The study of geochemistry characteristics of the oil of Wenchang 13-1/2 oilfields

By using group analysis, chromatography, chromatography-mass spectrometry and other means of testing and research, the geochemical characteristics of Wenchang 13-1/2 oilfields such as crude oil proper ties, parent material types and maturity are summarized, and crude oil sources are analysed.The crude oil of Wenchang 13-1/2 oilfields are typical terrestrial source rock with the characteristics of low sulfur, high wax, and normal maturity, which are inferred mainly come from shallow lacustrine source rocks of Wenchang Group in Wenchang B depression.