題 目：Using electrical geophysics and nuclear magnetic resonance to study carbonate pore structure
主講人：張弛（博士）
時 間：2018年5月26日（星期六）上午10:00-12:00
地 點：明辨樓D404
主講人單位：美國堪薩斯大學
報告摘要：Characterization of fluid flow in carbonate reservoirs is complicated by its highly complex texture and pore network. The interpretation of macroscopic geophysical measurements in carbonate rocks remains phenomenological and challenging. Therefore, the detailed understanding of carbonate structures at pore- and core- scale is essential to develop realistic petrophysical relationships in carbonate rocks and to accurately predict reservoir porosity and permeability. Such research requires highly integrated research strategy including sensing, data analysis, and modeling. In this talk, I will present our study on carbonate pore structure characterization usingμCT imaging, electrical geophysics and nuclear magnetic resonance (NMR), and digital rock physics at pore- and core- scale. Our results elucidate the how porosity, pore size distribution, and permeability correlate and change as the lithofacies change. We examined and discussed the applicability of current NMR and electrical geophysical petrophysical relationships, which were derived mainly from siliciclastic rocks, to carbonate rocks. In digital rock physics, we perform physics-based numerical simulations of porosity, pore size distribution, permeability, and electrical properties of carbonates on reconstructed 3D rock structure fromμCT imaging. The effect of compaction, cementation, as well as dissolution of carbonate on its petrophysical properties is also simulated. Our results suggested the application of geophysical measurements and pore-scale simulation helps advance our understanding of petrophysical properties in carbonate rocks and may ultimately improve interpretation of geophysical measurements in the field.
報告人簡介：張弛，美國堪薩斯大學地質系（the Department of Geology at University of Kansas）Assistant Professor。本科畢業于中山大學，2014年獲美國羅格斯大學（Rutgers University）博士學位。張弛博士專注于綜合利用地球物理和生物地球化學等信息，結合物理建模，從微觀和宏觀尺度對地下介質特征進行精確表征，對控制地球介質和流體性質的物理、化學和生物耦合過程進行深入研究。近年來，張弛博士以第一作者（通訊）在Journal of Geophysical Research, Geophysics, Water Resources Research等期刊發表多篇論文。應邀在美國、中國、歐洲和中東等國家和地區開展學術報告會20余場。張弛博士活躍于美國地球物理聯合會（AGU）和國際勘探地球物理學家學會（SEG）等多個國際學術組織。目前擔任AGU地下地球物理分會秘書和AGU/SEG合作委員會主席。
歡迎全校師生參加！
主辦單位：
天然氣地質四川省重點實驗室
西南石油大學科研處
地球科學與技術學院
中石油碳酸鹽巖儲層重點實驗室
西南石油大學SEG學生分會
西南石油大學EAGE學生分會
