中国石油大学学报（自然科学版）2012，Vol.36Issue(5)：25-31,7.DOI:10.3969/j.issn.1673-5005.2012.05.005
饶阳凹陷新近系盖层质量及其与油气分布的关系
Sealing ability of cap rock and its relationship with hydrocarbon distribution of Neogene in Raoyang sag
摘要
Abstract
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 into four types:best(>2 MPa) ,well(2-1.31 MPa) , .moderate (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 generation center, source fault and high displacement pressure cap rock. Limited by the condition of cap rock, Neogene oil reservoir only scatters in Nanmazhuang area, east of Maxi sag, which is adjacent to hydrocarbon generation center and source fault 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.关键词
饶阳凹陷/新近系/盖层/排驱压力/油源断裂Key words
Raoyang sag/ Neogene/ cap rock/ displacement pressure/ source fault分类
能源科技引用本文复制引用
赵利杰,蒋有录,庞玉茂,杨德相,范炳达..饶阳凹陷新近系盖层质量及其与油气分布的关系[J].中国石油大学学报（自然科学版）,2012,36(5):25-31,7.基金项目
国家自然科学基金项目(40972094) （40972094）
