Petroleum charge and entrapment along active faults: Study of the accumulation mechanism of the Qinhuangdao 29 oil field on the slope of the Shijiutuo uplift, Bohai Sea

摘要

In the Qinhuangdao 29 (QHD29) oil field, oil generated from the first member of the Shahejie source rocks is mainly contained in Paleogene reservoirs, whereas deeper oil sourced from the third member of the Shahejie (Es-3) source rocks is generally accumulated in Neogene reservoirs. The present study was undertaken to better understand the differences in petroleum accumulation in the QHD29 oil field and to provide suggestions for future petroleum exploration on the Shijiutuo uplift.