| 南海北部深水区新生代断裂特征与油气聚集 |
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| 引用本文： | 陈玮常,漆家福,吴景富,张功成,何玉平,能源.南海北部深水区新生代断裂特征与油气聚集[J].地质科学,2012,0(3):746-761. |
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| 作者姓名： | 陈玮常 漆家福 吴景富 张功成 何玉平 能源 |
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| 作者单位： | 1. 中国石油大学地球科学学院北京 102249;
2. 中海石油研究总院北京 100027;
3. 中国石油塔里木油田公司勘探开发研究院新疆库尔勒 841000 |
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| 摘 要： | 为了揭示南海北部深水区新生代断裂构造特征及其与油气聚集的关系,以地震资料解释为基础结合钻测井资料,通过编制构造几何学图件,运用油区构造解析原理,对南海北部深水区新生代断裂特征及其发育演化进行系统分析。该区主要发育东西,北东-南西,北东东-南东东3个走向的断裂; 北东和北东东走向的断裂形成时间早于近东西走向的断裂。以珠江组-三亚组为界,南海北部深水区形成了基底和盖层上下两套断裂系统,主要发育持续型、中衰型和晚生型3种类型的正断层,形成了伸展、走滑和垂直3种构造样式。断裂活动控制了南海北部烃源岩的演化与分布、圈闭形成以及油气的运聚; 断陷期是主要的烃源岩形成期,持续沉降有利于烃源岩保存和成熟; 强烈的构造活动形成了多种类型的圈闭,其中在古近系和早中新统时期断裂发育密集,形成众多与断裂和背斜有关的构造圈闭。根据断裂发育和演化特征,由于持续性基底断裂的长期活动,在缓坡带和盆地中的坳中隆和凸起等构造高部位是油气聚集的有利场所,也是深水区下一步油气勘探的重要方向。
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| 关 键 词： | 南海北部 深水区 新生代 断裂 油气聚集 |
| 收稿时间： | 2012-04-10 |
| 修稿时间： | 2012-04-10; |
Cenozoic fault structure and hydrocarbon accumulation in the deepwater area of Northern South China Sea |
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| Chen Weichang,Qi Jiafu,Wu Jingfu,Zhang Gongcheng,He Yuping,Neng Yuan.Cenozoic fault structure and hydrocarbon accumulation in the deepwater area of Northern South China Sea[J].Chinese Journal of Geology,2012,0(3):746-761. |
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| Authors: | Chen Weichang Qi Jiafu Wu Jingfu Zhang Gongcheng He Yuping Neng Yuan |
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| Institution: | 1. College of Geosciences,China University of Petroleum,Beijing 102249;
2. CNOOC Research Institute, Beijing 100027;
3. Exploration and Development Research Institute,Tarim Oilfield Company,PetroChina,Korla,Xinjiang 841000 |
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| Abstract: | To reveal the relationship between the Cenozoic fault structure and the hydrocarbon in the deepwater area of northern South China Sea,based on seismic data interpretation and drill logging data to system analysis fault characteristics and development evolution,by making structural geometry datum,use oil region structure analysis principle.Development of three main trend fault(EW,NE-SW,NEE-SWW),which trend of EW development later than trend of NE-SW and NEE-SWW,to the Zhujiang-Sanya formation as boundaries of basement and cover fault system,development long-term active,presenileactive and late-developed active three types of fault and extension,strike-slip,vertical three types of structural style.Fault activities controlled evolution and distribution of source rock,trap forming and and hydrocarbon accumulation.Faulted Period is important time for source rock,continuous subsided is helpful for its preservation and maturation.Strong tectonic movement formed various types of trap,in Paleogene and Early Miocene,dese fault formed many faults and the anticline structure trap.According to the fault development and evolution features,because the long-term continuous base faults activities,in the ramp zone and the depression of the basin of lung and tectonic uplift high part is oil and gas accumulation of favorable places,which is the next step the important direction of oil and gas exploration in the deep water area. |
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| Keywords: | Northern South China Sea Deepwater area Cenozoic Fault structure Hydrocarbon accumulation |
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