利用交会面积法预测百色盆地致密碎屑岩储层初始产量

百色盆地东部坳陷中央凹陷带那读组为陆相碎屑岩沉积地层,其储集层具有岩石结构复杂、物性条件差、低孔低渗、非均质性极强等特点,使用传统方法预测其初始产量比较困难。因此从基础资料入手,分析储层特征,并通过研究储层流体性质的响应特征,提出了运用含油指示参数OID与反映孔隙结构的参数m的交会面积方法来预测初始产量。该方法由于综合了影响该地区储层产量的孔隙度、泥质含量、厚度、含油饱和度、渗透率等关键参数,预测精度和直观性有很大的提高,较好实现对那读组致密储层产量的快速预测,实际应用效果十分显著。

Use of Cross-area model to predict the initial production of compacted clastic reservoir in Baise Basin

Nadu formation of centre depression in the east of Baise Basin is continental clastic deposit formation.The characteristics of reservoir are complex rock structure with poor physical property,low porosity and permeability,and very strong anisotropy.Therefore,it is difficult to predict the initial production using traditional model.Based on logging data and reservoir property,the Cross-area model using oil instruction OID and pore structure parameter m is used to predict the initial production.Combining factors influencing the porosity,shale content,oil saturation,thickness and permeability,the precision and efficiency are greatly increased through using the method of Cross-area in compacted clastic reservoir in Nadu formation.