牛东区块卡拉岗组火山岩油藏岩性岩相特征

Characteristics of Lithology and Lithofacies of Kalagang Formation Volcanic Reservoir in Block Niudong

根据岩石化学成分分析、薄片鉴定、岩心观察以及测井标定与识别,将三塘湖盆地牛东区块卡拉岗组火山岩分为熔岩和火山碎屑岩两大类,在此基础上,初步尝试地质、测井和地震结合研究火山岩岩相,将火山岩岩相划分为爆发相、喷溢相和火山沉积相三大类。探讨火山岩性岩相对储集性能及含油性的控制作用。

By use of petrochemistry component analysis, slice identification, core observation and logging marking and identification, Kalagang formation volcanic in block Niudong in Santanghu basin is divided into two categories, lava and pyroclastic rock. Based on it, researchers preliminarily try to combine geology and logging and seismic to study volcanic lithofacies, and volcanic lithofacies are classified as explosion facies and eruption facies and volcanic sedimentary facies. How volcanic lithology and lithofacies control reservoir capability and oil capability is discussed.