细分沉积微相研究剩余油分布规律

通过细分沉积微相，揭示出不同沉积微相砂体，其岩石组成、储层物性、沉积构造及非均质特征等各方面都存在明显的不同，这是造成储层非均质性的关键因素。兴隆台油田马19井区东营组油藏是典型的河流—沼泽沉积相，其中包含着多种沉积微相，使储集层结构非常复杂，通过对沉积微相的研究，了解了储层砂体的分布状况和油气集聚特点，明确了剩余油的分布规律，从而采取有效挖潜措施，为老油田的进一步挖潜、提高最终采收率奠定了基础。

With the elaborate division to microfacieses study the regularity of residual distribution

With the elaborate division to microfacieses, It reveals that different sedimentary microfacies of sand body has obvious difference in some sectors, such as stratigraphy, reservoir physical properties, sedimentary structure and heterogeneity characteristics. Ma 19 well of Dongying formation in Xinglongtai oil field is typical fluvial to swamp facies, it contains many microfacieses, makes reservoir construction very complicated. With the study on microfacieses, it knows that distribution of reservoir sand bodies and accumulation of hydrocarbon, determines the regularity of residual distribution, thereby, adopt effective measures to potential tapped, lay the foundation for further exploitation of old filed and enhanced ultimate recovery