储层非均质模型在濮城油田的应用

Application of Reservoir Heterogenety Model in Pucheng Oil Field

文中对濮城油田南区沙二上2+3储层的非均质性从微观、层内、层间、平面等四个方面作了系统研究，指出本区储层储集空间以粒间孔、粒内溶蚀孔为主。孔喉组合以中孔隙、中细喉道为主。层内非均质性较强，层内非均质性与居内垂向韵律特征及沉积微相关系密切。其中以水道微相层内非均质性最强。层内夹层多，层间渗透率非均质性较弱，层间隔层分布较为稳定，平面非均质性强度总体上介于居内、层间之间。在油田开发生产中反映以层内矛盾为主，所以研究层内非均质特征及剩余油分布并制定相应的调整挖潜措施是今后的工作重点。

In this paper, the heterogeneity of reservoirs was researched systematically from the aspectssuch as microscopic、intraforrnational、interbedded、plane etc in upper ES22 + 3 South Area of Pucheng Oil-field. thestorage space of reservoirs contains mainly inter-granular pore、intragranular dissolution pore in this block. Thecombination of pore and throat mainly was contained by medium pore and medium throat. The intra formationalheterogeneity is strong, and it was relation with the intraformational and micro faces. The most strongest one ofintraformational heterogeneity was channel micro faces. The interbedded heterogeneity is weak, and distributionof the interbedded bed was extensive. The strength of plane heterogeneity is generally between intra formationaland interbedded. It was shown that the intra formational heterogeneity was the main problem during oilfield development, thus to study intra formational heterogeneity is the importent thing for oilfield development adjustments.