收稿日期: 2012-02-27
修回日期: 2012-04-20
网络出版日期: 2012-08-10
基金资助
四川省重点学科建设基金项目(编号:SZD0414)资助.
Geochemistry and Petroleum Generation Evaluation of Paleogene Source Rock in M Block of South Sumatra Basin
Received date: 2012-02-27
Revised date: 2012-04-20
Online published: 2012-08-10
袁浩,张廷山,王海峰,李柱正,崔力公 . 南苏门答腊盆地M区块古近系烃源岩特征及评价[J]. 天然气地球科学, 2012 , 23(4) : 646 -653 . DOI: 10.11764/j.issn.1672-1926.2012.04.646
The geochemistry of the Paleogene source rock in the M block of south Sumatra basin is studied in this paper.The results show that the total organic content of Paleogene source rock in this block is high.Vitrinite is the dominant micro-petrological unit,sapropelic and liptinite is secondary,and inertinite is little.Kerogen type is Ⅱ1 ,mixing of Ⅱ1 and Ⅱ2,Ⅱ2,and Ⅲ.The source rocks have ability to produce oil or gas.The values of RO range from 0.44% to 0.71%,with average value of 0.62%.The thermal maturity indicates that source rock is at immature and mature stage.The distribution of oil at the top and gas at bottom occurs vertically in this block due to type of organic matter and thermal maturity of source rock.So we propose that the shallow layer for oil and deep zone for gas would be paid to attention.
Key words: South Sumatra basin; Paleogene; Source rock geochemistry; Evaluation
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