| 盆—山油气关系实例浅析 |
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| 引用本文： | 支家生.盆—山油气关系实例浅析[J].海相油气地质,2010,15(2):76-78. |
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| 作者姓名： | 支家生 |
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| 作者单位： | 中国石油杭州地质研究院 |
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| 摘 要： | 克拉通盆地的前身常常是古老硬陆块,而有些巨型造山带的前身则是深海。深海中可以形成天然气水合物,并对其下方的游离气和深部的油气具有封盖意义,使它们得以向邻域的台地高处发生迁移,从而使现今造山带的烃源岩与盆地区的油气资源发生内在的联系。北美落基山区泥盆纪伍德福页岩、俄罗斯乌拉尔山区的烃源岩、中东的扎格罗斯山区烃源岩等都是确认的优良烃源岩,它们对油气储量具有积极贡献。我国四川盆地、塔里木盆地油气储量与盆地内烃源岩不匹配的难题也可由造山带(古大洋区)提供油气而得到解释。因此,石油工作者需重视造山带中烃源岩对克拉通盆地油气储量的贡献。
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| 关 键 词： | 造山带 克拉通盆地 烃源岩 油气资源 |
Brief Case Discussion on Relationship of Hydrocarbon in Basins to Orogenic Belts |
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| Zhi Jiasheng.Brief Case Discussion on Relationship of Hydrocarbon in Basins to Orogenic Belts[J].Marine Origin Petroleum Geology,2010,15(2):76-78. |
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| Authors: | Zhi Jiasheng |
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| Abstract: | The predecessors of craton basins are usually ancient hard land masses while the predecessors of some huge orogenic belts are deep seas.Natural gas hydrate that can form in deep seas may play a cap role to the underlaying free gas and hydrocarbon,which may leads to migration of them to the neighbour high platforms.Therefore,it is deduced that there would be some intrinsic relationship between hydrocarbon resource in basins and the source rocks in current orogenic belts.A great many source rocks that are affirmed to be excellent in the world,such as the Devonian Woodford shales in Rocky Mountain region(North American),the source rocks in Ural Mountain region(Russia) and in Zagros mountains(the Middle East),have an active contribution to oil and gas reserves.The problem that the oil and gas reserves in Sichuan and Tarim basins in China do not match in amount with the hydrocarbon generated from the source rocks in these basins can be resolved by the answer that the hydrocarbon would be provided from the orogenic belts(i.e.the primary paleo-ocean regions).It is suggested that an attention should be paid for us to the important contribution of source rocks in orogenic belts to oil and gas reserves in craton basins. |
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| Keywords: | Orogenic belt Craton basin Source rock Hydrocarbon resource |
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