• 责任者：Ping Hongwei (Key Laboratory of Tectonics and Petroleum Resources ; Ministry of Education ; China University of Geosciences ; Wuhan 430074 ; China) ; Chen Honghan
• 刊名：Earth Science
• 出版年：2012
• 卷期：37(1)
• 关键词：油气藏形成 ; reservoir formation ; 油气充注 ; oil and gas charging ; 东营凹陷 ; Dongying Sag
• 页码：p.163-170
• 图表：4 illus., 1 table, 27 refs.
• 分类号：1003
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

The petroleum accumulation always accompanies several petroleum charging episodes. The timing of petroleum accumulation determined by fluid inclusion method is usually representative of all the possible petroleum charging episodes, however, not all the petroleum charging episodes have contributions to present petroleum accumulation. The analysis of contributions degree of petroleum charging to present petroleum accumulation is based on API degree prediction. The authors determine which episodic has the most contribution to the present petroleum accumulation by comparing the frequency distribution of API degree of petroleum inclusions with the API degree of present reservoir fluid.