砂岩基质酸化技术是石油工业中油气井、注水井增产增注的有效手段之一，砂岩基质酸化酸岩反应和二次伤害机理研究是优选酸液体系与优化酸化设计的基础，环境扫描电子显微镜是进行此项研究的重要工具，它具有对含有油水岩心经酸浸泡或岩心酸化流动试验前后进行实体定位对比... Sandstone matrix acidification technology is one of the effective methods to increase production and injection of oil and gas wells and water injection wells in petroleum industry. Acidification acid rock reaction and secondary injury mechanism of sandstone matrix are the basis of optimizing acid system and optimizing acidification design. Environmental scanning electron microscope Is an important tool for this study, which has the physical positioning comparison of the oil-water core with acid-soaked or core-acidized flow test before and after ...