南黄海盆地北部坳陷白垩系地震相分析
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摘要
在数千公里地震剖面解释基础上,选用频率、振幅、连续性及内部反射结构等4个地震参数,采用“构形+结构+振幅+频率+连续性”的地震相复合命名原则,总结出南黄海盆地北部坳陷白垩系近10种地震相单元,5种沉积相类型。沉积特征分析表明,在没有钻井揭示的白垩系中、下部,其油气潜力有可能比泰州组更加可观,是很好的烃源岩。钻井资料也表明白垩系具有生、聚油过程,这进一步说明白垩系中、下部的生烃潜力。中、新生界的数套物性较好的储、盖层和众多与油气大规模运移时间匹配良好的构造圈闭,使白垩系成为南黄海盆地找油的首要对象。
Based on seismic section explanation of thousands of kilometers,the authors selected 4 seismic parameters(frequency,swing,continuity and inner reflect configuration),adopted multiple nomenclative principle of seismic facies of"figure+configuration+swing+frequency+continuity"and generalized 10 seismic and 5 sedimentary facies for the northern sag of South Yellow Sea Basin. Sedimentary characteristic analysis shows that sedimentation ply thick and acreage amplitude of middle and lower parts of Cretaceous have better hydrocarbon source rock. The oil and gas potential of the middle and lower parts of Cretaceous is more considerable than that of Taizhou Group. The drilling data show that the oil generation and accumulation processes may happen in the Cretaceous strata. There developed several suits of source rocks,physically better reservoir,capping and numerous good trapping structures. Cretaceous strata may be the best target for future exploration in this basin.
Based on seismic section explanation of thousands of kilometers,the authors selected 4 seismic parameters(frequency,swing,continuity and inner reflect configuration),adopted multiple nomenclative principle of seismic facies of"figure+configuration+swing+frequency+continuity"and generalized 10 seismic and 5 sedimentary facies for the northern sag of South Yellow Sea Basin. Sedimentary characteristic analysis shows that sedimentation ply thick and acreage amplitude of middle and lower parts of Cretaceous have better hydrocarbon source rock. The oil and gas potential of the middle and lower parts of Cretaceous is more considerable than that of Taizhou Group. The drilling data show that the oil generation and accumulation processes may happen in the Cretaceous strata. There developed several suits of source rocks,physically better reservoir,capping and numerous good trapping structures. Cretaceous strata may be the best target for future exploration in this basin.
引文
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[8]王英民.地震相分析讲座(一)[J].岩相古地理,1991(2):36-37.W A N G Y ing-m in.Seism ic faciesanalysiscathedra(1)[J].Lithofacies and Paleogeography,1991(2):36-37.
[9]沈守文,彭大钧,颜其彬,等.SB地区西山窑组上部地震相与沉积相分析[J].西南石油学院学报,1999,21(3):32-33.SH EN Shou-w en,PEN G D a-jun,Y A N Q i-bin,etal.Seis-m ic facies and sedim entary characteristic analysis for up-side X ishanyao G roup in the area SB[J].Journal of SouthwestPetroleum college,1999,21(3):32-33.
[10]陶瑞明.泰州组上段—南黄海北部盆地北凹的主要生烃层[J].中国海上油气,1993,17(2):54-60.TA O R ui-m ing.U pper Taizhou G roup is stratigraphic horizons of hydrocarbon generation for the north depres-sionsofthe South Y ellow Sea Basin[J].China Offshore Oiland G as(G eology),1993,17(2):54-60.
[11]李培廉.南黄海的白垩系—一个值得重视的找油领域[J].海洋地质与第四纪地质,1986,16(4):49-52.LIPei-lian.The CretaceousofSouth H uanghaiSea—a po-tentialfrontier oilprospecting[J].M arine G eology&Quaternary G eology,1986,16(4):49-52.
[12]温珍和,张金川.南黄海盆地找油新方向的探讨[J].海洋地质与第四纪地质,1989,19(2):33-36.W EN Zhen-he,ZH A N G Jin-chuan.A discussion about new directions for oil finding in southern Y ellow Sea Basin ofChina[J].M arine Geology&Quaternary G eol-ogy,1989,19(2):33-36.
[13]戴春山,李刚.黄海海域前第三系及油气勘探[J].海洋地质动态,2002,18(11):21-22.D A IChun-shan,LIG ang.Pre-tertiary and oil-gas explo-ration in the Y ellow Sea[J].M arine Geology Letters,2002,18(11):21-22.
[14]陈建文.南黄海盆地油气战略选区[J].海洋地质动态,2002,18(11):28-29.CH EN Jian-w en.O iland gasstratagem precinctin south-ern Y ellow Sea Basin ofC hina[J].M arine Geology Let-ters,2002,18(11):28-29.
[2]蔡乾忠.黄海含油气盆地区域地质与大地构环境[J].海洋地质动态,2002,18(11):8-12.CA IQ ian-zhong.Regionalgeology and geotectonic envi-ronm entofpetroliferous basins in the Y ellow Sea[J].M arine G eology Letters,2002,18(11):8-12.
[3]《中国石油天然气的勘查与发现》编写组.中国石油天然气的勘查与发现[M].北京:地质出版社,1992:150-180.EditorialB oard of Prospecting and D iscovery of O iland G asin China.Prospecting and discovery ofoiland gasin C hina[M].Beijing:G eologicalPublishing H ouse,1992:150-180.
[4]《中国海洋石油物探》编写组.中国海洋石油物探[M].北京:地质出版社,2001:100-112.EditorialBoard ofC hina O ffshore O ilG eophysicalPros-pecting.C hina offshore oilgeophysicalprospecting[M].Beijing:G eologicalPublishing H ouse,2001:100-112.
[5]汪龙文.南黄海的基本构造特征和油气远景[J].海洋地质与第四纪地质,1989,19(3):41-50.W A N G Long-w en.B asic characteristics ofgeology and prospects ofoiland gas production in the South H uanghaiSea Basin[J].M arine Geology&Quaternary G eology,1989,19(3):41-50.
[6]Brow n L F,FisherW L Jr.Seism ic stratigraphic interpreta-tion and petroleum exploration[J].A APG,1980(16):24-28.
[7]徐怀大,王世凤,陈开远.地震地层学解释基础[M].武汉:中国地质大学出版社,1990:86-98.X U H uai-da,W A N G Shi-feng,CH EN K ai-yuan.Seism ic stratigraphic interpretation elem ents[M].W uhan:C hina U niversity ofG eosciencesPress,1990:86-98.
[8]王英民.地震相分析讲座(一)[J].岩相古地理,1991(2):36-37.W A N G Y ing-m in.Seism ic faciesanalysiscathedra(1)[J].Lithofacies and Paleogeography,1991(2):36-37.
[9]沈守文,彭大钧,颜其彬,等.SB地区西山窑组上部地震相与沉积相分析[J].西南石油学院学报,1999,21(3):32-33.SH EN Shou-w en,PEN G D a-jun,Y A N Q i-bin,etal.Seis-m ic facies and sedim entary characteristic analysis for up-side X ishanyao G roup in the area SB[J].Journal of SouthwestPetroleum college,1999,21(3):32-33.
[10]陶瑞明.泰州组上段—南黄海北部盆地北凹的主要生烃层[J].中国海上油气,1993,17(2):54-60.TA O R ui-m ing.U pper Taizhou G roup is stratigraphic horizons of hydrocarbon generation for the north depres-sionsofthe South Y ellow Sea Basin[J].China Offshore Oiland G as(G eology),1993,17(2):54-60.
[11]李培廉.南黄海的白垩系—一个值得重视的找油领域[J].海洋地质与第四纪地质,1986,16(4):49-52.LIPei-lian.The CretaceousofSouth H uanghaiSea—a po-tentialfrontier oilprospecting[J].M arine G eology&Quaternary G eology,1986,16(4):49-52.
[12]温珍和,张金川.南黄海盆地找油新方向的探讨[J].海洋地质与第四纪地质,1989,19(2):33-36.W EN Zhen-he,ZH A N G Jin-chuan.A discussion about new directions for oil finding in southern Y ellow Sea Basin ofChina[J].M arine Geology&Quaternary G eol-ogy,1989,19(2):33-36.
[13]戴春山,李刚.黄海海域前第三系及油气勘探[J].海洋地质动态,2002,18(11):21-22.D A IChun-shan,LIG ang.Pre-tertiary and oil-gas explo-ration in the Y ellow Sea[J].M arine Geology Letters,2002,18(11):21-22.
[14]陈建文.南黄海盆地油气战略选区[J].海洋地质动态,2002,18(11):28-29.CH EN Jian-w en.O iland gasstratagem precinctin south-ern Y ellow Sea Basin ofC hina[J].M arine Geology Let-ters,2002,18(11):28-29.
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