Abstract: This paper analyses basic reservoir formation conditions and its characteristics of deep gas in Du-Qiao-Bai area, points out the distribution characters of oil and gas reservoir of "oil in upper zone and gas in lower zone" in Qiaokou area and the character of "Pagoda-shape" for integrated oil and gas distribution in Baimiao area. All types of reservoir in the area are complex gas reservoir controlled by structure and lithology.On this basis and with the theory of abnormal pressure liquid, it analyses focally on the models of inside compartment and fringes compartment for deep gas in Du-Qiao-Bai area. The reservoir model in Du Zhai is inside compartment and fringes of the compartment in Qiaokou. The reservoir model in middle and lower gas pools in Baimiao area belongs to outside compartment. The paper further concludes the control factors of deep gas reservoir in Du-Qiao-Bai area that has great significance for deepening the understanding of oil and gas enrichment law and the determination of future exploration strategy.

Key words: Dongpu Depression, Du-Qiao-Bai area, deep gas, reservoir formation condition, reservoir formation model, control factor, exploration target

摘要： 分析了杜桥白地区深层气基本成藏条件及深层气藏特征,指出了桥口地区具有“上油下气”的特点,白庙地区整体油气分布具有宝塔形特征,气藏类型均受构造及岩性双重控制的复合气藏.在此基础上,用超压流体封存箱及其成藏理论,分析了杜桥白地区深层气以箱内成藏及箱缘成藏模式为主;杜寨构造为箱内成藏、桥口构造为箱缘成藏;白庙中部和下部气藏属箱缘成藏.进一步归纳了杜桥白地区深层气的控制因素,对深化该区油气富集规律的认识,明确下一步勘探方向具有重要意义.

关键词: 东濮凹陷, 杜桥白地区, 深层气, 成藏条件, 成藏模式, 控制因素, 勘探目标