收稿日期: 2007-11-20
修回日期: 2008-01-06
网络出版日期: 2008-04-10
基金资助
中国科学院三期院创新项目“南海北部深水海域油气勘探的关键问题研究”(编号：KZCX2-YW-203)；国家重点基础研究发展计划项目研究课题“南海新生代大陆边缘沉积演化模式”（编号：2007CB411703）联合资助.
Tectono-sedimentary Evolution and Petroleum Systemsof the Deepwater Basin along South Atlantic Ocean Margin
Received date: 2007-11-20
Revised date: 2008-01-06
Online published: 2008-04-10
南大西洋两岸的被动大陆边缘盆地是当今深水油气勘探开发的热点区域，其构造沉积作用及含油气条件受控于大西洋的裂开、持续扩张漂移和气候、海平面变化的影响。大西洋边缘盆地的构造演化可以分为前裂谷期、裂谷期、过渡期和漂移期（漂移期又可分为海侵和海退2个时期）；裂谷期发育陆相河流—湖泊—三角洲相沉积体系，过渡期发育阿普第期蒸发盐岩系，漂移期发育海相碳酸盐岩和深水碎屑岩沉积体系。以阿普第期蒸发盐岩系为界，南大西洋深水盆地发育盐下和盐上2套含油气系统，盐下层油气系统烃源岩为湖相泥（页）岩，储层为河流—三角洲相及滨岸相砂岩，盖层为阿普第期蒸发盐岩；盐上层油气系统的主力烃源岩主要是上白垩统海相泥（页）岩，储层以浊积砂岩储层为主，盖层为各个时期发育的泥（页）岩。南大西洋盆地张裂过程的差异性控制了层序发育、蒸发盐岩的分布和含油气潜力。
袁圣强,;吴时国,;马玉波,;付彦辉 . 南大西洋深水盆地的构造沉积演化及含油气系统[J]. 天然气地球科学, 2008 , 19(2) : 216 -221 . DOI: 10.11764/j.issn.1672-1926.2008.02.216
The South Atlantic Margin Basins (SAMB) are the deepwater E&P hot areas of the world, whose tectono\|sedimentary and hydrocarbon conditions are controlled by the rifting and continued drifting of the South Atlantic, the change of weather and the sea level fluctuation. The structure evolution of SAMB can be divided into the prerift, rift, transitional and drift periods, and the drift period can be further divided into the marine transgressive and marine retrogressive periods. The terrestrial river, lacustrine and delta depositional systems were developed in the rift period, the Aptian evaporite rock was developed in the transitional period, and the carbonate and deepwater clastic rock systems were developed in the drift period. The SAMB petroleum systems can be divided into the presalt rift and postsalt drift petroleum systems by the Aptian salt layer, the source rock of the presalt rift petroleum system is lacustrine shale, its reservoir is the river, delta and shoreland sandstone, and the transitional salt is its cap rock; the source rock of the postsalt drift petroleum system is marine shale and the secondary migration of the rift continental source rock, the turbidite is the major revervoir, the cap rock is shale, and the late Cretaceous marine source rock is dominant in this layer. The diverse rifting and drifting of the South Atlantic Ocean controlls the sequence development, evaporates distribution and hydrocarbon potential of the SAMB.
［1］ 吴时国,喻普之.海底构造学导论 [M ]. 北京：科学出版社，2006：106-133.
［2］ 吴时国,袁圣强.世界深水油气勘探进展与我国南海深水油气前景［J］.天然气地球科学,2005,16(6):693-699.
［3］ 何家雄,夏斌,施小斌,等. 世界深水油气勘探进展与南海深水油气勘探前景［J］. 天然气地球科学，2006，17（6）：747-752.
［4］ 杨川恒，杜栩，潘和顺,等.国外深水领域油气勘探新进展及我国南海北部陆坡深水区油气勘探潜力［J］.地学前缘，2000，7（3）:247-256.
［5］ 熊利平,王骏,殷进垠,等. 西非构造演化及其对油气成藏的控制作用 [J ].石油与天然气地质，2005,26（5）：641-645.
［6］ Kate B J,Mello M R.Petroleum systems of South Atlantic Marginal basins-an overview [M ]//Mello M R,Kate B J.Petroleum Systems of South Atlantic Margins: AAPG Memoir Tulsa,Oklahoma,USA:The American Association of Petroleum Geologists,73,2000:1-13.
［7］ Szatmari P.Habitat of petroleum along the South Atlantic Margins [M ]//Mello M R,Kate B J.Petroleum Systems of South Atlantic Margins: AAPG Memoir Tulsa,Oklahoma,USA:The American Association of Petroleum Geologists,73,2000:69-75.
［8］ Michel Seranne,Zahie Anka. South Atlantic continental margins of Africa: A comparison Of the tectonic vs climate interplay on the evolution of equatorial West Africa and SW Africa margins [J ]. Journal of African Earth Sciences, 2005, Article in Press.
［9］ Franks L A,Francis J E.Cretaceous Paleoclimates [M ]. 1997.
［10］ Meters et al. Deep penetrating CMS imaging of the rift drift transition, offshore Dual and North Gabon basin, West Africa,1996.
［11］ Don Ross,Norman Hempstead.Geology, hydrocarbon potential of Rio Muni area, Equatorial Guinea [J ].Oil & Gas Journal,1993,91(35):96-100.
［12］ Roger L L.Mid Cretaceous superplume episode [J ].Scientific American,1995,272(2):82-86.
［13］ Martin P A Jackson,Carlos Cramez,Jean-Michel Fonck. Role of subaerial volcanic rocks and mantle plumes in creation of South Atlantic margins: implications for salt tectonics and source rocks [J ]. Marine and Petroleum Geology, 2000,17:477-498.
［14］ Michael E B, Ronald R C.Geology and Total Petroleum Systems of the West-Central Coastal Province (7203), West Africa Geology [R ].US Geological Survey Bulletin 2207-B.2006:1-60.
［15］ Conterill K,Tari G C,Molnar J,et al. Comparison of depositional sequences and tectonic styles among the West African deepwater frontiers of western Ivory Coast, southern Equatorial Guinea, and northern Namibia [J ]. The Leading Edge,2002,21(11):1103-1111.
［16］ Harris N B,et al. The character and origin of lacustrine source rocks in the Lower Cretaceous synrift section, Congo Basin, West Africa [J ]. AAPG Bulletin,2004,88(8):1163-1184.
［17］ Modica C J,Brush E R.Postrift sequence stratigraphy, paleogeography, and fill history of the deep-water Santos Basin, offshore southeast Brazil [J ].AAPG Bulletin, 88(7):923-945.
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