以稀土硬脂酸盐为前驱体,采用溶剂热法合成了单分散的NaGdF4：Yb,Er上转换荧光纳米颗粒.通过透射电子显微镜（TEM）、X射线衍射仪（XRD）、荧......

Visual models of fractured-vuggy reservoirs were designed and manufactured to conduct experiments of nitrogen assisted g......

通过设计、制作裂缝-孔洞型储集层可视化实验模型,开展了该类储集层注氮气辅助重力泄油实验,分析了注采方式、注气速度、注采井型......