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歧北斜坡沙河街组发育多种沉积体系,砂体类型多样,油气资源丰富。从烃源岩特征、储层特征、油气运移条件、圈闭特征及成藏过程等方面研究了歧北斜坡油气成藏条件,明确了坡折控砂机制。认为歧北斜坡具有油气大规模聚集成藏的条件,并建立了坡折带的油气成藏模式,预测了有利勘探区带,指出了岩性油气藏为研究区今后有利的勘探领域。
Shahejie Formation on the northern slope of Qiqihar develops a variety of depositional systems with diverse sand bodies and rich oil and gas resources. From the aspects of source rock characteristics, reservoir characteristics, hydrocarbon migration conditions, trapping characteristics and hydrocarbon accumulation processes, the hydrocarbon accumulation conditions of Qibei slope are studied, and the mechanism of slope sand control is clarified. It is considered that the slopes of Qifeng have the conditions of large-scale accumulation and accumulation of oil and gas, and the mode of hydrocarbon accumulation in slope break zone has been established. The favorable exploration zones have been forecasted and the lithologic reservoirs have been pointed out as the favorable exploration fields in the future.