南充构造凉高山组油藏储层研究  

LIANGGAOSHAN FORMATION RESERVOIR CHARACTERISTICS OF NANCHONG STRUCTURE,CENTRAL SICHUAN BASIN

作　　者：穆曙光[1] 赵云翔[1] 李宁[1] 

机构地区：[1]西南石油大学资源与环境学院,四川成都610500

出　　处：《西南石油大学学报（自然科学版）》2010年第3期19-24,共6页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：根据四川盆地中部侏罗系凉高山组岩芯分析资料及钻井、录井显示,结合常规物性资料,对其储层的储集空间类型、纵向分布等基本特征以及沉积、成岩作用等进行了深入研究,预测了有利储层分布。研究认为,凉高山组砂岩储层主要分布在凉上段的凉I和凉Ⅱ亚段,砂体厚度不一,在平面上由东向西减薄,为湖相沉积时期的砂坝、砂滩。储层孔隙度、渗透率普遍很低,裂缝较发育,为超低孔隙度致密储层。凉高山组砂岩油藏储层以孔隙-裂缝型为主,局部存在裂缝-孔隙型。The baisc features such as the types of accumulative spaces,the distribution in vertical direction,and the main controlling factors and diagenesis are probed in detail and the favorable reservoir distribution is predicted based on core analysis data,conventional physical property data and well log information of Jurassic Lianggaoshan Formation,central Sichuan Basin.Research indicates the reservoirs are mainly distriduted in Lianggaoshan I and Ⅱsections of upper Lianggaoshan Formation.The thickness of sandbodies is uneven and goes thinner laterally from east to west.The sandbodies are the ones of sand bars and sand beach when lacustrine facies deposited.The prosity and permeability of the reservoirs are generally low with well developed fractures,the reservoirs are ultra-low prosity and tight ones.The sand reservoirs of Lianggaoshan formation are dominated by pore-fracture types with locally existing fracture-pore type.

关 键 词：南充构造 凉高山组 砂岩 储层 四川盆地 致密 

分 类 号：TE122.2[石油与天然气工程—油气勘探]