| 碳酸盐岩中烃源的识别—以西藏措勤盆地碳酸盐岩为例 |
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| 引用本文： | 许怀先,蒲秀刚,等.碳酸盐岩中烃源的识别—以西藏措勤盆地碳酸盐岩为例[J].地质学报,2002,76(3):395-399. |
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| 作者姓名： | 许怀先 蒲秀刚 |
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| 作者单位： | 1. 中国石油勘探开发研究院,北京,100083;中国矿业大学,北京,100083
2. 中国矿业大学,北京,100083 |
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| 摘 要： | 碳酸盐岩既可作为烃源岩，也可作为储集岩存在。因此，除直接发现液态石油和气苗外，在野外和室内碳酸盐岩含油的识别都较困难。确定碳酸盐岩中含有的烃类是原生的，还是它处运移充填而来的，这在勘探实践中具有不同的指导意义，本文阐述了用岩石热解分析技术判别碳酸盐岩中烃源的方法。提出了碳酸盐岩含油判别指数P、岩石热解烃最高温度Tmax和岩石中游离烃S1含量等判别碳酸盐岩是否含运移烃的指标。用此方法研究了西藏措勤盆地碳酸盐岩含油显示，发现强龙松纳背斜在1805剖面下白垩统郎山组1段（K1l^1)碳酸盐岩曾有油气运移过程存在。同时用其它方法证明了岩石热解技术对碳酸盐岩含运移烃的识别是可靠的。
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| 关 键 词： | 碳酸盐岩 运移烃 岩石热解 含油判别指数 游离烃S1 烃源岩 西藏 措勤盆地 |
| 修稿时间： | 2001年12月11 |
Source Identification of Hydrocarbons in Carbonate Rocks -A Case Study of the Coqen Basin in Tibet |
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| XU Huaixian,PU Xiugang,HAN Dexin Research Institute of Petroleum Exploration and Development of PetroChin,Beijing, China University of Mining and Technology,Beijing.Source Identification of Hydrocarbons in Carbonate Rocks -A Case Study of the Coqen Basin in Tibet[J].Acta Geologica Sinica,2002,76(3):395-399. |
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| Authors: | XU Huaixian PU Xiugang HAN Dexin Research Institute of Petroleum Exploration and Development of PetroChin Beijing China University of Mining and Technology Beijing |
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| Abstract: | Carbonate rocks are both source rocks and reservoir rocks. Therefore, it is very difficult for us to deter-mine if they are reservoir rocks and contain hydrocarbons having migrated from other source rocks. But it is very important in decision making of oil exploration whether the oil in carbonate rocks is generated in situ or is transported from other sources. This paper describes the source identification method of hydrocarbons in car-bonate rocks with the Rock-Eval technology. Meanwhile, we also show the indicators of source identification for carbonate rocks including the oil potential identification parameter, P, Tmax and free hydrocarbon content S1. The Coqen basin in Tibet is an example of the hydrocarbon source identification for carbonate rocks. It has been proven that it is reliable to use the Rock-Eval technology to determine the carbonate rocks containing mi-grating hydrocarbons. |
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| Keywords: | carbonate rock migrating hydrocarbon Rock-Eval oil potential identification parameter free hydrocarbon content S_(1) |
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