湖相微生物碳酸盐岩沉积相模式研究——以桑托斯盆地A油田为例
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摘要
基于桑托斯盆地A油田常规岩心、井壁取心、薄片、测井、三维地震等资料,分析研究区的微相类型、微相组合,建立相模式。研究表明,研究区存在湖相微生物碳酸盐岩、颗粒碳酸盐岩、结晶碳酸盐岩3大碳酸盐岩类,识别出叠层石、砾屑灰岩、结晶灰岩等11种微相类型。在此基础上,依据岩性叠置关系,将其分为微生物丘、背风坡丘后、迎风坡丘前、颗粒滩4种微相组合,最终建立湖相微生物碳酸盐岩沉积相模式。
A Oilfield was taken as an example in this paper and based on the data of cores,borehole corings,logging,3D seismic,the types of microfacies,microfacies association were analyzed and the faceis model was established. It can be found that there are three types of rock in the study area,which are microbial carbonates,grain carbonates,and Crystalline carbonates. The former three types of rock were composited by 11 microfacies. It contains stromatolite,rudstone,dolostone et al. On the basis of the above work,four microfacies association were identified by the relationship of lithology combination,and that are microbial mound,back microbial mound of leeward,fore-microbial mound of windward,shoal. Finally,facies model of lacustrine microbial carbonates was established.
A Oilfield was taken as an example in this paper and based on the data of cores,borehole corings,logging,3D seismic,the types of microfacies,microfacies association were analyzed and the faceis model was established. It can be found that there are three types of rock in the study area,which are microbial carbonates,grain carbonates,and Crystalline carbonates. The former three types of rock were composited by 11 microfacies. It contains stromatolite,rudstone,dolostone et al. On the basis of the above work,four microfacies association were identified by the relationship of lithology combination,and that are microbial mound,back microbial mound of leeward,fore-microbial mound of windward,shoal. Finally,facies model of lacustrine microbial carbonates was established.
引文
[1]常玉光,齐永安,郑伟,等.叠层石微生物席生态系研究进展[J].吉林大学学报(地球科学版),2013,32(3):356-364.
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[13]熊利平,邬长武,郭永强,等.巴西海上坎波斯与桑托斯盆地油气成藏特征对比研究[J].石油实验地质,2013,35(4):419-425.
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[16]马安来,黎玉战,张玺科,等.桑托斯盆地盐下J油气田CO2成因、烷烃气地球化学特征及成藏模式[J].中国海上油气,2015,27(5):13-20.
[17]RIDING R.Microbial carbonates:the geological record of calcified bacterial-algal mats and biofilms[J].Sedimentology,2000,47(1):179-214.
[18]BAHNIUK A M,ANJOS S,FRANCA A B,et al.Development of microbial carbonates in the Lower Cretaceous Codo Formation(north-east Brazil):Implications for interpretation of microbialite facies associations and palaeoenvironmental conditions[J].Sedimentology,2015,62:155-181.
[19]LONGMAN M W.Carbonate diagenetic texture from nearsurface diagenetic environments[J].AAPG Bulletin,1980,64:461-487.
[20]SARG J F,TANAVSUU-MILKEVICIENE K,HUMPHREY J D.Lithofacies,stable isotopic composition,and stratigraphic evolution of microbial and associated carbonates,Green River Formation(Eocene),Piceance Basin,Colorado[J].AAPG Bulletin,2013,97(11):1937-1966.
[21]DUNHAM R J.Classification of carbonate rocks according to depositional texture[C]∥HAM W E.Classification of carbonate rocks.Tulsa:AAPG,1962:108-121.
[2]马中振,谢寅符,耿长波,等.巴西坎波斯(Campos)盆地石油地质特征与勘探有利区分析[J].吉林大学学报(地球科学版),2011,41(5):1389-1396.
[3]马中振.典型大西洋型深水盆地油气地质特征及勘探潜力:以巴西桑托斯盆地为例[J].中南大学学报(自然科学版),2013,44(3):1389-1396.
[4]刘深艳,胡孝林,李进波.巴西桑托斯盆地盐下大发现及其勘探意义[J].中国石油勘探,2010,(4):74-81.
[5]MOULIN M,ASLANIAN D,Unternehr.A new starting point for the South and Equatorial Atlantic Ocean[J].Earth-Science Reviews,2010,98:1-37.
[6]STANTON N,PONTE-NETO C,BIJANI R,et al.A geophysical view of the Southeastern Brazilian margin at Santos Basin:Insights into rifting evolution[J].Journal of South American Earth Sciences,2014,55:141-154.
[7]TERRA G J S,SPADINI A R,FRANCA,A B,et al.Carbonate rock classification applied to Brazilian sedimentary basins[J].Boletin de Geocie^ncias da Petrobras,Rio de Janeiro,2010,18,9-29.
[8]REZENDA M F,POPE M C.Importance of depositional texture in pore characterization of subsalt microbialite carbonates,offshore Brazil[C]∥BOSENCE D W J,GIBBONS K A,LE HERON D P,et al.Microbial Carbonates in Space and Time:Implications for Global Exploration and Production.London:The Geological Society,2015:193-207.
[9]WRIGHT P V,BARNETT A J.An abiotic model for the development of textures in some South Altantic early Cretaceous lacustrine carbonates[C]∥BOSENCE D W J,GIBBONS K A,LE HERON D P,et al.Microbial Carbonates in Space and Time:Implications for Global Exploration and Production.London:The Geological Society,2015:209-219.
[10]梁英波,张光亚,刘祚冬,等.巴西坎普斯—桑托斯盆地油气差异富集规律[J].海洋地质前沿,2011,27(12):55-62.
[11]陶崇智,邓超,白国平,等.巴西坎波斯盆地和桑托斯盆地油气分布差异及主控因素[J].吉林大学学报(地球科学版),2013,43(6):1753-1761.
[12]汪新伟,邬长武,郭永强,等.巴西桑托斯盆地卢拉油田成藏特征及对盐下勘探的启迪[J].中国石油勘探,2013,18(3):61-69.
[13]熊利平,邬长武,郭永强,等.巴西海上坎波斯与桑托斯盆地油气成藏特征对比研究[J].石油实验地质,2013,35(4):419-425.
[14]SZATMARI P.Habitat of petroleum along the south Atlantic margins[C]∥MELLO M R,KATZ B J.Petroleum systems of south Atlantic margins.Tulsa:AAPG,2009:69-75.
[15]BRYANT I,HERBST N,DAILLY P,et al.Basin to basin:Plate tectonic in exploration[J].Oilfield review Autumn,2012:24(3)1-20.
[16]马安来,黎玉战,张玺科,等.桑托斯盆地盐下J油气田CO2成因、烷烃气地球化学特征及成藏模式[J].中国海上油气,2015,27(5):13-20.
[17]RIDING R.Microbial carbonates:the geological record of calcified bacterial-algal mats and biofilms[J].Sedimentology,2000,47(1):179-214.
[18]BAHNIUK A M,ANJOS S,FRANCA A B,et al.Development of microbial carbonates in the Lower Cretaceous Codo Formation(north-east Brazil):Implications for interpretation of microbialite facies associations and palaeoenvironmental conditions[J].Sedimentology,2015,62:155-181.
[19]LONGMAN M W.Carbonate diagenetic texture from nearsurface diagenetic environments[J].AAPG Bulletin,1980,64:461-487.
[20]SARG J F,TANAVSUU-MILKEVICIENE K,HUMPHREY J D.Lithofacies,stable isotopic composition,and stratigraphic evolution of microbial and associated carbonates,Green River Formation(Eocene),Piceance Basin,Colorado[J].AAPG Bulletin,2013,97(11):1937-1966.
[21]DUNHAM R J.Classification of carbonate rocks according to depositional texture[C]∥HAM W E.Classification of carbonate rocks.Tulsa:AAPG,1962:108-121.