牛庄洼陷沙三段上亚段—沙二段高精度层序地层学
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摘要
通过以三维地震资料为约束,以岩心和录井测井资料作标定,以Fischer图解和小波分析为核心,以泥岩声波时差为参考的多因素层序地层分析技术,对牛庄洼陷沙三段上亚段—沙二段进行了高精度层序地层学研究。划分出2个层序、6个准层序组和21个准层序,建立了研究目的层的高精度层序地层格架。Fischer图解可有效地反映可容纳空间的变化,小波分析可划分沉积旋回,两者相结合既可以提高Fischer图解的准确性,又可以直接划分准层序。
The upper Es3 to Es2 of Niuzhuang Ssag can be divided into two sequences,six subsequence groups and twenty-one subsequence by using the polyfactorial analytic method of sequence stratigraphy,which takes the 3D seismic data as the constraint,uses the core and logging data as the demarcation,takes Fischer plot and wavelet analysis as the nucleus and also refers to the information of sonic logging in mud.Then the high-resolution sequence strati-graphic framework of the target strata was built.Fischer plot can reflect the transformation of the accommodation,wavelet analysis can be used to divide sedimentary cycles,and the combination of them can improve the accuracy of the Fischer plot and divide the subsequence directly.
The upper Es3 to Es2 of Niuzhuang Ssag can be divided into two sequences,six subsequence groups and twenty-one subsequence by using the polyfactorial analytic method of sequence stratigraphy,which takes the 3D seismic data as the constraint,uses the core and logging data as the demarcation,takes Fischer plot and wavelet analysis as the nucleus and also refers to the information of sonic logging in mud.Then the high-resolution sequence strati-graphic framework of the target strata was built.Fischer plot can reflect the transformation of the accommodation,wavelet analysis can be used to divide sedimentary cycles,and the combination of them can improve the accuracy of the Fischer plot and divide the subsequence directly.
引文
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[6]冯有良.东营凹陷下第三系层序地层格架及盆地充填模式[J].地球科学,1999,24(6):635-642.
[7]李阳,蔡进功,刘建民.东营凹陷下第三系高分辨率层序地层研究[J].沉积学报,2002,20(2):210-216.
[8]张宗檩,操应长,高永进,等.东营凹陷沙三段—沙一段层序地层与油气[J].石油勘探与开发,2003,30(3):29-31.
[9]Wyllie MR J,Gregory A R,Gardner L W.Elastic wave velocities in heterogeneous and porous media[J].Geophysics,1956,21(1):41-70.
[10]操应长,姜在兴,夏斌,等.利用测井资料识别层序地层界面的几种方法[J].石油大学学报:自然科学版,2003,27(2):23-26.
[2]陈宝宁,王宝言,李保,等.济阳坳陷陡坡带层序地层特征[J].油气地质与采收率,2005,12(6):13-15.
[3]邱桂强.陆相断陷盆地高精度层序地层研究现状与思路[J].油气地质与采收率,2005,12(3):1-4.
[4]田景春,曾允孚,张长俊,等.东营凹陷沙河街组层序地层及地层格架研究[J].矿物岩石,1994,14(2):37-46.
[5]武法东,陈建渝,刘从印,等.东营凹陷第三纪层序地层格架及沉积体系类型[J].现代地质,1998,12(4):559-566.
[6]冯有良.东营凹陷下第三系层序地层格架及盆地充填模式[J].地球科学,1999,24(6):635-642.
[7]李阳,蔡进功,刘建民.东营凹陷下第三系高分辨率层序地层研究[J].沉积学报,2002,20(2):210-216.
[8]张宗檩,操应长,高永进,等.东营凹陷沙三段—沙一段层序地层与油气[J].石油勘探与开发,2003,30(3):29-31.
[9]Wyllie MR J,Gregory A R,Gardner L W.Elastic wave velocities in heterogeneous and porous media[J].Geophysics,1956,21(1):41-70.
[10]操应长,姜在兴,夏斌,等.利用测井资料识别层序地层界面的几种方法[J].石油大学学报:自然科学版,2003,27(2):23-26.
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