| 中国中西部前陆盆地多期成藏、晚期聚气的成藏特征 |
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| 引用本文： | 赵孟军,宋岩,秦胜飞,柳少波,洪峰.中国中西部前陆盆地多期成藏、晚期聚气的成藏特征[J].地学前缘,2005,12(4):525-533. |
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| 作者姓名： | 赵孟军 宋岩 秦胜飞 柳少波 洪峰 |
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| 作者单位： | 中国石油勘探开发研究院,北京100083 |
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| 基金项目： | 国家科技攻关项目;中国石油天然气集团公司资助项目 |
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| 摘 要： | 中国中西部前陆盆地具有优越的天然气成藏条件,同时具有晚期成藏的特征。文中在典型气藏解剖的基础上重点讨论了川西、柴北缘和准南缘前陆盆地的成藏过程,从而指出中国中西部前陆盆地具有多期聚集、晚期聚气的成藏特征,明确指出中国中西部前陆盆地具有最主要的两大成藏期,一是燕山晚期,主要是被动陆缘或中部前陆盆地三叠系烃源岩的油气聚集期;二是喜山晚期,受新构造运动影响,主要是西部陆内前陆盆地的中、新生界烃源岩的天然气成藏期和中部周缘前陆盆地的天然气的调整期。新近纪前陆盆地的发育期控制了中国中西部前陆盆地以中生界煤系烃源岩为主的晚期天然气的聚集。
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| 关 键 词： | 气藏 多期成藏 晚期聚集 前陆盆地 中国中西部 |
| 文章编号： | 1005-2321（2005）04-0525-09 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005-06-30 |
The multi-stage formation of oil-gas pools and late-stage accumulation of gas in the foreland basins in central and western China |
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| ZHAO Meng-jun, SONG Yan, QIN Sheng-fei, LIU Shao-bo, HONG Feng.The multi-stage formation of oil-gas pools and late-stage accumulation of gas in the foreland basins in central and western China[J].Earth Science Frontiers,2005,12(4):525-533. |
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| Authors: | ZHAO Meng-jun SONG Yan QIN Sheng-fei LIU Shao-bo HONG Feng |
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| Institution: | Research Institute of Petroleum Exploration and Development. PetroChina. Beijing 100083.China |
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| Abstract: | There were excellent geological conditions for formation of gas pools that accumulated in the late stages of foreland basins in middle western China. The paper analyzes the hydrocarbon accumulation of gas pools in the western Sichuan foreland basin, northern Qaidam thrust and the southern Junggar foreland basin. It indicates that the oil-gas fields were formed by multi-stage filling and that the gas pools accumulated in the late stages of the foreland basins. There were two most important stages for oil-gas accumulation in the foreland basins of middle western China. One was the I.ate Yanshanian movement when oil and gas accumulated mainly from source rocks of a passive continental margin and from Triassic foreland basins in central China; another during the Irate Himalayan movement when oil and gas mainly from Meso Cenozoic source rocks of intra-continentai foreland basin in western China and accumulated in gas fields of peripheral foreland basins in central China. The sedimentation of foreland basin in the Neogene had a controlling influence on the late-stage accumulation of gas, which is mainly derived from Mesozoic coal measure. |
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| Keywords: | gas pools multi-stage hydrocarbon filling accumulation in the late stage foreland basins central and western China |
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