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胜利油气区位于渤海湾伸展盆地的济阳坳争和昌潍坳陷的潍北凹陷，是我国东部无机成因非烃类气的富集区，目前已发现二氧化碳气藏个，探明气储量一百余亿立方米，揭示该区具勘探非烃类气藏的较大前景。为进一步寻找非烃类气藏，对该区二氧化碳气藏的成藏条件和分布规律进行了研究。

DISCUSSION ON FORMATION AND OCCURRENCE OF NON HYDROCARBON GAS RESERVOIR IN SHENGLI OIL GAS AREA

??Located in Weibei Sag of Jiyang depression and Changwei depression in Bohai Bay extensional basin,Shengli oil-gas region is the enrichment area of abioganic non-hydrocarbon gas in eastern China.6 CO₂ reservoirs have been discovered and the proved reserves are above 10¹⁰ m³,which indicates this region is of larger exploration potential for non-hydrocarbon gas reservoirs.As this region was influenced by violent plate movement in Mesozoic and Cenozoic era,mantle asthenosphere bumped up,which makes the regional earth crust thinner,large faults developed magmation frequent and the thermal metamorphism of the carbonate rocks in lithosphere occuring,so that a lot of non-hydrocarbon gases cuch as crust-mantle CO₂ etc,were quickly released and non-hydrocarbon gas reservoir were formed in the favourable traps along migration pathway.The distributions of the existing gas reservoirs in the area showes that non-hydrocarbon gas reservoirs are mainly distributed along faults cutting throagh gas source rocks,thermal metamorphism belts,asthenospheric "bumps",and the areas with abnormal terrestrial hrat flow and hellum isotope as well as the favourable neaby traps.