天然气地质学

南大西洋深水油气分布特征、聚集规律与勘探方向

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  • (中国石油勘探开发研究院,北京 100083)
秦雁群(1982),男,安徽巢湖人,工程师,博士,主要从事海外及深水油气勘探研究. Email:yqqin@petrochina.com.cn.

收稿日期: 2015-04-22

  修回日期: 2015-07-13

  网络出版日期: 2016-02-10

基金资助

国家科技重大专项(编号:2011ZX05028);中国石油天然气股份公司专项(编号:2013E0501)联合资助.

Distribution characteristics,accumulation rules and exploration directions of deep water hydrocarbon in South Atlantic

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  • (PetroChina Research Institute of Petroleum Exploration & Development,Beijing 100083,China)

Received date: 2015-04-22

  Revised date: 2015-07-13

  Online published: 2016-02-10

摘要

南大西洋是全球深水油气勘探热点地区,深水油气资源丰富。基于国际商业数据库油气田数据统计与滨岸盆地成盆规律,分析表明:南大西洋深水油气平面上主要分布于六大盆地内、走向上以中段富含盐岩盆地为主、横向上伸展带发现居多、纵向上储集在过渡期碳酸盐岩和漂移期浊积岩内,可以利用共轭特征类比进行被动陆缘深水油气勘探。结合盆地资料与区域地质认识,梳理了南大西洋深水油气聚集规律:①深水油气形成于含高塑性体伸展与挤压和不含高塑性体开阔环境三大构造背景;②含有裂谷期湖相泥岩、漂移早期和漂移中晚期海相页岩3套有效烃源岩;③发育盐上三角洲与浊积碎屑岩、盐下潟湖相碳酸盐岩2套优质储层;④拥有厚层盐岩和海相页岩2种类型区域性盖层;⑤富含构造—地层、构造等多种成因圈闭类型;⑥深水油气经断裂短距离运移,紧邻生烃中心聚集;⑦形成上白垩统、下白垩统和新生界3套重要深水成藏组合;⑧深水油气晚期成藏,以构造—地层、构造油气藏类型为主。通过建立不同类型盆地深水油气成藏模式,指出不同构造段深水勘探重点方向:北段上白垩统近岸叠覆型深水扇、赤道段古近系—新近系斜坡水道及深水逆冲带前缘、中段伸展带盐上浊积岩和底辟—逆冲带盐下碳酸盐岩、南段上白垩统与断块相关斜坡水道。

本文引用格式

秦雁群,张光亚,梁英波,温志新,王兆明,张磊,巴丹,汪永华 . 南大西洋深水油气分布特征、聚集规律与勘探方向[J]. 天然气地球科学, 2016 , 27(2) : 229 -240 . DOI: 10.11764/j.issn.16721926.2016.02.0229

Abstract

South Atlantic is one of the world deep water hydrocarbon exploration hotspots and is enriched in deep water resources.Based on oilgas fields data of international commercial databases statistical analysis and formation rules of coastal basins,it can be seen that deep water hydrocarbon of South Atlantic were distributed mainly in six basins in plane.To specify,they mainly located in rich salt basins in the middle section along strike direction,found more on extensional zone along transverse direction,accumulated in carbonate of transitional period and turbidite of drift period vertically.It is effective to utilize conjugate features analogy to explore deep water hydrocarbon in passive margin.Combining basin data and regional geological knowledge,this paper summarizes the following rules of deep water hydrocarbon accumulation in South Atlantic.(1)Deep water hydrocarbon were formed in three tectonic settings,which are extensional and compressional environments in containedhigh plastic body area,and open environment in nonhigh plastic body area.(2)Three sets of effective source rocks are inclusive,they are lacustrine mudstone in rifting period,marine shale in early and middlelate drift period.(3)Two sets of high quality reservoirs were formed,clastic rocks of delta and turbidite in postsalt and carbonate of lagoon facies in presalt.(4)Two types of regional thick cap rocks were owned,salt and marine shale.(5)A variety of genesis trap types were contained,such as structuralstratigraphic trap,structural trap,etc.(6)Deep water hydrocarbon migrated through fault in short distances and accumulated closely to hydrocarbon generation center.(7)Three sets of important deep water plays were formed,including Upper Cretaceous,Lower Cretaceous and Cenozoic.(8)Deep water hydrocarbon was generally accumulated in late period and was mainly formed in structuralstratigraphic and structural reservoir.According to the established different types of deep water hydrocarbon accumulation patterns,deep water hydrocarbon exploration directions with different structural sections were pointed out.It  suggested concentration on proximal superimposed deep water fans of Upper Cretaceous in the north section,slope channels and thrust front of Tertiary in the equator section,postsalt turbidite of extensional zone and presalt carbonate of diaperthrust zone in the middle section,as well as slope channels associated with fault block of Upper Cretaceous in the south section.

参考文献

[1]Weimer P,Slatt R.Introduction to the Petroleum Geology of Deepwater Settings[M].AAPG Studies in Geology 57.Tulsa:AAPG/Datapages,2007:1816.
[2]Zou Caineng,Zhai Guangming,Zhang Guangya,et al.Formation,distribution,potential and prediction of global conventional and unconventional hydrocarbon resources[J].Petroleum Exploration and Development,2015,42(1):1325.[邹才能,翟光明,张光亚,等.全球常规—非常规油气形成分布、资源潜力及趋势预测[J].石油勘探与开发,2015,42(1):1325.][JP]
[3]Zhao Zhe,Zhang Guangya,Liang Tao,et al.New exploration discovery and development trend of oil/gas exploration around the world[J].Natural Gas Geoscience,2012,23(1):3944.[赵喆,张光亚,梁涛,等.2012年世界油气勘探新发现及发展趋势[J].天然气地球科学,2012,23(1):3944.]
[4]Zhao Jidong,Zheng Junwei.Development status and trends of science and technology of deepwater oil and gas[J].Natural Gas Geoscience,2013,24(4):741746.[赵纪东,郑军卫.深水油气科技发展现状与趋势[J].天然气地球科学,2013,24(4):741746.][JP]
[5]Woodnac.Wood Mackenzie[EB/OL].http://www.woodmac.com/public/home.(20150105)[20150120].
[6]Pettingill H.Worlwide deepwater exploration and production[J].The Leading Edge,2002,21(4):371376.
[7]Weimer P,Pettingill H.Global overview of deepwater exploration and production[C]//Nilsen T,Shew R,Steffens G,et al.Atlas of DeepWater Outcrops.AAPG Studies in Geology 56.Tulsa:AAPG/Datapages,2007:711.
[8]Qin Yanqun,Zhang Guangya,Liang Yingbo,et al.Research methods of lowdegree exploration in the deep water hydrocarbon accumulation of passive margin:Case study on deep water oil and gas prospecting exploration of  Potiguar Basin in the Equatorial Atlantic[J].Earth Science Frontiers,2014,21(3):187194.[秦雁群,张光亚,梁英波,等.低勘探程度被动陆缘深水油气聚集研究方法:以赤道大西洋波蒂瓜尔盆地深水油气远景勘探为例[J].地学前缘,2014,21(3):187194.]
[9]Dailly P,Henderson T,Hudgens E,et al.Exploration for cretaceous stratigraphic traps in the gulf of Guinea,West Africa and the discovery of the Jubilee Field:A play opening discovery in the Tano Basin,offshore Ghana[C]//Mohriak W,Danforth A,Post P,et al.Conjugate Divergent Margins.London:Geological Society Special Publications 369,2013:235248.
[10]Zhang Guangya,Wen Zhixin,Liang Yingbo,et al.Tectonicsedimentary features and petroleum accumulation in the passive continental margin basins of south Atlantic peripheries[J].Earth Science Frontiers,2014,21(3):1825.[张光亚,温志新,梁英波,等.全球被动陆缘盆地构造沉积特征与油气成藏——以南大西洋周缘盆地为例[J].地学前缘,2014,21(3):1825.][JP]
[11]Fabio L,Lorenzo M,Paolo A.West Africa presalt exploration:background and perspective of the West African “Tupi” myth[C]//Rosen N,Weimer P,Anjos S,et al.New Understanding of the Petroleum Systems of Continental Margins of the World.32nd Annual GCSSEPM Foundation Bob F.Perkins Research Conference,Houston,Texas,2012:460493.
[12]Joan F.Context,challenges,and future of deepwater plays:An overview[C]//Rosen N,Weimer P,Anjos S,et al.New Understanding of the Petroleum Systems of Continental Margins of the World.32nd Annual GCSSEPM Foundation Bob F.Perkins Research Conference,Houston,Texas,2012:181220.
[13]Beglinger S,Doust H,Cloetingh S.Relating petroleum system and play development to basin evolution:Brazilian South Atlantic margin[J].Petroleum Geoscience,2012,18(3):315336.
[14]Beglinger S,Doust H,Cloetingh S.Relating petroleum system and play development to basin evolution:West African South Atlantic basins[J].Marine and Petroleum Geology,2012,30(1):125.
[15]Cameron N,Bate R,Clure V,et al.Oil and gas habitats of the South Atlantic:Introduction[C]//Cameron N,Bate R,Clure V.The Oil and Gas Habitats of  the South Atlantic.London:Geological Society Special Publications 153,1999:19.
[16]IHS Energy.Edin[EB/OL].http://www.ihsenergy.com.(20141220)[20150120].
[17]Tellus.Tellus Data[EB/OL].http://www.fugrorobertson.com/products/tellusFRL.(20141228)[20150125].
[18]Moulin M,Aslanian D,Unternehr P.A new starting point for the South and Equatorial Atlantic Ocean[J].Earth:Science Reviews,2010,98(1/2):137.
[19][KG*4/5]Dickson W,Frvklund R,Odegard M,et al.Constraints for plate reconstruction using gravity dataimplications for source and reservoir distribution in Brazilian and West African margin basins[J].Marine and Petroleum Geology,2003,20(3/4):309322.[JP]
[20]Mohriak W,Fainstein R.Phanerozoic regional geology of the eastern Brazilian margin[C]//Roberts D,Bally A.Regional Geology and Tectonics:Phanerozoic Passive Margins,Cratonic Basins and Global Tectonic Maps.Amsterdam:Elsevier,2012:223282.
[21]Sapin F,Ringenbach J,Rives T,et al.Counterregional normal faults in shaledominated deltas:Origin,mechanism and evolution[J].Marine and Petroleum Geology,2012,37(1):121128.
[22]Mohriak W,Danforth A,Post P,et al.Conjugate divergent margins:An introduction[C]//Mohriak W,Danforth A,Post P,et al.Conjugate Divergent Margins.London:Geological Society Special Publications 369,2013:19.
[23]Cartwright,Swart,Corner.Conjugate margins of the south Atlantic:NamibiaPelotas[C]//Roberts,Bally.Regional Geology and Tectonics:Phanerozoic Passive Margins,Cratonic Basins and Global Tectonic Maps.Amsterdam:Elsevier,2012:203221.[JP]
[24]Rowan M.Passivemargin salt basins:hyperextension,evaporate deposition,and salt tectonics[J].Basin Research,2014,26(1):154182.
[25]Morley C,King R,Hillis R,et al.Deepwater fold and thrust belt classification,tectonics,structure and hydrocarbon prospectivity:A  review[J].Earth Science Review,2011,104(13):4191
[26]Qin Yanqun,Wen Zhixin,Wang Zhaoming,et al.Sedimentary characteristics,model and hydrocarbon accumulation of deep water presal carbonate rocks in South Atlantic[J].Earth Science Frontiers,2014,21(3):127133.[秦雁群,温志新,王兆明,等.南大西洋深水盐下碳酸盐岩沉积特征、模式及油气成藏[J].地学前缘,2014,21(3):127133.]
[27]Torsvik T,Rousse S,Labails C,et al.A new scheme for the opening of the South Atlantic Ocean and the dissection of an Aptian salt basin[J].Geophysical Journal International,2009,177(3):13151333.
[28]Hudec M,Jackson M.Terra infirma:understanding salt tectonics[J].Earth:Science Reviews,2007,82(1/2):128.
[29]Liu Zuodong,Li Jianghai.Control of salt structures on hydrocarbons in the passive continental margin of West  Africa[J].Petroleum Exploration and Development,2011,38(2):196202.[刘祚冬,李江海.西非被动大陆边缘盆地盐构造对油气的控制作用[J].石油勘探与开发,2011,38(2):196202.]
[30]Tong Xiaoguang.A discussion on the role of accumulation association in the exploration evaluation[J].Journal of Southwest Petroleum University:Science & Technology Edition,2009,31(6):18.[童晓光.论成藏组合在勘探评价中的意义[J].西南石油大学学报:自然科学版,2009,31(6):18.]
[31]Pattier F,Loncke L,Gaullier V,et al.Masstransport deposits and fluid venting in a transform margin setting,the Eastern Demerara Plateau(French Guiana)[J].Marine and Petroleum Geology,2013,46(7):287303.
[32]Brun J,Fort X.Salt tectonics at passive margins:Geology versus models[J].Marine and Petroleum Geology,2011,28(6):11231145.
[33]Modica C,Brush E.Postrift sequence stratigraphy,paleogeography,and fill history of the deepwater Santos Basin,offshore southeast Brazil[J].AAPG Bulletin,2004,88(7):923945.[JP]
[34]Antobreh A,Faleide J,Tsikalas F,et al.Riftshear architecture and tectonic development of the Ghana margin[C]//Roberts D,Bally A.Regional Geology and Tectonics:Phanerozoic Passive Margins,Cratonic Basins and Global Tectonic Maps.Amsterdam:Elsevier,2012:567615.
[35]Wilson P,Turner J,Westbrook G.Structural architecture of the oceancontinent boundary at an oblique transform margin through deepimaging seismic interpretation and gravity modelling:Equatorial Guinea,West Africa[J].Tectonophysics,2003,374(1/2):1940.
[36]Macgregor D,Robinson J,Spear G.Play fairways of the Gulf of Guinea transform margin[C]//Arthur T,Macgregor D,Cameron N.Petroleum Geology of Africa:New Themes and Developing Technologies.London:Geological Society Special Publications 207,2003:131150.
[37]Bonne K.Reconstruction of the evolution of the Niger River and implications for sediment supply to the Equatorial Atlantic margin of Africa during the Cretaceous and the Cenozoic[C]//Scott R,Smyth H,Morton,et al.Sediment Provenance Studies in Hydrocarbon Exploration and Production.London:Geological Society Special Publications 386,2014:327349.
[38]Morgan R.Prospectivity in ultradeep water:The case for petroleum generation and migration within the outer parts of the Niger Delta apron[C]//Arthur T,Macgregor D,Cameron N.Petroleum Geology of Africa:New Themes and Developing Technologies.London:Geological Society Special Publications 207,2003:151164.
[39]Briggs S,Davies R,Cartwright J,et al.Multiple detachment levels and their control on fold styles in the compressional domain of the deepwater west Niger delta[J].Basin Research,2006,18(4):435450.
[40]Trai G,Molnar J,Ashton P.Examples of salt tectonics from West Africa:A comparative approach[C]//Arthur T,Macgregor [JP]D,Cameron N.Petroleum Geology of Africa:New Themes and Developing Technologies.London:Geological Society Special Publications 207,2003:85104.
[41]Jackson M,Cramez C,Fonck J.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(4):477498.

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