MAIN CONTROLLING FACTORS AND ACCUMULATION MODELS OF HYDROCARBON IN WUSHI SAG, BEIBU GULF BASIN, SOUTH CHINA SEA

HU Lin; YANG Xibing; XU Xuefeng; FU Dawei; ZHANG Shuai

doi:10.16562/j.cnki.0256-1492.2016.02.014

2016 Vol. 36, No. 2

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Article navigation > Marine Geology & Quaternary Geology > 2016 > 36(2): 121-127

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HU Lin, YANG Xibing, XU Xuefeng, FU Dawei, ZHANG Shuai. MAIN CONTROLLING FACTORS AND ACCUMULATION MODELS OF HYDROCARBON IN WUSHI SAG, BEIBU GULF BASIN, SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2016, 36(2): 121-127. doi: 10.16562/j.cnki.0256-1492.2016.02.014

Citation:

HU Lin, YANG Xibing, XU Xuefeng, FU Dawei, ZHANG Shuai. MAIN CONTROLLING FACTORS AND ACCUMULATION MODELS OF HYDROCARBON IN WUSHI SAG, BEIBU GULF BASIN, SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2016, 36(2): 121-127. doi: 10.16562/j.cnki.0256-1492.2016.02.014

MAIN CONTROLLING FACTORS AND ACCUMULATION MODELS OF HYDROCARBON IN WUSHI SAG, BEIBU GULF BASIN, SOUTH CHINA SEA

Zhanjiang Branch of CNOOC Ltd., Guangdong 524057

Received Date: 25 November 2015

Revised Date: 13 January 2016

Abstract

Abstract

The Wushi sag, characterized by high quality oil-gas source rocks, has excellent hydrocarbon source conditions for oil and gas accumulation. Through analysis of the controlling factors of hydrocarbon accumulation in the sag, the authors put forward two kinds of accumulation models for the different tectonic units of the Wushi sag. Since Paleogene, multiple sets of different types of sandstone reservoir and overlying mudstone have formed as good reservoir-cap assemblages in the Wushi sag on the one hand; and on the other hand, the major fractures controlled the migration-accumulation pattern of generated oil and gas. The deposition of sandstone together with the faulting formed a complex oil and gas transporting system. The long-term different generation of oil and gas controlled distribution of oil and gas in space. As the results, there formed two different hydrocarbon accumulation models:lateral migration and limited vertical adjustment within the source area in the eastern Wushi sag and vertical migration-limited horizontal adjustment near the source area in the central WuShi sag.
- main controlling factors of hydrocarbon accumulation /
- accumulation model /
- Beibuwan basin /
- Wushi sag

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References

[1]	苏厚熙. 乌石凹陷含油气远景[J].海洋地质与第四纪地质,1993,13(1):65-72. Google Scholar [SU Houxi. Petroleum exploration future in Wushi depression[J]. Marine Geology and Quaternary Geology, 1993,13(1):65-72.] Google Scholar
[2]	李丕龙.陆相断陷盆地油气地质与勘探(卷四)[C]//陆相断陷盆地油气成藏组合.北京:石油工业出版社,2003.[LI Peilong, et al. Petroleum Geology and Exploration of Continental Fault Basin[C].Beijing:Petroleum Industry Press,2003.] Google Scholar
[3]	朱伟林,张功成,高乐.南海北部大陆边缘盆地油气地质特征与勘探方向[J].石油学报,2008,29(1):1-9. Google Scholar [ZHU Weilin,ZHANG Gongcheng,GAO Le. Geological characteristics and exploration objectives of hydrocarbons in the northern continental margin basin of South China Sea[J]. Acta Petrolei Sinica,2008,29(1):1-9] Google Scholar
[4]	龚再升,李思田.南海北部大陆边缘盆地油气成藏动力学研究[M]. 北京:科学出版社,2004.[GONG Zaisheng, LI Sitian. Dynamic Research of Oil and Gas Accumulation in Northern Marginal Basins of South China Sea[M].Beijing:Science Press 2004.] Google Scholar
[5]	柳永杰,赵志刚,李建红,等.乌石凹陷成藏组合划分及主控因素分析[J].中国海上油气,2008,20(2):82-86. Google Scholar [LIU Yongjie, ZHAO Zhigang, LI Jianhong, et al. Hydrocarbon play division and major control analysis in Wushi sag, Beibuwan basin[J]. China Offshore Oil and Gas, 2008,20(2):82-86.] Google Scholar
[6]	胡望水,吴婵,梁建设,等. 北部湾盆地构造迁移特征及对油气成藏的影响[J]. 石油与天然气地质,2011,32:920-927.[HU Wangshui, WU Chan, LIANG Jianshe, et al. Tectonic transport characteristics and their influences on hydrocarbon accumulation in Beibuwan Basin[J]. Oil and Gas Geology,2011 Google Scholar ,32:920-927.] Google Scholar
[7]	李春荣,张功成,梁建设,等.北部湾盆地断裂构造特征及其对油气的控制作用[J]. 石油学报, 2012, 33(2):195-203. Google Scholar [LI Chunrong, ZHANG Gongcheng, LIANG Jianshe.et al. Characteristics of fault structure and its control on hydrocarbons in the Beibuwan Basin[J]. Acta Petrolei Sinica, 2012, 33(2):195-203.] Google Scholar
[8]	吴智平,薛雁,颜世永,等. 渤海海域渤东地区断裂体系与盆地结构[J]. 高校地质学报,2013(3):463-471.[WU Zhiping,XUE Yan, YAN Shiyong, et al. The development characteristics of the fault system and basin structures of the Bodong Sag, East China[J]. Geological Journal of China Universities. 2013 Google Scholar (3):463-471.] Google Scholar
[9]	龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-9. Google Scholar [GONG Zaisheng, CAI Dongsheng, ZHANG Gongcheng. Dominating action of Tanlu Fault on hydrocarbon accumulation in eastern Bohai Sea area[J]. Acta Petrolei Sinica,2007,28(4):1-9.] Google Scholar
[10]	雷超,任建业,张静. 南海构造变形分区及成盆过程[J]. 地球科学-中国地质大学学报,2015, 40(4):744-762. Google Scholar [LEI Chao,REN Jianye,ZHANG Jing. Tectonic province divisions in the South China Sea:Implications for basin geodynamics[J]. Editorial Committee of Earth Science-Journal of China University of Geosciences, 2015, 40(4):744-762.] Google Scholar
[11]	马云,李三忠,刘鑫,等. 华南北部湾盆地的形成机制[J]. 吉林大学学报:地球科学版,2014, 44(6):1727-1736. Google Scholar [MA Yun,LI Sanzhong,LIU Xin,et al. Formation mechanism of the Beibuwan Basin, South China[J]. Journal of Jilin University (Earth Science Edition), 2014, 44(6):1727-1736.] Google Scholar
[12]	何登发,赵文智,雷振宇,等.中国叠合型盆地复合含油气系统的基本特征[J].地学前缘,2000,7(3):23-37. Google Scholar [HE Dengfa, ZHAO Wenzhi, LEI Zhenyu, et al. Characteristics of composite petroleum systems of superimposed basins in China[J].Earth in Siences Frowtiers,2000,7(3):23-27.] Google Scholar
[13]	徐新德,张迎朝,黄义文,等.北部湾盆地乌石凹陷流沙港组油页岩发育的主控因素[J]. 石油学报,2013(S2):66-73.[XU Xinde, ZHANG Yingzhao, HUANG Yiwen,et al. Major controlling factors for development of oil shale in Liushagang Formation of Wushi sag, Beibuwan Basin[J]. Acta Petrolei Sinica, 2013 Google Scholar (S2):66-73.] Google Scholar
[14]	孙伟,樊太亮,赵志刚,等. 乌石凹陷古近系层序地层特征及充填演化[J]. 吉林大学学报:地球科学版,2008,38(2):233-239. Google Scholar [SUN Wei,FAN Tailiang,ZHAO Zhigang,et al. Basin filling features and evolution of sequence stratigraphy of Paleogene in Wushi Sag[J]. Journal of Jilin University(Earth Science Edition), 2008, 38(2):233-239.] Google Scholar
[15]	黄保家,黄合庭,吴国瑄,等. 北部湾盆地始新统湖相富有机质页岩特征及成因机制[J]. 石油学报,2012, 33(1):25-31. Google Scholar [HUANG Baojia,HUANG Heting,WU Guoxuan,et al. Geochemical characteristics and formation mechanism of Eocene lacustrine organic-rich shale in the Beibuwan Basin[J]. Acta Petrolei Sinica, 2012, 33(1):25-31.] Google Scholar
[16]	孟令箭,童亨茂,蔡东升,等. 北部湾盆地涠西南凹陷断裂系统成因的砂箱实验研究及启示[J].高校地质学报,2009,15:246-255.[MENG Lingjian, Tong Hengmao, CAI Dongsheng, et al.Sandbox modelling on genetic mechanism of fault system in Weixinan Depression of the Beibu Gulf Basin and its inspiration[J]. Geological Journal of China Universities, 2009 Google Scholar ,15:246-255.] Google Scholar
[17]	袁冰,杨希冰,张迎朝. 源下油气成藏主控因素与成藏模式——以北部湾盆地乌石凹陷乌石17X下始新统流沙港组三段油藏为例[J].科学技术与工程,2014,14(30):23-27. Google Scholar [YUAN bing,YANG Xibing,ZHANG Yingchao. Main controlling factor of hydrocarbon accumulation under source rock and pool-forming pattern a case study of the field of Early Eocene Third Member of Liushagang Formation in Wushi Sag, Beibu Gulf Basin[J]. Science Technology and Engineering, 2014,14(30):23-27.] Google Scholar