氩离子抛光-场发射扫描电镜分析方法在识别有机显微组分中的应用  

Ar-ion polishing FE-SEM analysis of organic maceral identification

作　　者：高凤琳 王成锡[1] 宋岩[2,3] 陈振宏[3] 刘庆新 李卓[2] 姜振学[2] 张欣欣[5] GAO Fenglin;WANG Chengxi;SONG Yan;CHEN Zhenhong;LIU Qingxin;LI Zhuo;JIANG Zhenxue;ZHANG Xinxin(Development and Research Center,China Geological Survey,Beijing 100037,China;State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing 102249,China;Research Institute of Petroleum Exploration&Development,PetroChina,Beijing 100083,China;Institute of Unconventional Oil&Gas,Northeast Petroleum University,Daqing,Heilongjiang 163318,China;Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China)

机构地区：[1]中国地质调查局发展研究中心,北京100037 [2]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [3]中国石油勘探开发研究院,北京100083 [4]东北石油大学非常规油气研究院,黑龙江大庆163318 [5]中国科学院地质与地球物理研究所,北京100029

出　　处：《石油实验地质》2021年第2期360-367,共8页Petroleum Geology & Experiment

基　　金：中国地质调查局项目“地学信息产品开发与社会化服务”(DD20190405);国家科技重大专项(2016ZX05034001-005)联合资助。

摘　　要：氩离子抛光—场发射扫描电镜是页岩储层微观孔隙结构表征的常用手段,但单独依靠扫描电镜观察无法直接识别有机质类型,而荧光显微镜是鉴定显微组分的主要方法。通过大量场发射扫描电镜与荧光显微镜相结合的定位观察技术,实现对扫描电镜下特定显微组分的鉴定和观察,并总结出扫描电镜下有机显微组分鉴定的方法和特征。氩离子抛光—场发射扫描电镜下,可通过有机质的外部形态、硬度、亮度、颜色、突起、有机质孔隙发育特征以及裂隙发育特征等综合判断出结构镜质体、无结构镜质体、镜屑体、丝质体、半丝质体、菌类分泌体、惰屑体、油沥青以及焦沥青。Argon-ion polishing field emission-scanning electron microscopy(FE-SEM)is a common method to characterize the microscopic pore structure characteristics of shale reservoirs,but organic macerals cannot be directly identified by FE-SEM alone.Fluorescence microscopy is the main method for identifying macerals.Through a large number of localized FE-SEM and fluorescence microscopy observations,the microscopic characteristics of specific macerals under FE-SEM were summarized.The macerals visualized using FE-SEM can be interpreted based on features such as the external shape,hardness,brightness,color,relief,organic pore development characteristics and fissure development characteristics of the organic matter.Telinite,collotelinite,vitrodetrinite,fusinite,semifusinite,funginite,inertodetrinite,oil bitumen and pyrobitumen were identified.

关 键 词：氩离子抛光 场发射扫描电镜 有机显微组分 

分 类 号：TE135[石油与天然气工程—油气勘探]