The primary migration mechanism of oil and gas in Fuyang oil layer showed that gas and oil migrated to Fuyang oil layer along the fault and fracture under the abnormal pressure in the source rocks.

• 对松辽盆地大庆长垣及其以西地区扶杨油层油气初次运移机理的分析表明,油气是在烃源层中超压的作用下沿着断层和裂缝运移到扶杨油层。