中文摘要：

以实验室岩心测试分析为基础，建立泥岩声波时差与实验室分析测试结果的联系，对饶阳凹陷新近系泥岩盖层封闭性进行定量研究．并结合新近系油气分布及前人对油源、输导条件的研究成果，研究盖层、油源断裂等主控因素对饶阳凹陷新近系油气成藏的作用。结果表明：研究区新近系盖层排驱压力中等偏大、分选系数较好、略细歪度，具有较好的封盖能力，新近系油藏盖层根据排驱压力值可分为好（〉2MPa）、较好（2-1．31MPa）、中等（1．31-0．746MPa）和差（〈0．746MPa）；邻近生烃中心、油源断裂发育且盖层排驱压力大的留西、留北地区新近系油藏发育，邻近生烃中心、油源断裂发育的马西洼陷东部地区仅在盖层条件稍好的南马庄地区零星发育新近系油藏。远离生烃中心、油源断裂不发育的皇甫村地区虽然盖层条件优越，仍元法形成新近系油藏。

英文摘要：

Based on laboratory core test analysis, the relation between the mudstone acoustic and laboratory core test analysis of the Neogene cap rock in Raoyang sag was established. The quantitative study on the sealing property of Neogene cap rock in Raoyang sag was carried out. According to the previous study of hydrocarbon distribution, oil source and pathways, the effect of the cap rock, source fault and other main controlling factors during hydrocarbon accumulation were investigated. The results show that the Neogene cap rock of the study area has a medium-higher displacement pressure, good sorting coefficient and slightly fine skewness. So the Neogene cap rock has relative strong sealing ability. The Neogene cap rock is classified in- to four types：best（ 〉2 MPa） ,well（2-1.31 MPa）, anoderate （ 1.31-0. 746 MPa） and bad（ 〈0. 746 MPa） according to the displacement pressure. Neogene oil reservoir is enriched in Liuxi and Liubei area, which is adjacent to hydrocarbon genera- tion center, source fault and high displacement pressure cap rock. Limited by the condition of cap rock, Neogene oil reser- voir only scatters in Nanmazhuang area, east of Maxi sag, which is adjacent to hydrocarbon generation center and source fauh too. The Huangfucun area is far away from hydrocarbon generation center and lack of source fault, although the cap rock is well, it hardly has any Neogene oil reservoir.