印度尼西亚NEB气田Lumut亚段高分辨率层序-岩相古地理
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摘要
利用高分辨率层序地层学理论和技术方法,综合岩心、地震和测井小波资料,对印度尼西亚南苏门答腊盆地Jabung区块NEB气田Lower Talang Akar段Lumut亚段地层进行高分辨率层序地层学研究,从中识别出长、中、短3个级别基准面旋回,以各中期层序的上升和下降相域为编图单元,讨论Lumut亚段高MSC1～MSC3中期层序上升、下降半旋回相域的岩相古地理特征。
Based on integrating well wavelet and seismic data,in combination with high resolution sequence stratigraphic theory and techniques,the marine delta sedimentary system of Lower Talang Akar Formation in NEB Gas Field of Jabung Block in the South Sumatra Basin was divided into short-term,middle-term and long-term base-level cycles.The base-level cycles of different orders are correlated with the restriction of seismic interpretation and method of cycle isochrostratigraphy correlation.The ascending and descending half-cycle facies tracts of each middle-term sequence system are taken as the mapping unit,the lithofacies paleographic characteristics of each ascending and descending half-cycle facies tract of MSC1-MSC3 are plotted and discussed.
Based on integrating well wavelet and seismic data,in combination with high resolution sequence stratigraphic theory and techniques,the marine delta sedimentary system of Lower Talang Akar Formation in NEB Gas Field of Jabung Block in the South Sumatra Basin was divided into short-term,middle-term and long-term base-level cycles.The base-level cycles of different orders are correlated with the restriction of seismic interpretation and method of cycle isochrostratigraphy correlation.The ascending and descending half-cycle facies tracts of each middle-term sequence system are taken as the mapping unit,the lithofacies paleographic characteristics of each ascending and descending half-cycle facies tract of MSC1-MSC3 are plotted and discussed.
引文
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[2]Cross T.A Stratigraphic Architecture、Correlation Concepts、Volumetric Partioning、Facies Differention and Reservoir Compartmen-talization from the Perspective of High Resolution Sequence Stratigraphy[A].Research Report of the Genetic Stratigraphy ResearchGroup,DGGE,CSM,1994:28～41.
[3]Saylor B Z.Sequence stratigraphy and carbonate-silicclastic mixing in terminal proterozoic foreland basin,urusis formation,NamaGroup,Namibia[J].Journal of Sedimantary Research,2003,73(2):264～279.
[4]Bergman K M,Walker R G.High-resolution sequence stratigraphy analysis of the Shannon sandstone in wxoming,using a tempate forregional correlation[J].Journal of Sedimantary Research,1995,65(2):255～264.
[5]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.
[6]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.
[7]胡忠贵.阿尔及利亚韦德迈阿次盆地FTEb区块三叠系层序——岩相古地理[J].石油天然气学报,2011,33(2):11～16.
[8]魏钦廉,郑荣才,肖玲.惠州凹陷古近系珠海组——恩平组高分辨率层序格架与储层分布规律[J].地层学杂志,2010,34(1):60～65.
[9]孙雨,马世忠,张秀丽,等.红岗北地区扶余油层河流三角洲体系高分辨率层序地层划分与单砂体等时对比[J].石油天然气学报,2010,32(1):22～26.
[10]李霞,范宜仁,杨立伟,等.测井曲线小波变换特性在层序地层划分中的应用[J].大庆石油地质与开发,2006,25(4):112～115.
[11]李新虎.小波分析在测井层序地层划分中的应用[J].天然气地球科学,2008,19(3):385～389.
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