摘要
海中凹陷3号断裂带南缘储层是北部湾盆地重要的勘探区域,从储层微观角度出发,分析了该区块储层的岩石学特征、孔隙结构、物性特征及其控制因素。结果表明:该区储层岩性以石英砂岩和岩屑石英砂岩为主,储层空间以原生粒间孔为主,次生孔隙主要是颗粒溶蚀及碳酸盐溶解产生的孔隙,属于低孔特低渗储层。影响储层物性的主要因素为沉积作用和成岩作用中的压实作用,且胶结作用也与物性具有一定的负相关性。
Reservoir in the southern margin of No.3 fault zone in Haizhong sag is an important exploration area in Beibuwan basin.From the microscopic perspective of reservoir,the petrological characteristics,pore structure,physical properties and controlling factors of reservoir in this area are analyzed experimentally.Reservoir lithology in this area is mainly quartz sandstone and lithic quartz sandstone;reservoir space is mainly primary intergranular pore;secondary pore is mainly the pore produced by granular dissolution and carbonate dissolution,which belongs to low porosity and ultra-low permeability reservoir.The main factors affecting reservoir physical properties are sedimentation and compaction of diagenesis,and cementation is negatively correlated with physical properties.
作者
刘冲
LIU Chong(CNOOC Central Laboratory, CNOOC Energy-tech-drilling & Production Co., Zhanjiang 524057, China)
出处
《广东石油化工学院学报》
2020年第3期34-37,共4页
Journal of Guangdong University of Petrochemical Technology
关键词
储层物性
孔隙结构
岩石学
沉积作用
成岩作用
reservoir property
pore structure
petrology
sedimentation
diagenesis
