Formation,evolution,reconstruction of black shales and their influence on shale oil and gas resource  

作　　者：Shi-zhen Li Qiu-chen Xu Mu Liu Guo-heng Liu Yi-fan Li Wen-yang Wang Xiao-guang Yang Wei-bin Liu Yan-fei An Peng Sun Tao Liu Jiang-hui Ding Qian-chao Li Chao-gang Fang 

机构地区：[1]State Key Laboratory of Continental Shale Oil,Beijing 100083,China [2]The Key Laboratory of Unconventional Oil and Gas Geology,China Geological Survey,Beijing 100083,China [3]Oil and Gas Survey,China Geological Survey,Ministry of Natural Resources,Beijing 100083,China [4]State Key Laboratory of Lithospheric and Environmental Coevolution,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China [5]School of Geosciences,China University of Petroleum(East China),Qingdao 266580,China [6]School of Energy Resources,China University of Geosciences(Beijing),Beijing 100083,China [7]Key Laboratory of Petroleum Resources Research,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China [8]School of Resource and Environment Engineering,Anhui University,Hefei 230601,China [9]Yangtze University,Wuhan 430100,China [10]Nanjing Center,China Geological Survey,Nanjing 210016,China [11]National Elite Institute of Engineering,CNPC,Beijing 100096,China

出　　处：《China Geology》2024年第3期551-585,共35页中国地质（英文）

基　　金：supported by the projects of the China Geological Survey(DD20230043,DD20240048);the project of the National Natural Science Foundation of China(42102123)。

摘　　要：Black shales are important products of material cycling and energy exchange among the lithosphere,atmosphere,hydrosphere,and biosphere.They are widely distributed throughout geological history and provide essential energy and mineral resources for the development of human society.They also record the evolution process of the earth and improve the understanding of the earth.This review focuses on the diagenesis and formation mechanisms of black shales sedimentation,composition,evolution,and reconstruction,which have had a significant impact on the formation and enrichment of shale oil and gas.In terms of sedimentary environment,black shales can be classified into three types:Marine,terrestrial,and marine-terrestrial transitional facies.The formation processes include mechanisms such as eolian input,hypopycnal flow,gravity-driven and offshore bottom currents.From a geological perspective,the formation of black shales is often closely related to global or regional major geological events.The enrichment of organic matter is generally the result of the interaction and coupling of several factors such as primary productivity,water redox condition,and sedimentation rate.In terms of evolution,black shales have undergone diagenetic evolution of inorganic minerals,thermal evolution of organic matter and hydrocarbon generation,interactions between organic matter and inorganic minerals,and pore evolution.In terms of reconstruction,the effects of fold deformation,uplift and erosion,and fracturing have changed the stress state of black shale reservoirs,thereby having a significant impact on the pore structure.Fluid activity promotes the formation of veins,and have changed the material composition,stress structure,and reservoir properties of black shales.Regarding resource effects,the deposition of black shales is fundamental for shale oil and gas resources,the evolution of black shales promotes the shale oil and gas formation and storage,and the reconstruction of black shales would have caused the heterogeneous distribution of

关 键 词：Black shales Shale oil and gas Resource effects Sedimentary environment Sedimentary process Organic matter accumulation Diagenetic evolution Thermal evolution Organic matter and inorganic minerals Tectonic reconstruction Oil and gas exploration engineering VEINS Fluid activity 

分 类 号：P618.13[天文地球—矿床学]