摘要
琼东南盆地陵水凹陷北坡靠近生烃凹陷,具有良好的油气成藏系统。通过以沉积学、构造地质学为理论指导,利用分析化验资料、钻测井资料和地震资料,从岩石学特征、粒度、岩相类型和地震反射特征等方面进行综合分析研究,明确了研究区梅山组二段为低密度浊流海底扇沉积;并探讨了其沉积模式和演化规律。同时还发现研究区低密度浊流海底扇储层表现为中孔低渗特征,产能不乐观,其物性受到沉积因素和成岩作用的综合控制:岩石颗粒粒度大小、泥质含量和后期的溶蚀作用强弱是物性好坏的关键因素。
The Lingshui Sag,Qiongdongnan Basin was near hydrocarbon generation depression,which indicated good reservoir forming system. Based on the analysis of analysis assay,logging and seismic data,combining with application of sedimentology and structural geology theory,submarine fan was identified in the 2nd Member of Meishan Formation through the comprehensive studies of lithology feature,grain size,lithofacies and seismic reflection.Sedimentary patterns and evolution was discussed further more. The productivity of low-density turbidity submarine fan reservoirs is not very optimistic because of medium porosity and low permeability. Its physical properties was controlled by sedimentary factors and diagenesis. Particle size,clay content and later dissolution played a significant role in the physical properties.
出处
《科学技术与工程》
北大核心
2015年第33期48-53,78,共7页
Science Technology and Engineering
关键词
低密度浊流
陵水凹陷
梅二段
物性特征
琼东南盆地
low-density turbidity Lingshui Sag the 2nd member of Meishan Formation physics properties characteristics Qiongdongnan Basin
