【摘要】 随着各油区勘探程度的不断提高,隐蔽性油藏已成为勘探的热点和重点,而微构造圈闭油藏是介于一般构造油藏和隐蔽性油藏之间的一种油藏模式。以孤东油田周边勘探为例,总结出微构造圈闭成藏模式主要有三种,即背斜微构造、断鼻微构造、断块微构造,此外,还有复合型的微构造圈闭油藏,如岩性+微背斜构造圈闭油藏等;并对其勘探方法进行了探讨,认为由于微构造圈闭油藏所处的特有构造位置及其“微型”特点,其勘探方法将有别于一般构造圈闭的勘探方法,从资料要求、三维地震资料的精细解释、含油性分析及圈闭评价四方面介绍了勘探经验。更多还原

【Abstract】 Subtle reservoirs have become important exploration targets along with the exploration degrees go higher in each oil region. Micro - structural trap reservoir is a special reservoir type that stands between ordinary reservoirs and subtle reservoirs. There are three reservoir - forming modes of micro - structural traps including anticline micro - structures, fault - nose micro - structures and fault block micro - structures as well as compound micro -structural trap reservoirs such as lithologic - micro - anticline structural trap reservoirs. This paper introduces the exploration experiences in respects of data requirements, fine interpretation of 3D data, oil - bearing property analysis and trap evaluation.更多还原