Saturated hydrocarbon fractions of free oil, sealing oil and bound oil, which are extracted from six oil sands of Yanchang Formation in Xifeng oilfield of northwestern Ordos Basin, Northwest China, have been analyzed by GC/MSD(6890N/5973N) in order.

• 摘要对鄂尔多斯盆地西峰油田三叠系延长组六个油砂样品中游离烃、封闭烃、束缚烃的饱和烃馏分进行了GC-MS分析。