松辽盆地油气无机成因与勘探方向

THE INORGANIC OIL AND GAS IN SONGLIAO BASIN AND THEIR EXPLORATION PROSPECTS

松辽盆地中浅层沉积层勘探已接近饱和,随着油气勘探向深层进军,油气无机成因研究在勘探实践中日益重要。徐家围子深层天然气为典型的无机成因天然气。松辽盆地三肇地区扶、杨油层原油“上生下储”模式的否定,为寻找深部油源提供了可靠的事实依据。古潜山油气藏“新生古储”和“侧向运移”模式的否定,为基岩油气藏无机成因提供了可靠的证据。松辽盆地无机成因油气藏研究需要得到有力的支持和保证,因为基岩油气藏勘探是松辽盆地今后首选勘探目标。

The upside sediment layer of Songliao basin had been nearly explored, alone with the exploration marches to the depth, the research of inorganic oil and gas become much more important. The typical inorganic natural gas had been proved in Xujiaweizi area of Songliao basin. And the injection pattern of oil and gas migration accumulation had been negated in the Sanzhao area. These provide strong theory bases to find oil and gas of deep layer. The models of 'young oil source bed and ancient reservoir' and 'lateral migration' were also negated in reservoir formation of buried hill pool, this points the inorganic source of basement rock oil pool. It needs powerful support to carry through the research of inorganic oil and gas in Somalia basin, and the first exploration target should be basement rock pool exploration in this basin.