| 中国西北地区沉积盆地石油地质 |
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| 引用本文： | 李德生,何登发.中国西北地区沉积盆地石油地质[J].海相油气地质,2002,7(1):1-6. |
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| 作者姓名： | 李德生 何登发 |
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| 作者单位： | 中国石油勘探开发研究院 |
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| 摘 要： | 中国近代石油工业创始于西北地区诸含油气盆地。近年来,由于国家西部大开发的发展战略,使西北地区的勘探活动又重新活跃起来。在中国西北含油气盆地内,古生界海相沉积和中、新生界陆相沉积都有生成油气的烃源岩。塔里木、准噶尔、柴达木、吐鲁番和酒泉等主要沉积盆地动力学演化史可划分为三个旋回,每一旋回都经历了由伸展到聚敛的完整演化过程。中国西北地区含油气前景看好,随着勘探工作的进展,将会在此区继续发现一些大、中型的油、气田。
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| 关 键 词： | 中国西北 沉积盆地 石油地质 构造演化 地球动力学 |
Petroleum Geology of Sedimentary Basins in Northwest China |
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| Li Desheng,He Dengfa.Petroleum Geology of Sedimentary Basins in Northwest China[J].Marine Origin Petroleum Geology,2002,7(1):1-6. |
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| Authors: | Li Desheng He Dengfa |
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| Institution: | Li Desheng He Dengfa |
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| Abstract: | The main sedimentary basins in Northwest China have under- gone a long history of differentiation and superposition.In light of plate movements,tectonic sequences and tectonic subsi- dences,the geodynamic evolution history of most sedimentary basins,such as Tarim, Jungger,Qaidam,Turpan and Jiuquan basins,can be divided into three large geological cycles,that is from Sinian to Devonian,Carboniferous to Triassic and Jurassic to Quaternary.Each cycle began from regional exten- sions,followed successively to strong convergences.Among the three geological cycles,the extension intensity were get- ting more and more lessened,but those of convergences were becoming more and more strengthened.On the frontal edge of the collisional fold belts,there are numerous foreland basins. Lateral strike-slip movements of the AItun fault caused by Oligocene orogeny control the basin evolution along north and south sides of the fault.Now total 78 oilfields and 27 gasfields have been proven,among which 66 oilfields and 5 gasfields are developed.The prospect of Northwest China petroliferous basins is promising. |
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| Keywords: | sedimentary basin orogeny extension converqence Northwest China |
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