白家海凸起—阜北斜坡八道湾组储层特征研究

利用岩石薄片、铸体薄片鉴定、X–衍射、扫描电镜和压汞等资料，对白家海凸起—阜北斜坡侏罗系八道湾组的储层特征进行了研究，分析了储层的成岩作用类型、成岩演化序列、成岩作用对孔隙结构的影响及孔隙演化史。研究结果表明：八道湾组储层以岩屑砂岩为主储集空间以粒内溶孔和粒间溶孔为主，孔隙度经历了多期的演化过程，由原始的高孔隙度演化为现今低孔隙度。

Study on Reservoir Characteristics in Badaowan Formation，BaijiahaiUplift—Fubei Slope

By observing thin-sections and casting thin-sections，and analysing materials X-ray diffraction，scanning electronmicroscope（SEM）and mercury injection and so on，we carry out a comprehensive research on the features of Jurassic petrologyand pore structure in Baijiahai Uplift—Fubei Slope. Types of diagenesis and diagenetic evolution sequences，the impact ofdiagenesis on pore structure and pore evolution are also studied for this research. Crossplots of electric well logs and acousticimpedance are applied to identify different lithologic characters. The results are that the lithology in the studies area is mainlylithic sandstone；the crossplots can well distinguish lithologies in the field，and that the reservoir in the field is evolved fromoriginal high-porosity to low-porosity type nowadays.