| 下扬子区海相油气成藏特征 |
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| 引用本文： | 陈红,龚洪春,杨友胜,叶新民,叶先涛,郭念发.下扬子区海相油气成藏特征[J].地质学刊,2003,27(3):148-151. |
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| 作者姓名： | 陈红 龚洪春 杨友胜 叶新民 叶先涛 郭念发 |
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| 作者单位： | 中石化新星石油公司华东石油局规划设计研究院 江苏南京210031
(陈红，龚洪春，杨友胜，叶新民，叶先涛)，中石化新星石油公司华东石油局规划设计研究院 江苏南京210031(郭念发) |
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| 摘 要： | 下扬子区从晚震旦世开始至中三叠世沉积了三套巨厚的海相烃源岩系，即上震旦统一上奥陶统、石炭系一二叠系、下三叠统海相烃源岩。三套烃源岩热演化特点不同，下古生界烃源岩经历了加里东、印支——燕山期构造阶段的热演化，已达过成熟干气阶段；上古生界烃源岩基本处于生油阶段晚期；大部分三叠系烃源岩处于成熟生油阶段，少数处于未成熟阶段。全区海相油气储盖条件发育，配置有利，具有良好的找油气前景。
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| 关 键 词： | 海相油气 烃源岩 下扬子区 成藏特征 |
| 文章编号： | 1003-6474(2003)03-0148-04 |
| 修稿时间： | 2003年3月7日 |
Diagenetic Characters of Marine Oil-gas in Lower Yangtze Region |
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| CHEN Hong,GONG Hong-Chun,YANG You-sheng,YE Xin-min,YE Xian-tao,GUO Nian-fa.Diagenetic Characters of Marine Oil-gas in Lower Yangtze Region[J].Jiangsu Geology,2003,27(3):148-151. |
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| Authors: | CHEN Hong GONG Hong-Chun YANG You-sheng YE Xin-min YE Xian-tao GUO Nian-fa |
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| Abstract: | Since late Sinian Epoch to middle Triassic Epoch, three sets of huge-thick marine hydrocarbon source rocks were deposited in the lower Yangtze region, they are marine hydrocarbon source rocks of upper Sinian series - upper Ordovician series, Carboniferous system - Permian system and lower Triassic series. These three set of hydrocarbon source rocks were of different thermal evolution characteristics. The hydrocarbon source rocks in lower Palaeozoic Erathem underwent the thermal evolution of tectonic phase of Caledonian, Indosinian - Yanshan phase, reaching a maturate dry gas period; the hydrocarbon source rocks in lower Palaeozoic Erathem were in the late oil-producing period; most of the hydrocarbon source rocks in Triassic system were in a maturate oil-producing period, some not. It is concluded that the reservoir and capping conditions develop in the whole region, and are favorably distributed, of a fine oil-gas prospecting prospect. |
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| Keywords: | Marine oil-gas Favorable distribution Lower Yangtze region |
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