现代地质2009，Vol.23Issue(5)：908-915,8.
阿尔及利亚Chelif盆地中-新生界烃源岩研究
Meso-Cenozoic Source Rock of Chelif Basin in Algeria
张春书 1王玥 2张元福 2郭岭 2陆裕3
作者信息
- 1. 中国科学院,广州地球化学研究所,广东,广州,510640
- 2. 中国地质大学,能源学院,北京,100083
- 3. 辽河油田,勘探开发研究院,辽宁,盘锦,124010
- 折叠
摘要
Abstract
There was no breakthrough in exploration of Chelif Basin for nearly half a century, and whether effective source rocks existed or not had become the main factors of controlling exploration. According to the geochemical analysis of samples collected from outcrop and drilling core, characteristics and distribution of Meso-Cenozoic source rock were studied and forecasted. New technology to calculate TOC value by using ΔlogR could make up for the inadequacy of samples.As a superimposed basin of Meso-Cenozoic in the northwest of Algeria, Chelif Basin, at the passive continental margin in the period of Cretaceous, was in an extentional structural environment and was a marine facies basin. Chelif Basin evolved into inter-mountain basin in the period of Cenozoic, experiencing fault sag evolutionary process, and was characterized by fast-filling depositional features. The results show that:Upper Cretaceous, Lower Miocene and Upper Miocene source rocks developed, which were moderate-good source rocks according to the abundance of organic matter. Type of organic matter was II kerogen, in low mature-mature phase. Upper Cretaceous marls were the main source rocks of Chelif Basin. Hydrocarbon resources were relatively rich, and the basin was a prospective area to explore in the next step.关键词
Chelif盆地/中-新生界/烃源岩/地球化学分析/ΔlogRKey words
Chelif Basin/ Meso-Cenozoic/ source rock/ geochemical analysis/ ΔlogR分类
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张春书,王玥,张元福,郭岭,陆裕..阿尔及利亚Chelif盆地中-新生界烃源岩研究[J].现代地质,2009,23(5):908-915,8.
