| 鄂尔多斯盆地演武-三岔地区长8油层组物源分析 |
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| 引用本文： | 李昱东,罗顺社,何维领,吕奇奇,孙雨轩.鄂尔多斯盆地演武-三岔地区长8油层组物源分析[J].石油地质与工程,2015,29(4). |
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| 作者姓名： | 李昱东 罗顺社 何维领 吕奇奇 孙雨轩 |
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| 作者单位： | 1. 长江大学地球科学学院,湖北武汉,430100
2. 长江大学地球科学学院,湖北武汉430100;油气资源与勘探技术教育部重点实验室(长江大学) |
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| 摘 要： | 鄂尔多斯盆地演武-三岔地区是多油层叠合的含油富集区,但区块开发程度低,地质条件复杂,近年来油气勘探一直未能取得较大的突破。物源分析基于长8油层组三角洲沉积体系,对区内轻矿物组分、碎屑岩特征、重矿物特征、石英阴极发光及粒度特征等进行综合分析,结果表明演武-三岔地区主要受到西南部物源控制和影响,其母岩来自于西南部陇西古陆及南部秦岭的变质岩和酸性岩浆岩组合。
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| 关 键 词： | 鄂尔多斯盆地 长8油层线 物源分析 |
Provenance analysis of Chang-8 reservoir in Yanwu-Sancha region,Ordos basin |
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| Abstract: | Yanwu-Sancha region in Ordos basin is an oil enrichment area with multiple superimposed oil layers.However,due to low development degree and complex geological conditions,hydrocarbon exploration has not achieved bigger breakthrough in that block.Based on delta sedimentary system of Chang 8 reservoir,provenance analysis has been carried out.Through comprehensive analysis of light mineral components,clastic rock characteristics,heavy mineral characteristics and quartz cathode luminescence and granularity characteristics has been done.The results indicate controlled and affected by provenance in the southwest,the parent rocks of Yanwu-Sancha area come from the combination of metamorphic rocks and acidic magmatic rocks of ancient land in west Gansu and Qinling in the south. |
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| Keywords: | Ordos basin Chang 8 reservoir provenance analysis light mineral clastic rock heavy mineral cathode luminescence parent rock |
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