摘要
Nine fluid inclusion samples from five wells in Wangchang oilfield of Qianjiang Sag were observed by fluorescence spectroscopy,and four fluid inclusion samples from four wells were analyzes by micro-temperature surveying,salinity measurement,laser Raman spectroscopy and fluorescence spectroscopy.The results indicate that there are two times of oil charging events in the sandstone reservoirs of the Eq4~u,and the second one is the most important.