论文部分内容阅读
为了定量表征储层非均质性与剩余油分布之间的关系,将反映储层特性的沉积微相、微构造、有效厚度、孔隙度、渗透率以及渗透率变异系数等参数,通过归一化处理和加权平均等方法转化为非均质综合指数。在秘鲁Dorissa油田应用该指数,证实后期井的生产特征与非均质综合指数分布存在较好的对应关系,储层非均质综合指数介于0·45~0·65之间的区域为剩余油主要分布区,该区油井的生产效果理想。因此,可以应用非均质综合指数快速、准确地预测剩余油分布。
In order to quantitatively characterize the relationship between reservoir heterogeneity and residual oil distribution, parameters such as sedimentary microfacies, micro-structure, effective thickness, porosity, permeability and permeability coefficient of variation, which reflect reservoir characteristics, Methods of conversion and weighted averaging were transformed into heterogeneity composite indices. The application of this index to the Dorissa field in Peru confirms that there is a good correspondence between the production characteristics and the heterogeneity of the composite exponential distribution in late-stage wells. The area with the reservoir heterogeneity composite index between 0 · 45 and 0 · 65 is surplus The main oil distribution area, the production of oil wells in the area is ideal. Therefore, the heterogeneous composite index can be used to quickly and accurately predict the remaining oil distribution.