| 查干凹陷毛敦次凸起的形成演化及其与油气的关系 |
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| 引用本文： | 高渐珍,吴光兴,张放东,库国正. 查干凹陷毛敦次凸起的形成演化及其与油气的关系[J]. 中国海上油气, 2002, 0(6) |
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| 作者姓名： | 高渐珍 吴光兴 张放东 库国正 |
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| 作者单位： | 中原油田分公司勘探开发科学研究院 河南濮阳457001(高渐珍，吴光兴，张放东)，中原油田分公司勘探开发科学研究院 河南濮阳457001(库国正) |
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| 摘 要： | 查干凹陷毛敦次凸起的形成时期是制约查干凹陷油气勘探的关键因素。毛敦次凸起曾被认为是一个早白垩世花岗岩侵入体 ,但毛 1井钻探结果证实 ,在毛敦次凸起的侧翼发育扇三角洲沉积体 ,说明毛敦次凸起在早白垩世以前就已存在 ,并成为重要的物源区。毛敦次凸起的形成与演化与查干凹陷油气生成、运移、聚集紧密相关。经过对毛敦次凸起的地层、断裂、岩石成分、有机质热演化程度、地温和地球物理等特征的综合研究 ,重新认识了它的形成与演化及其与油气成藏的关系。
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| 关 键 词： | 查干凹陷 毛敦次凸起 油气成藏 |
FORMATION AND EVOLUTION OF MAODUN SUB-ARCH AND ITS PETROLEUM SIGNIFICANCE IN CHAGAN DEPRESSION |
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| Gao Jianzhen Wu Guangxing Zhang Fangdong Ku Guozheng. FORMATION AND EVOLUTION OF MAODUN SUB-ARCH AND ITS PETROLEUM SIGNIFICANCE IN CHAGAN DEPRESSION[J]. China Offshore Oil and Gas, 2002, 0(6) |
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| Authors: | Gao Jianzhen Wu Guangxing Zhang Fangdong Ku Guozheng |
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| Abstract: | The formation period of Maodun sub_arch is a key constraint on oil and gas exploration in Chagan depression. Maodun sub_arch was once considered to be a granite body intruded before early Cretaceous, but drilling of Mao1 has proved that a delta fan body has developed in the flank of Maodun sub_arch,indicating that Maodun sub_arch formed before early Cretaceous and than became a main provenance. The formation and evolution of Maodun sub_arch are closely related to hydrocarbon generation, migration and accumulation in Chagan depression. By a comprehensive study of stratigraphy faults, rock composition, thermal evolution of organic matter, geotemperature and geophysics in Maodun sub_arch, its formation and evolution,and their relations to hydrocarbon accumulation are rethought. |
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| Keywords: | Chagan depression Maodun sub-arch hydrocarbon accumulation |
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