摘要
The response of Raman spectroscopy characteristic of gas washing in Lunnan area was discussed by analyzing the homogenization temperature and the inclusion composition. The results show that since the Himalaya movement,the original accumulation in Lunnan area has experienced an intense invasion by the dry gas,triggering a deep revolution process of phase fractionation.The calculation results of relative depletion of n-alkanes of the oil show that the intensity of the gas washing decreases westward and the boundary of phase fractionation locates along the well LG17 and LG100.