准噶尔盆地玛X井风城组页岩油含油性与岩性特征关系研究  

Study on the relationship between oil-bearing properties and lithologic characteristics of Fengcheng Formation shale oil in well Ma X,Junggar Basin

作　　者：黄卫东 李秀彬 付连明[1] 李怀军 罗宏斌 张小虎 HUANG Weidong;LI Xiubin;FU Lianming;LI Huaijun;LUO Hongbin;ZHANG Xiaohu(Exploration Enterprise of PetroChina Xinjiang Oilfield Company,Karamay,Xinjiang 834000,China;XDEC Geological Research Institute(MudLogging Branch Company)of CNPC,Karamay,Xinjiang 834000,China)

机构地区：[1]中国石油新疆油田公司勘探事业部 [2]中国石油集团西部钻探工程有限公司地质研究院(录井工程分公司)

出　　处：《录井工程》2023年第4期96-103,共8页Mud Logging Engineering

基　　金：中国石油集团公司重大科技项目“自动化/智能化钻井技术与装备研究”之课题3“录井自动采集智能分析关键技术与装备研究”(编号:2021DJ4303);中国石油新疆油田分公司科技项目“玛北风城组页岩油储层录井评价技术研究”(编号:ktytyt-22001)。

摘　　要：近两年,随着准噶尔盆地玛湖凹陷风城组碱湖相页岩油的大力开发,页岩油大油区初步展现,勘探意义重大。鉴于页岩油含油性以及烃类赋存状态是页岩油甜点评价与优选的关键,以玛X井风城组页岩油岩心样品为研究对象,采用岩石热解分析、残余碳分析、X射线衍射分析、X射线荧光元素分析等技术,开展页岩油含油性与烃类赋存状态研究,并通过岩性分析找到页岩油含油性与岩性特征之间的关系。研究表明,玛湖凹陷风城组页岩油中,含油性与矿物分析中白云石含量负相关,与元素分析中镁、硅、钙相关性明显。研究成果为风城组页岩油进一步勘探开发提供了理论依据和技术支撑。In the past two years,with the vigorous development of alkaline lacustrine shale oil in Fengcheng Formation of Mahu sag,Junggar Basin,large shale oil area has initially emerged,and exploration is of great significance.Considering oilbearing properties and hydrocarbon occurrence states of shale oil are crucial to evaluating and selecting shale oil sweet spots,this study focuses on the core samples of shale oil from Fengcheng Formation of well Ma X.Using techniques such as rock pyrolysis analysis,residual carbon analysis,X-ray diffraction analysis,X-ray fluorescence element analysis,etc.,the study was carried out for oil-bearing properties and hydrocarbon occurrence states of shale oil,and the relationship between oilbearing properties and lithologic characteristics was found through lithology analyses.The study shows that the oil-bearing properties of Fengcheng Formation shale oil in Mahu sag are negatively correlated with the dolomite content in mineralogical analysis,and significantly correlate with Mg,Si and Ca in element analysis.The findings provide theoretical basis and technical support for further exploration and development in Fengcheng Formation shale oil.

关 键 词：页岩油 总有机碳 游离烃 成熟度 热裂解峰温度 长英质矿物 含油性 岩性特征 

分 类 号：TE132.1[石油与天然气工程—油气勘探]