| 兰坪坳陷油气组群特征及其成因 |
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| 引用本文： | 常象春,郭海花,张金亮.兰坪坳陷油气组群特征及其成因[J].西北地质,2004,37(2):69-74. |
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| 作者姓名： | 常象春 郭海花 张金亮 |
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| 作者单位： | 1. 山东科技大学地球信息科学与工程学院,山东,泰安,271019;山东省油气勘探开发工程技术研究中心,山东,青岛,266510
2. 山东省油气勘探开发工程技术研究中心，山东 青岛，266510；中国海洋大学地球科学学院,山东,青岛,266003 |
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| 基金项目： | 国家攀登计划地质流体项目资助(编号95-预-39-3) |
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| 摘 要： | 兰坪坳陷的油气主要见于金顶矿区的下含矿层，储层主要为上三叠统三合洞组的灰岩和角砾状灰岩。油气地球化学特征表明有机母源输入是多源的，沉积成烃水体介质以还原性占优势．具有较高盐度，有机质热演化处于成熟一高成熟阶段．生物降解改造较为强烈。根据原油的母源贡献、生物降解、环境介质条件等特征，将兰坪坳陷原油划分为3类组群。
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| 关 键 词： | 地球化学 油气组群 油气成因 生物标志物 |
| 文章编号： | 1009-6248(2004)01-0069-06 |
| 修稿时间： | 2003年5月6日 |
Characteristics and genesis of petroleum families in Lanping depression |
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| CHANG Xiang-chun.Characteristics and genesis of petroleum families in Lanping depression[J].Northwestern Geology,2004,37(2):69-74. |
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| Authors: | CHANG Xiang-chun |
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| Institution: | CHANG Xiang-chun~ |
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| Abstract: | Oil were recently discovered in brecciated limestone, micrite kimestone and dolomitized limestone associated with Jinding lead-zinc deposits. The geochemical characteristics indicate that source inputs were multiple. The sedimentary water medium was reducing with high salinity. Thermal evolution is in the stage of mature to high mature characterized by highly biodegradation. Based on the source contributions, biodegradation modification and environmental medium, three petroleum families were classified. |
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| Keywords: | geochemistry petroleum family genesis of petroleum biomarker |
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