【摘要】 百色盆地北部陡坡带那读组油气成藏受储层发育控制,而储层的发育主要受沉积相的影响,因而开展沉积相的研究工作能有效地进行储层预测和勘探目标优选。结合露头和岩心资料,通过对地震相划分及沉积相的研究,认为百色盆地北部陡坡带东段主要包括冲积扇相、三角洲相和湖相3种类型,各沉积相又可细分为不同的亚相;在对不同沉积相平面展布特征的分析基础上,指出了水道复合体和盆底扇为有利储层发育相带。更多还原

【Abstract】 In the Steep Slope of the northern Baise Basin, reservoir forming of Nadu Formation is affected by reservoir development, which is mainly affected by sedimentary facies. So, to study sedimentary facies can effectively predict reservoir and optimize exploration target. In this paper, seismic faices are classified and sedimentary faices are studied based on some outcrop and core data. It is considered that the eastern Steep Slope is mainly composed of three sedimentary faices, including alluvial fan, deltaic and lacustrine facies; and every facies can be divided into many subfacies. In addition, it is also point out that both channel complex and basin-floor fan are favorable facies belt for reservoir development based on analysis of planar distribution of different facies.更多还原