某区块砂岩储层沉积相及储层物性研究  

Research on sedimentary facies and reservoir properties of sandstone reservoir in a certain block

作　　者：孟欣 袁珍 杨琛皓[4] Meng Xin;Yuan Zhen;Yang Chenhao(School of Earth Science and Engineering,An Petroleum University,Xi'an 710065)

机构地区：[1]西安石油大学地球科学与工程学院,陕西西安710065 [2]西安石油大学陕西省油气成藏地质学重点实验室,陕西西安710065 [3]长庆油田分公司第一采气厂,陕西榆林719000 [4]长庆油田分公司第十采油厂,甘肃庆阳745000

出　　处：《石化技术》2025年第3期263-265,共3页Petrochemical Industry Technology

摘　　要：本研究系统分析了某区块砂岩储层的沉积相类型及其对储层物性的影响。研究区位于某盆地中部,地层发育完整,中生界砂岩层为主要研究对象。通过岩心观察、测井资料解释和地球化学分析,划分出河流相、三角洲相和湖泊相三种沉积相类型。河流相砂岩粒度粗、分选好,孔隙度和渗透率较高;三角洲相砂岩岩性复杂,物性参数波动大;湖泊相砂岩粒度细、泥质含量高,物性较差。储层物性参数分布特征受沉积相、成岩作用和构造作用等多重因素影响,其中沉积相类型对储层物性具有显著控制作用。研究结果为该区块油气勘探和开发提供了科学依据。This study systematically analyzed the sedimentary facies types of sandstone reservoirs in a certain block and their impact on reservoir properties.The research area is located in the central part of a certain basin,with complete geological development,and the Mesozoic sandstone layer is the main research object.Through core observation,logging data interpretation,and geochemical analysis,three types of sedimentary facies have been identified:fluvial facies,delta facies,and lacustrine facies.Riverine sandstone has coarse grain size,good sorting,high porosity and permeability;The lithology of delta sandstone is complex,and its physical propertiesfluctuate greatly;The lacustrine sandstone hasfine grain size,high mud content,and poor physical properties.The distribution characteristics of reservoir physical parameters are influenced by multiple factors such as sedimentary facies,diagenesis,and tectonic activity,among which sedimentary facies type has a significant controlling effect on reservoir physical properties.The research results provide scientific basis for oil and gas exploration and development in this block.

关 键 词：砂岩储层 沉积相 物性特征 某区块 油气勘探 

分 类 号：P618.13[天文地球—矿床学]