| 二连盆地巴音都兰凹陷热演化史研究 |
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| 引用本文： | 任战利,刘池阳,冯建辉,蒲仁海,李进步.二连盆地巴音都兰凹陷热演化史研究[J].石油学报,2000,21(4):42-45. |
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| 作者姓名： | 任战利 刘池阳 冯建辉 蒲仁海 李进步 |
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| 作者单位： | 1. 西北大学,陕西西安,710069
2. 中原石油勘探局勘探开发研究院,河南濮阳,457001 |
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| 基金项目： | 华北石油勘探局合作项目 |
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| 摘 要： | 应用镜质体反射率法恢复了巴音都兰凹陷的古地温演化史，研究结果表明巴音都兰凹陷侏罗纪与白垩纪具有不同的地温场特征，晚侏罗世古地温梯度高于早白垩世地温梯度，早白里垩地温梯度可达4.80~5.12℃/100m，晚白垩世以来凹陷整体抬升，地温梯度降低。下白垩统烃源岩热演化程度主要受地温控制，主生油期在腾二段及赛汉组沉积时期。
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| 关 键 词： | 二连盆地 巴音都兰凹陷 古地温 古地温梯度 生油期 |
| 收稿时间： | 1999-5-3 |
| 修稿时间： | 1999-05-03 |
RESEARCH ON GEOTHERMAL HISTORY OF BAYINDULAN DEPRESSION IN ERLIAN BASIN |
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| REN Zhanli,et al..RESEARCH ON GEOTHERMAL HISTORY OF BAYINDULAN DEPRESSION IN ERLIAN BASIN[J].Acta Petrolei Sinica,2000,21(4):42-45. |
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| Authors: | REN Zhanli |
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| Abstract: | The palaeotemperature evolution of Bayindulan depresion has been recovered with the method of vitrinite reflectance. Research results indicate that the geothermal field of Jurassic was different from that of Cretaceous. Palaeogeothermal gradient in Late Jurassic was higher than that in Cretaceous. Palaeogeothermal gradient in Early Cretaceous was between 4.80℃/100m to 5.50℃/100m. The depression has uplifted as a whole and geothermal gradient has decreased since Late Cretaceous. Evolution characteristics of lower Cretaceous source rock were mainly controlled by palaeotemperature. Period of main oil generation was during the deposition of groupes from the second member of tengger group to the saihan group. |
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| Keywords: | Erlian Basin Bayindulan Deperession palaeotemperature palaeogeothermal gradient period of oil generation |
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