巴西坎普斯盆地油气地质特征与隐蔽油气藏

doi:10.11743/ogg20120506

Abstract

Abstract:

In recent years,Brazil offshore has become one of the hot areas atracting international investments.In order to lower exploration risk,we studied the basic elements of total petroleum system in Campos Basin,including source rocks,reservoir rocks,traps and seals by integrating geophysical prospecting and well data,analyzed four kinds of typical subtle traps discovered in this basin,and proposed that subtle traps have large exploration potentials in this basin.Since the formation of the basin in the Early Cretaceous,it has experienced three evolution stages,including rifting,early drifting and late drifting stages,and developed three megasequences of non-marine,transitional and marine facies respectively.Three sets of source rocks possibly occur in the strata from the Lower Cretaceous to the Neogene in Campos Basin and the most important source rocks is the Lower Cretaceous Lagoa Feia Formation,from which all the discovered oil/gas in the basin were sourced.Various oil/gas reservoirs have been discovered in all the formations from the Lower Cretaceous to the Miocene,including fractured basalt in the basement,bioclastics in the Lagoa Feia Formation,carbonates in the Maca? Formation,clastic reservoirs and marine turbidites in the Upper Cretaceous-Oligocene.Subtle traps are very important in the basin and are dominated by stratigraphic traps including overlap traps,buried-hill traps and unconformity traps.More attention should be paid to the exploration of subtle traps,especially lithologic traps and fractured subtle traps.

Key words: subtle trap, exploration potential, petroleum geology, Campos Basin, Brazil

CLC Number:

TE121

Zhang Shen, Guo Li, Lin Weidong. Petroleum geology and subtle traps in Campos Basin, Brazil offshore[J]. Oil & Gas Geology, 2012, 33(5): 705-712.

References

[1] Mohriak W U,Mello M R,Dewey J F,et al.Petroleum geology of the Campos Basin,offshore Brazil[C]//Geological Society of London,Special Publication,50.London:Geological Society Publishing House,1990:119-141.
[2] Mello M R,Gaglianone P C,Brassell S C,et al.Geochemical and biological marker assessment of depositional environments using Brazilian offshore oils[J].Marine and Petroleum Geology,1988,5 (3):205-221.
[3] Trindade L A F,Soldan A L,Cerqueira J R,et al. Petroleum generation,migration,and accumulation in deep water area of Campos Basin,Brazil[C]// Bulletin American Association of Petroleum Geologists,74 (5),Tulsa:American Association of Petroleum Geologists,1990:781.
[4] Mello M R,Koutsoukos E A M,Mohriak W U,et al.Selected petroleum systems in Brazil[C]// The petroleum system-from source to trap,Memoir American Association of Petroleum Geologists,60,Chapt.31,Tulsa:American Association of Petroleum Geologists,1994:499-512.
[5] Guardado L R,Spadini A R,Brandao J S L,et al.Petroleum system of the Campos Basin,Brazil[C]// Petroleum Systems of South Atlantic Margins,Memoir American Association of Petroleum Geologists,73,2000:317-324.
[6] Peters K E,Walters C C,Moldowan,J M.The Biomarker Guide[M].Cambridge,United Kingdom:Cambridge University Press,2007:1-1155.
[7] Tessari E,Tsubone K,Brisola N.Petroleum bearing deposits in the Campos Basin[C]// Proceedings Offshore Brazil 78 Conference,Paper OB-78.05,1978:5-14.
[8] 李丕龙,庞雄奇. 陆相断陷盆地隐蔽油气藏形成-以济阳坳陷为例[M].北京:石油工业出版社,2004:1-426. Li Pilong,Pang Xiongqi.The formation of subtle traps in continental rifted basin:taking Jiyang depression as an example[M].Beijing:Peotroleum Industry Press,2004:1-426.
[9] Martins C C,Guardado L R,Moreira J L P,Esteves F R,Andrade V F,Freitas L C da S,Soares C M.Campos de Barracuda Caratinga e adjacencias novo polo exploratorio e de producao na Bacia de Campos[C]//Congresso Brasileiro de Petroleoe Conexpo ARPEL 94,1994:1-10.
[10] 杨俊,姜振学,向才富,等.塔里木盆地塔中83-塔中16井区碳酸盐岩油气特征及其成因机理[J].石油与天然气地质,2012,33(1):101-110. Yang Jun,Jiang Zhenxue,Xiang Caifu,et al.Carbonate reservoir characterstics and their genetic mechaninms in Tazhong 83-Tazhong 16 wellblock,Tarim Basin[J].Oil & Gas Geology.2012,33(1):101-110.
[11] Guardado L R,Gamboa L A P,Lucchesi C F.Petroleum geology of the Campos Basin,Brazil,a model for a producing Atlantic type Basin[C]// Divergent/passive margin basins,Memoir American Association of Petroleum Geologists,48,Tulsa:American Association of Petroleum Geologists,1989:3-79.
[12] Bacoccoli G,Morales R G,Campos O A J.The Namorado oil field:a major oil discovery in the Campos Basin,Brazil[C]// Memoir American Association of Petroleum Geologists,30,Tulsa:American Association of Petroleum Geologists,1980:329-338.

[1]	Wensong Huang, Fang Xu, Chengbin Liu, Jixin Huang, Junfeng Zhao, Songwei Guo, Yunbo Li. Seismic prediction of fractures and vugs in deep-water sub-salt lacustrine carbonates：Taking F oilfield in Santos Basin， Brazil as an example [J]. Oil & Gas Geology, 2022, 43(2): 445-455.
[2]	Deyu Gong, Changyong Zhao, Wenjun He, Long Zhao, Yumei Kong, Liya Ma, Ruiju Wang, Wei’an Wu. Genetic types and exploration potential of natural gas at northwestern margin of Junggar Basin [J]. Oil & Gas Geology, 2022, 43(1): 161-174.
[3]	Mingshui Song, Yongshi Wang, Xuefeng Hao, Tianxia An. Petroleum systems and exploration potential in deep Paleogene of the Dongying Sag, Bohai Bay Basin [J]. Oil & Gas Geology, 2021, 42(6): 1243-1254.
[4]	Bojiang Fan, Yue Jin, Liang Shi, Yating Li, Weichang Chen. Shale oil exploration potential in central Ordos Basin: A case study of Chang 7 lacustrine shale [J]. Oil & Gas Geology, 2021, 42(5): 1078-1088.
[5]	Quansheng Cai, Xiaohong Chen, Guotao Zhang, Baomin Zhang, Jing Han, Lin Chen, Peijun Li, Yangui Li. Characteristics and exploration potential of the Wufeng-Longmaxi shale gas reservoirs of Lower Paleozoic in Yichang area, western Hubei Province, China [J]. Oil & Gas Geology, 2021, 42(1): 107-123.
[6]	Chen Zhipeng, Ren Zhanli, Cui Junping, Qi Kai, Zhang Yuanyuan, Yu Chunyong, Ren Wenbo, Yang Guiling, Liu Runchuan. Age and petroleum geological implications of prolific formations in Ha'ri Depression Well YHC1,Yin'e Basin [J]. Oil & Gas Geology, 2019, 40(2): 354-368.
[7]	Qian Xing, Zhang Li, Yi Hai, Wei Zhenquan, Lei Zhenyu, Luo Shuaibing. Key Cenozoic tectonic transformation in Jiulongjiang Sag,Taiwan Strait Basin and its petroleum geologic significance [J]. Oil & Gas Geology, 2019, 40(1): 162-169.
[8]	Liu Shilin, Zhang Zhongpei, Yun Jinbiao, Li Huili, Gao Shanlin, Li Jianjiao. NE-trending fault belts in Tanggubasi Depression of the Tarim Basin: Features,genetic mechanism,and petroleum geological significance [J]. Oil & Gas Geology, 2018, 39(5): 964-975.
[9]	Tian Naxin, Yin Jinyin, Tao Chongzhi, Kong Fanjun. Petroleum geology and resources assessment of major basins in Middle East and Central Asia [J]. Oil & Gas Geology, 2017, 38(3): 582-591.
[10]	Liu Guangxiang, Jin Zhijun, Deng Mo, Zhai Changbo, Guan Honglin, Zhang Changjiang. Exploration potential for shale gas in the Upper Permian Longtan Formation in eastern Sichuan Basin [J]. Oil & Gas Geology, 2015, 36(3): 481-487.
[11]	Wang Xinwei, Meng Qingqiang, Wu Changwu, Tao Ye, Guo Yongqiang, Zhang Yunxia. Rift system and its controlling effects upon pre-salt hydrocarbon accumulation in Great Campos Basin, Brazil [J]. Oil & Gas Geology, 2015, 36(2): 193-202.
[12]	Liu Yaming, Xie Yinfu, Ma Zhongzhen, Zhou Yubing, Wang Dandan. Heavy oil accumulation characteristics of the Orinoco heavy oil belt [J]. Oil & Gas Geology, 2013, 34(3): 315-322.
[13]	Xiong Liping, Li Jun, Wu Changwu, Li Songyang. Tectonic evolution and hydrocarbon accumulation in the Solimoes Basin,Brazil [J]. Oil & Gas Geology, 2013, 34(3): 363-369.
[14]	Lin Huixi, Peng Suping, Du Wenfeng, Kong Xiangxing. Hydrocarbon accumulation conditions and prospecting potentials of carbonate rocks in the Upper Es⁴ of Bonan Sag [J]. Oil & Gas Geology, 2013, 34(2): 161-166.
[15]	Tang Yu. Characterization of the sedimentation of the Leikoupo Formation and the weathering crust reservoirs at the top of the formation in the western Sichuan Basin [J]. Oil & Gas Geology, 2013, 34(1): 42-47.

Petroleum geology and subtle traps in Campos Basin, Brazil offshore

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics