摘要
为了研究含油气盆地下生上储式大断裂附近多套盖层上下油气分布规律,在断盖配置封闭性组合形成的多层油气运聚条件和有利部位研究的基础上,通过确定上部断盖配置封闭部位和下部各断盖配置不封闭部位,将其叠合建立一套断盖配置封闭性组合形成的多层油气运聚有利部位的预测方法,并将其应用于渤海湾盆地歧口凹陷南北大港地区断盖配置封闭性组合形成的沙河街组、东营组和馆陶组3层油气运聚有利部位预测中。结果表明:南北大港地区断盖配置封闭性组合形成的沙河街组、东营组和馆陶组3层油气运聚有利部位主要分布在其北部中南地区和南部边部地区,是沙河街组、东营组和馆陶组3层油气运聚成藏的有利部位,与目前南北大港地区已发现的沙河街组、东营组和馆陶组油气分布部位相吻合,表明该方法用于预测断盖配置封闭性组合形成的多层油气运聚有利部位是可行的。
To study the distribution law of oil and gas between the upper and lower of several caprocks near large faults of the lower-source upper-reservoir in petroliferous basins,a method was established for predicting the favorable positions for oil and gas migration and accumulation in multi-layers formed by sealing combination of fault-cap configuration.It was established by combining the sealed position of the upper fault-cap configuration and the unsealed position of several fault-cap configurations at the lower part.This method is then applied to predict favorable positions for oil and gas migration and accumulation in multi-layers in the north-south Dagang area of Qikou Sag,Bohai Bay Basin.The results show that the favorable positions for oil and gas migration and accumulation in such multi-layers are mainly distributed in the north-central south and southern border areas,which is consistent with the multi-layer oil and gas distribution positions of Shahejie(Es)Formation,Dongying(Ed)Formation and Guantao(Ng)Formation found in the north-south Dagang area at present.This method is feasible to predict the favorable position for multi-layer oil and gas migration and accumulation formed by the sealing combination of fault-cap configuration.
作者
付广
邓春
于桐
梁木桂
FU Guang;DENG Chun;YU Tong;LIANG Mugui(School of Earth Sciences,Northeast Petroleum University,Daqing 163318,China)
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第6期80-88,共9页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家自然科学基金项目(41872157,42072157,42002140)。
关键词
断盖配置
封闭性组合
多层油气运聚
有利部位
预测方法
fault-cap configuration
sealing combination
multi-layer oil and gas migration and accumulation
favorable position
prediction method
