| 济阳坳陷石炭-二叠系热演化与生烃阶段 |
| 修订日期：2000-11-23 |
| 关键词:paleogeothermal gradient thermal evolution Jiyang depression |
| 基金项目:国家自然科学基金(49672131)，中国博士后科学基金资助 |
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| 摘要: |
| Thermal History of the Permo-Carboniferous Coal Source Rocks in Jiyang Depression,Shengli Oilfield |
| Based on an analysis of geological structure and sedimentary history, the authors systematically studied the vitrinite prifile of the image well in Jiyang depression, Shengli oilfield. The Late Paleozoic, Mesozoic and Cenozoic paleogeothermal gradients measured by means of regression equations of vitrinite with depth on the basis of thermodynamics are 3.49～3.92 ℃/100m, 4.33～4.67 ℃/100 m and 3.67 ℃/100m respectively. Thermal anomalies of Mesozoic was caused by Yanshanian magmatic underplating. The primary maturities of the Permo-Carboniferouscoal source rocks before uplifting in Indo-sinian movement and Yanshanian movement were R°=0.52%～0.58% and R°=0.90%～1.11% respectively, which correspond to the thresholds of oil generation and the stage of gas generation. Nevertheless, the oil-gas production was damaged by tectonic uplifting and erosion related to Indo-Sinian movement and Yanshanian movement, which is of great significance in correct evaluation of Carboniferous-Permian oil-gas potential in this area. |
| LI Rong-xi,LIAO Yong-sheng,ZHOU Yi.2001.Thermal History of the Permo-Carboniferous Coal Source Rocks in Jiyang Depression,Shengli Oilfield[J].Acta Geoscientica Sinica,22(1):85-90. |
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