent and injection-production methods in some layers can be improved. Therefore put forward the adjustment of the corresponding proposals to enhance the development effectiveness of the study area.