沉积学报2023，Vol.41Issue(6)：1859-1889,31.DOI:10.14027/j.issn.1000-0550.2023.010
致密砂岩储层中黏土矿物发育特征及其生长机理研究进展
Advances in Studies of Development and Growth Mechanisms of Clay Minerals in Tight Sandstone Reservoirs
摘要
Abstract
[Objective]The widely developed clay minerals found in sedimentary rocks are links to the whole geologi-cal process of tectonism,sedimentation and diagenesis,and they record information about the water-rock-hydrocarbon interactions on many different scales over the entire sedimentary basin.Systematic investigation of the formation,growth and transformation of clay minerals in sandstone reservoirs is of important academic significance regarding the completion of the diagenetic framework,and it also strongly supports reservoir exploration and development in tight sandstones from the perspective of pore-throat evolution and pore-permeability response.[Methods]Focusing on this theme,the basic characteristics,material bases and growth environments of montmorillonite,kaolinite,illite,chlo-rite and other mixed-layer clay minerals are discussed in detail.This summary of previous classical views and recent findings enables the key issues to be categorized.[Results]The results show that there is an obvious spatial coupling relationship between clay minerals,parent rocks and sedimentary microfacies.Mechanical percolation and biological induction mechanisms may have existed in forming internal clay coating,and these are topics for follow-up research.The diagenetic environment dominates the growth of the outer clay coating;other geological fluid-rock interactions are related by material dependence and competition for space,and have the opposite effect on the fluid medium.In petroliferous basins,the effect of clay minerals on reservoir quality may range from absolutely negative to relatively positive,depending on the pore-throat structure and diagenetic process.Microzone in-situ analysis technology was used to accurately reveal the growth process of clay minerals and its effect on reservoirs at the whole-basin scale,thus meeting the realistic demand of petroleum exploration and development and also emphasizing the importance of geo-logical fluid-rock interaction studies.[Conclusion]Technical innovation has resulted in a deeper geological under-standing,and its application has gradually improved practical exploration as well as providing a sound theoretical basis for increasing petroleum storage and production.关键词
黏土矿物/生长机理/致密砂岩/控储作用/研究展望Key words
clay minerals/growth mechanism/tight sandstone/effects on petroliferous reservoirs/research prospects分类
天文与地球科学引用本文复制引用
蔡来星,杨田,田景春,易娟子,任启强..致密砂岩储层中黏土矿物发育特征及其生长机理研究进展[J].沉积学报,2023,41(6):1859-1889,31.基金项目
国家自然科学基金项目(41906188,42072126) （41906188,42072126）
油气藏地质及开发工程国家重点实验室开放基金(PLC20210111) （PLC20210111）
自然资源部沉积盆地与油气资源重点实验室开放基金(CDCGS2020003)National Natural Science Foundation of China,No.41906188,42072126 （CDCGS2020003）
The Open-End Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,No.PLC20210111 （）
The Open-End Fund of Key Laboratory of Sedimentary Basin and Oil and Gas Resources,Ministry of Natural Resources,No.CDCGS2020003 （）
