红车断裂带石炭系火山岩岩性岩相特征分析及储层识别  

Lithology and lithofacies characteristics analysis and reservoir identification of Carboniferous volcanic rocks in Hongche fault zone

作　　者：殷文 冯程 周发鑫 冯梓岩 孙廷彬 高志伟[2] 蒲钰龙 周隶华 YIN Wen;FENG Cheng;ZHOU Faxin;FENG Ziyan;SUN Tingbin;GAO Zhiwei;PU Yulong;ZHOU Lihua(China University of Petroleum(Beijing)at Karamay,Karamay 834000,China;No.1 Oil Production Plant of Xinjiang Oilfield,PetroChina,Karamay 834000,China)

机构地区：[1]中国石油大学(北京)克拉玛依校区,新疆克拉玛依834000 [2]中国石油新疆油田分公司采油一厂,新疆克拉玛依834000

出　　处：《中国石油大学学报（自然科学版）》2023年第1期50-61,共12页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(42004089);新疆维吾尔自治区自然科学基金项目(2020D01A141,2021D01E22)。

摘　　要：结合录井岩屑、测井曲线和薄片资料,分析不同岩性测井响应特征,利用多参数分布交会法建立组合岩性识别图版,明确优势岩性特征。基于岩心刻度测井思路和火山岩储层特征,对研究区石炭系储层岩性、岩相进行精细划分,识别火山岩相特征。结合研究区储盖条件及地震反射结构和构型,分析火山机构特征及油气藏分布规律。运用地震多属性分析和沿层切片技术,并通过对地震平-剖面成果与井上有利储层的对比验证,进而确定优势储层的空间展布。结果表明:密度-电阻率/自然伽马交会图能够较好地区分玄武岩、安山岩和火山角砾岩,电阻率-自然伽马/密度交会图能够较好地区分火山角砾岩、安山岩和凝灰岩;火山喷发的凝灰岩和间断期的火山沉积岩形成良好的盖层,溢流相的安山岩/玄武岩和爆发相的火山角砾岩形成良好的储集层;综合运用地震纹理和瞬时相位余弦属性及沿层切片技术能够较好地刻画有利储层分布范围;研究区火山岩油气藏是受岩性和火山机构共同控制的非均质岩性油气藏。The logging response characteristics of different lithologies are analyzed,the combined lithology identification charts are established,and the dominant lithology characteristics are defined,by combining logging cuttings,logging curves and thin section data.Based on the idea of core calibration logging and the characteristics of volcanic reservoir,the lithology and lithofacies of the Carboniferous reservoir in the study area are finely divided,and the characteristics of volcanic facies are identified.Combined with the conditions of reservoir and caprock and seismic reflection structure and configuration,the characteristics of volcanic institutions and the distribution law of oil-gas reservoirs are analyzed.The spatial distribution of the superior reservoirs is determined by using seismic multi-attribute analysis and slicing technology along the layers,and by comparing the seismic plan-section results with the favorable reservoirs on the well.The results show that the crossplot of density and resistivity/natural gamma can be used to better distinguish basalt,andesite and volcanic breccia.The crossplot of resistivity and natural gamma/density is better for distinguishing volcanic breccia,andesite and tuff.The tuff of volcanic eruption and volcanic sedimentary rock of discontinuous period form a good caprock.The andesite/basalt of overflow facies and the volcanic breccia of explosive facies form a good reservoir.The distribution range of favorable reservoirs can be better characterized by a comprehensive application of seismic texture,instantaneous phase cosine attribute and slicing along layers.Volcanic rock reservoirs in the study area are heterogeneous lithologic reservoirs jointly controlled by lithology and volcanic institutions.

关 键 词：红车断裂带 火山岩储层 岩性识别 岩相特征 储层识别 

分 类 号：TE121.1[石油与天然气工程—油气勘探]