井间储层参数分形预测及其应用

Application of Fractal Geometry to Predication of Reservoir Parameters between Two Wells

分形几何理论最适合于描述非均质性储层这类极不规则的自然现象．将分形几何理论应用于井间储层参数预测，其预测步骤包括：应用变尺度分析法求取储层参数的间断指数；利用连续随机附加法建立分形模型；预测井间储层参数。对ＬＳ地区井间储层参数的预测结果表明，该方法仅用两口井或少量井就能建立既反映储层宏观变化趋势又反映储层内部非均质变化的储层参数预测模型。

Fractal geometry is suitable to describe irregular phenomena such as heterogeneous reservoirs.In this paper,fractal geometry is applied to predict the reservoir parameters between two wells.In prediction, the intermittency exponents for vertical reservoir parameters are firstly calculated by the rescaled range analysis and then fractal models are established by successive random addition,and finally the parameters between two wells are predicted. Results processed for real data from LS oilfield show that the models for reservoir parameters can be set up to describe not only the macroscopic trend but also microscopic heterogeneity of reservoirs.