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油藏要素及控制因素研究分析表明,吴起地区侏罗系延10油层组成藏受控于古地貌、储集体、构造以及盖层等因素,延长组长7油页岩是延10油层组有效的源岩供给,辫状河道、心滩等微相砂体是油气良好的储集场所,储层物性较好,前侏罗纪深切河谷是油气运移成藏的主要通道,生烃作用产生的超压使得油气沿着通道运移,并最终在西倾单斜背景下的鼻状隆起聚集成藏。油藏具有油源近、储层发育、生储盖配置较为理想的下生上储特征,并具有多套生储盖组合。
Analysis of reservoir elements and controlling factors shows that the reservoir formation of the Yanju-10 reservoir in the Jurassic of Wuqi area is controlled by paleotopography, reservoirs, structures and caprocks, and the Chang 7 oil shale is effective for the Yan 10 reservoir Micro-facies sandbodies, such as source rocks, braided channels and heart beaches, are good reservoirs for oil and gas with good reservoir properties. Pre-Jurassic deep valleys are the main channel for hydrocarbon migration and accumulation and hydrocarbon generation Overpressure causes the migration of oil and gas along the channel, and finally the nose-shaped uplift in west tilt monoclinic background accumulates into reservoir. The reservoirs have the characteristics of subsurface storage, which are near oil source, reservoir development and reservoir-reservoir configuration, and have multiple reservoir-cap assemblages.