Qiongdongnan Basin has a tectonic geological background of high temperature and high pressure in a deep reservoir setting, with mantle‐derived CO₂. A water‐rock reaction device was used under high temperature and high pressure conditions, in conjunction with scanning electron microscope (SEM) observations, to carry out an experimental study of the diagenetic reaction between sandstone at depth and CO₂‐rich fluid, which is of great significance for revealing the dissolution of deep clastic rock reservoirs and the developmental mechanism of secondary pores, promoting deep oil and gas exploration.

中文翻译：

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高温高压下深部砂岩地层中CO 2流体水岩反应实验研究

琼东南盆地在深部储集层环境中具有高温高压的构造地质背景，地幔衍生的CO ₂。在高温高压条件下使用水-岩反应装置，结合扫描电子显微镜（SEM）观察，进行了深层砂岩与富CO ₂流体之间成岩反应的实验研究。对于揭示深部碎屑岩储集层的溶解及次生孔隙的发育机理，促进深部油气勘探具有重要意义。