吉木萨尔凹陷芦草沟组孔隙结构定量表征  

Quantitative Characterization of Pore Structure of Lucaogou Formation in Jimsar Sag

作　　者：刘一杉 东晓虎 闫林[3] 陈福利[3] 高艳玲 陈掌星 LIU Yishan;DONG Xiaohu;YAN Lin;CHEN Fuli;GAO Yanling;CHEN Zhangxing(State Key Laboratory of Petroleum Survey and Engineering,China University of Petroleum,Beijing 102249;School of Petroleum Engineering,China University of Petroleum,Beijing 102249;Research Institute of Petroleum Exploration and Development,Beijing 100083;Department of Chemistry and Petroleum Engineering,University of Calgary,Alberta T2N1N4,Canada)

机构地区：[1]中国石油大学油气探测与工程国家重点实验室,北京102249 [2]中国石油大学石油工程学院,北京102249 [3]中国石油勘探开发研究院,北京100083 [4]卡尔加里大学化学与石油工程系,加拿大阿尔伯塔T2N1N4

出　　处：《新疆石油地质》2019年第3期284-289,共6页Xinjiang Petroleum Geology

基　　金：北京市自然科学基金(2184120);国家973项目(2015CB250901)

摘　　要：吉木萨尔凹陷芦草沟组属于典型的页岩油储集层,而页岩油储集层“甜点”作为开发的主要目的层,其孔隙结构特征是储集层研究的根本。运用低温液氮吸附、高压压汞、扫描电镜和核磁共振4种实验方法,对吉木萨尔凹陷芦草沟组储集层孔隙特征进行了分析。结果表明,芦草沟组储集层孔隙类型主要为纳米孔和亚微米孔,纳米孔隙直径主要分布在10~80nm,亚微米孔隙直径主要分布在0.1~0.3μm.并对4种方法进行了对比,明确解释了它们的优缺点以及侧重点。The Lucaogou formation in the Jimsar sag is a typical shale oil reservoir, and the“sweet spot”of shale oil reservoir is the main target for oilfield development. The pore structure of the reservoir is the foundation of reservoir research. The pore characteristics of the reservoir of Lucaogou formation in the Jimsar sag are analyzed by using low temperature liquid nitrogen adsorption, high pressure mercury injection, scanning electron microscopy and nuclear magnetic resonance. The results show that the pore types of the Lucaogou formation are mainly nanopores and submicron pores. The diameter of the nanopores is mainly distributed in the range of 10~80 nm,and the submicron pore diameters are mainly distributed in the range of 0.1~0.3 μm. The four methods are compared and the advantages,disadvantages and priorities of the various methods are clearly explained.

关 键 词：吉木萨尔凹陷 芦草沟组 页岩油 孔隙结构 低温液氮吸附 高压压汞 扫描电镜 核磁共振 

分 类 号：TE112.23[石油与天然气工程—油气勘探]