基于岩相组合特征对渤南洼陷沙一段页岩油岩相特征研究  

Based on the lithofacies assemblage characteristics,the shale oil lithofacies characteristics of member Sha-1 of the Bonan Sag are studied

作　　者：刘一粟 许国梓 王海旭 孙国涛 李晓晖 Liu Yisu;Xu Guozi;Wang Haixu;Sun Guotao;Li Xiaohui(Hekou Oil Production Plant of Shengli Oilfield Branch,Dongying,Shandong,257200,China;Reservoir Dynamic Monitoring Center of Shengli Oilfield Branch,Dongying,Shandong,257200,China;Hunan University of Science and Technology,Xiangtan,Hunan,411201,China)

机构地区：[1]胜利油田分公司河口采油厂,山东东营257200 [2]胜利油田分公司油藏动态监测中心,山东东营257200 [3]湖南科技大学,湖南湘潭411201

出　　处：《化工矿产地质》2025年第1期21-28,共8页Geology of Chemical Minerals

摘　　要：本文基于有利岩相组合特征和成因分析对渤南重点页岩油区块沙一段的成藏特征进行分析,通过GRP层序划分法、GR频谱分析和取心井岩电特性分析,综合全岩X射线衍射分析结果对渤南洼陷沙一段进行成藏研究分析,分析岩相特征泥质含量。认为沙一段泥页岩储层孔隙主要发育原生孔隙、次生孔隙(溶蚀孔)、有机质孔,裂缝类型以构造缝、页理缝、黏土矿物收缩缝为主,且微孔含量较少,多以介孔为主。中有机质纹层状云质泥页岩相为储集性较好的岩相,富有机质纹层状文石质泥页岩相、富有机质纹层状灰质泥页岩相为含油性和可动性较好的岩相。为开采渤南洼陷陆相页岩油提供一定依据。Based on the favorable lithofacies assemblage characteristics and genesis analysis,this paper analyzes the accumulation characteristics of member Sha-1 of the key shale oil block in Bonan region,and analyzes the accumulation characteristics of member Sha-1 of the Bonan sag by means of GRP sequence division method,GR spectrum analysis and rock electrical characteristics analysis of coring wells,and analyzes the accumulation of member Sha-1 of the Bonan sag by combining the results of X-ray diffraction analysis of the whole rock,and analyzes the argillaceous content of the lithofacies characteristics.It is believed that the pores of the reservoir of mudstone or shale mainly develop primary pores,secondary pores(dissolution pores)and organic matter pores,and the crack types are mainly structural joints,lamination joints and clay mineral shrinkage joints,and the microporous amount is less,and the mesoporous is predominant.The laminar mica-argillaceous shale facies with a moderate content of organic matter is a good reservoir face.the organic-rich laminar aragonite shale facies and organic-rich laminar limestone shale facies are the facies with good oil-bearing and movability.It provides a certain basis for the exploitation of continental shale oil in the Bonan sag.

关 键 词：成藏特征 GRP层序划分法 GR频谱分析 渤南洼陷 

分 类 号：P539.2[天文地球—古生物学与地层学] P618.13[天文地球—地质学]