八面河广南地区沙四段湖相碳酸盐岩沉积及储层特征  

Sedimentary and reservoir characteristics of lacustrine carbonate rocks in the fourth member of Shahejie Formation in Guangnan area of Bamianhe

作　　者：宋光超 同晓山 汪志璇 康曦 SONG Guangchao;TONG Xiaoshan;WANG Zhixuan;KANG Xi(Research Institute of Exploration&Production,Sinopec Jianghan Oilfield Company,Wuhan,Hubei 430223,China)

机构地区：[1]中石化江汉油田分公司勘探开发研究院,湖北武汉430223

出　　处：《江汉石油职工大学学报》2025年第2期14-16,22,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：结合岩芯、测井、分析测试等资料的综合分析,根据沉积构造、组构、岩石矿物组分等将沙四段4砂组岩相类型划分为层状颗粒碳酸盐岩、纹层状泥质泥晶碳酸盐岩、层状含云灰质砂岩、纹层状含云灰质泥岩四种岩相类型,并在此基础上明确了不同岩相类型的测井响应特征及展布规律。结合储层特征分析,明确层状颗粒碳酸盐岩物性整体上优于纹层状泥质泥晶碳酸盐岩。Through comprehensive analysis of core,logging,and test data,this study categorizes the lithofacies of the fourth member of Shahejie Formation's fourth sand group into four types based on sedimentary structures,textures,and mineral compositions:layered granular carbonate rock,laminated argillaceous micritic carbonate rock,layered dolomite-bearing sandstone,and laminated dolomite-bearing mudstone.It further clarifies the logging response characteristics and distribution patterns of these lithofacies.Combined with reservoir property analysis,the study confirms that layered granular carbonate rocks exhibit superior physical properties compared to laminated argillaceous micritic carbonate rocks.

关 键 词：广南地区 碳酸盐岩 岩性岩相 储层特征 沉积模式 

分 类 号：P618.3[天文地球—矿床学]