惠州凹陷古近系珠海组海相三角洲高分辨率层序地层学研究
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摘要
通过岩心、录井、测井、微体古生物等资料综合研究,识别出惠州凹陷珠海组发育海相三角洲沉积相类型。利用高分辨率层序地层学理论和技术方法,综合测井、地震和岩芯资料对惠州凹陷古近系珠海组地层海相三角洲沉积体系进行高分辨率层序地层学分析,从中识别出短期、中期、长期3个级别的基准面旋回层序,进一步分析短期旋回层序结构,划分出向上"变深"非对称型、向上变浅非对称型、对称型3种基本结构类型。依据等时地层对比法则并利用地震资料约束进行不同级次基准面旋回层序的联井对比,建立了珠海组的等时地层格架,在等时地层格架内进行了单砂体的对比,最后在等时地层格架内分析了储层的时空展布规律。
By the research of core,logging profiles and micropaleontology,marine delta facies of Zhuhai Formation have been recognized in Huizhou Depresion.On the basis of integrating well data and seismic data,combined with the high resolution sequence stratigraphic theory,the marine delta sedimentary system of Zhuhai Formation from Huizhou depression of Pearl River Mouth basin,was divided into short-term,middle-term and long-term base-level cycle.The structure of the short-term base-level cycle could be subdivided into asymmetric up-deepening,asymmetric up-shallowening and symmetric basic structure types.The base-level cycles of different order are correlated in the restriction of seismic interpretations and method of cycle isochrostratigraphy correlation.Isochronous stratigraphic frameworks are established and single sand-body is correlated within them.Finally,the distribution and evolution of reservoir are analyzed within isochronous stratigraphic frameworks.
By the research of core,logging profiles and micropaleontology,marine delta facies of Zhuhai Formation have been recognized in Huizhou Depresion.On the basis of integrating well data and seismic data,combined with the high resolution sequence stratigraphic theory,the marine delta sedimentary system of Zhuhai Formation from Huizhou depression of Pearl River Mouth basin,was divided into short-term,middle-term and long-term base-level cycle.The structure of the short-term base-level cycle could be subdivided into asymmetric up-deepening,asymmetric up-shallowening and symmetric basic structure types.The base-level cycles of different order are correlated in the restriction of seismic interpretations and method of cycle isochrostratigraphy correlation.Isochronous stratigraphic frameworks are established and single sand-body is correlated within them.Finally,the distribution and evolution of reservoir are analyzed within isochronous stratigraphic frameworks.
引文
1邓宏文.美国层序地层研究中的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16⑵:89-97[Deng Hongwen.A new school of thought in sequence stratigraphic studies in USA:high-resolu-tion sequence stratigraphiy[J].Oil&Gas Geology,1995,16(2):89-97]
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3Cross TA.High resolution stratigraphic correlation from the perception of baselevel cycles and sediment accommodation[C]∥Proceeding of Northwestern Europian Sequence Stratigraphy Congress,1994:105-123
4Saylor B Z.Sequence stratigraphy and carbonate-silic clastic mixing in terminal proterozoic foreland basin,urusis formation,Nama Group,Na-mibia[J].Journal of Sedimentary Research,2003,73(2):264-279
5Bergman K M,Walker R G.High-resolution sequence stratigraphy a-nalysis of the Shannon sandstone in Wxoming,using a tempate for re-gional correlation[J].Journal of Sedimentary Research,1995,65(2):255-264
6汪彦,彭军,游李伟,等.中国高分辨率层序地层学的研究现状[J].天然气地球科学,2005,16(3):352-356[Wang Yan,Peng Jun,You Liwei,et al.Current statusof high resolution sequence stratigraphy in China[J].Natural Gas Geoscience,2005,16(3):352-356]
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9郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义[J].沉积学报,2001,19(2):249-255[Zheng Rongcai,Peng Jun,Wu Chaorong.Grade division of base-level cycles of terrigenous basin and its implications[J].Acta Sedimentologica Sinica,2001,19(2):249-255]
10郑荣才,彭军,彭光明,等.高分辨率层序分析在油藏开发工程中的应用[J].沉积学报,2003,21(4):654-655[Zheng Rongcai,Peng Jun,Peng Guangming,et al.Analysis of high-resolution sequence stratigraphy of the second member of Nadu Formation in Lun-35block of Baise Basin and its application in development of oil reservoir[J].Acta Sedimentologica Sinica,2003,21(4):654-655]
11郑荣才,吴朝容,叶茂才.浅谈陆相盆地高分辨率层序地层研究思路[J].成都理工学院学报,2000,27(3):241-244[Zheng Rongcai,Wu Chaorong,Ye Maocai.Research thinking of high-resolution se-quence stratigraphy about a terrigenous basin[J].Journal of Chengdu University of Technology,2000,27(3):241-244]
12邓宏文,王洪亮,李熙喆.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177-184[Deng Hongwen,Wang Hongliang,Li Xizhe.Identification and correlation techniques of sequence stratigraphic base-levels and their application[J].Oil&Gas Geology,1996,17(3):177-184]
13王嗣敏,刘招君.高分辨率层序地层学在陆相地层研究中若干问题的讨论[J].地层学杂志,2004,28(2):179-184[Wang Simin,Liu Zhaojun.Discussion on some problems of high resolution sequence stratigrpahiy in the study of continental stratigraphy[J].Jounarl of Stratigraphy,2004,28(2):179-184]
14周丽清,邵德艳,刘玉刚,等.洪泛面、异旋回、自旋回及油藏范围内小层对比[J].石油勘探与开发,1999,26(6):75-77[Zhou Liqing,Shao Deyang,Liu Yugang,et al.The flooding surfaces,al-locycles,autocycles and their correlation within reservoirs[J].Petro-leum Exploration&Development,1999,26(6):75-77]
15张明禄,郑荣才,达世攀,等.砂体等时对比的高分辨率层序分析技术[J].矿物岩石,2005,24(1):113-118[Zhang Minglu,Zheng Rongcai,Da Shipan,et al.Isochronic correlation of sandybodies by high resolution sequence technique[J].Journal of Mineral Petrology,2005,24(1):113-118]
2Cross T.A stratigraphic architecture,correlation concepts,volumetric portioning,facies differentiation and reservoir compartmentalization from the perspective of high resolution sequence stratigraphy[R].Re-search report of the genetic stratigraphy research group,DGGE,CSM,1994:28-41
3Cross TA.High resolution stratigraphic correlation from the perception of baselevel cycles and sediment accommodation[C]∥Proceeding of Northwestern Europian Sequence Stratigraphy Congress,1994:105-123
4Saylor B Z.Sequence stratigraphy and carbonate-silic clastic mixing in terminal proterozoic foreland basin,urusis formation,Nama Group,Na-mibia[J].Journal of Sedimentary Research,2003,73(2):264-279
5Bergman K M,Walker R G.High-resolution sequence stratigraphy a-nalysis of the Shannon sandstone in Wxoming,using a tempate for re-gional correlation[J].Journal of Sedimentary Research,1995,65(2):255-264
6汪彦,彭军,游李伟,等.中国高分辨率层序地层学的研究现状[J].天然气地球科学,2005,16(3):352-356[Wang Yan,Peng Jun,You Liwei,et al.Current statusof high resolution sequence stratigraphy in China[J].Natural Gas Geoscience,2005,16(3):352-356]
7陈长民.珠江口盆地东部石油地质条件及油气藏形成条件初探[J].中国海上油气(地质),2000,14(2):73-83[Chen Changmin.Petroleum geology and conditions for hydrocarbon accumulation in the eastern Pearl River Mouth Basin[J].China Offshore Oil and Gas(Ge-ology),2000,14(2):73-83]
8陈长民,施和生,许仕策,等.珠江口盆地(东部)第三系油气藏形成条件[M].北京:科学出版社,2003[Chen Changmin,Shi Hesheng,Xu Shice,et al.The Conditions of Hydrocarbon Accumulation of the Tertiary Petroleum System in the Pearl River Mouth Basin[M].Bei-jing:Science Press,2003]
9郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义[J].沉积学报,2001,19(2):249-255[Zheng Rongcai,Peng Jun,Wu Chaorong.Grade division of base-level cycles of terrigenous basin and its implications[J].Acta Sedimentologica Sinica,2001,19(2):249-255]
10郑荣才,彭军,彭光明,等.高分辨率层序分析在油藏开发工程中的应用[J].沉积学报,2003,21(4):654-655[Zheng Rongcai,Peng Jun,Peng Guangming,et al.Analysis of high-resolution sequence stratigraphy of the second member of Nadu Formation in Lun-35block of Baise Basin and its application in development of oil reservoir[J].Acta Sedimentologica Sinica,2003,21(4):654-655]
11郑荣才,吴朝容,叶茂才.浅谈陆相盆地高分辨率层序地层研究思路[J].成都理工学院学报,2000,27(3):241-244[Zheng Rongcai,Wu Chaorong,Ye Maocai.Research thinking of high-resolution se-quence stratigraphy about a terrigenous basin[J].Journal of Chengdu University of Technology,2000,27(3):241-244]
12邓宏文,王洪亮,李熙喆.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177-184[Deng Hongwen,Wang Hongliang,Li Xizhe.Identification and correlation techniques of sequence stratigraphic base-levels and their application[J].Oil&Gas Geology,1996,17(3):177-184]
13王嗣敏,刘招君.高分辨率层序地层学在陆相地层研究中若干问题的讨论[J].地层学杂志,2004,28(2):179-184[Wang Simin,Liu Zhaojun.Discussion on some problems of high resolution sequence stratigrpahiy in the study of continental stratigraphy[J].Jounarl of Stratigraphy,2004,28(2):179-184]
14周丽清,邵德艳,刘玉刚,等.洪泛面、异旋回、自旋回及油藏范围内小层对比[J].石油勘探与开发,1999,26(6):75-77[Zhou Liqing,Shao Deyang,Liu Yugang,et al.The flooding surfaces,al-locycles,autocycles and their correlation within reservoirs[J].Petro-leum Exploration&Development,1999,26(6):75-77]
15张明禄,郑荣才,达世攀,等.砂体等时对比的高分辨率层序分析技术[J].矿物岩石,2005,24(1):113-118[Zhang Minglu,Zheng Rongcai,Da Shipan,et al.Isochronic correlation of sandybodies by high resolution sequence technique[J].Journal of Mineral Petrology,2005,24(1):113-118]
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