辽西凹陷欢喜岭地区沙河街组层序格架的建立
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摘要
对辽西凹陷欢喜岭地区沙河街组进行了深入细致的层序划分以寻找岩性地层圈闭,由于地震反射特征在地震资料上表现不明显,层序界面识别困难,应用经典层序地层学的原理和方法,综合运用欢喜岭地区地震和测井资料,借助地震时频分析技术和测井连续小波变换来确定层序界面,建立了该区高精度层序地层格架。研究表明,地震时频分析技术和测井小波变换进行层序旋回划分是较为可靠和实用的。沙河街组共发育有5个具有等时意义的层序界面,可划分为6个三级层序。
Sequence division of Shahejie Formation is very significant for searching for lithologic and stratigraphic traps in Huanxiling area,western Liaohe Sag.However,the seismic reflection characteristic of seismic data shows indistinctly,identification of sequence boundary is difficult.By utilizing the principle and method of classic sequence stratigraphy and studying seismic and well logging data,in virtue of seismic time- frequency analysis and logging continuous wavelet transformation,sequence boundary is confirmed.Study indicates seismic time-frequency analysis and logging continuous wavelet transformation is relatively credible and practical.Shahejie Formation in Liaohe western Sag develops 5 isochronic sequence boundaries and can be divided into six level-three sequences.
Sequence division of Shahejie Formation is very significant for searching for lithologic and stratigraphic traps in Huanxiling area,western Liaohe Sag.However,the seismic reflection characteristic of seismic data shows indistinctly,identification of sequence boundary is difficult.By utilizing the principle and method of classic sequence stratigraphy and studying seismic and well logging data,in virtue of seismic time- frequency analysis and logging continuous wavelet transformation,sequence boundary is confirmed.Study indicates seismic time-frequency analysis and logging continuous wavelet transformation is relatively credible and practical.Shahejie Formation in Liaohe western Sag develops 5 isochronic sequence boundaries and can be divided into six level-three sequences.
引文
[1]张军华,王永刚,杨国权,等.地震旋回体的概念及应用[J].石油地球物理勘探,2003,38(3):281-284.
[2]余继峰,李增学.测井数据小波变换及其地质意义[J].中国矿业大学学报,2003,32(3):336-339.
[3]董波.时频分析在地层旋回性分析中的应用[J].华北地震科学,2004,22(4):16-19.
[4]胡受权,郭文平,邵荣松.泌阳断陷下第三系核三上段高频层序中米兰柯维奇天文旋回信息[J].矿物岩石,2000,20(3):29-34.
[5]刘葵,刘招君,朱建伟,等.时频分析在石油地球物理勘探中的应用[J].世界地质,2000,19(3):282.
[6]Andreas P F,rederik P A.Detection of sed imentary cyclicityand stratigr-aphic completeness by wavelet analysis:an application to late A lbian cy-clostratigraphy of the western Can-ada sed imentary basin[J].Journal of Sed imentary Re-search,1999,69(4):862-875.
[7]王永刚,宋若微.层序地震学在地层内部结构分析中的应用[J].石油物探,1997,36(增刊):36-39.
[8]冯有良,邱以刚.高精度层序地层学在济阳坳陷下第三系隐蔽油气藏勘探中的应用[J].石油学报,2003,24(1):49-54.
[9]林畅松,潘元林,肖建新,等.构造坡折带-断陷湖盆层序和油气预测的重要概念[J].地球科学,2000,25(3):260-267.
[10]李树青,李和,徐伟,等.松辽盆地南部下白垩统层序构型及沉积特征[J].天然气工业,2007,27(4):36.
[2]余继峰,李增学.测井数据小波变换及其地质意义[J].中国矿业大学学报,2003,32(3):336-339.
[3]董波.时频分析在地层旋回性分析中的应用[J].华北地震科学,2004,22(4):16-19.
[4]胡受权,郭文平,邵荣松.泌阳断陷下第三系核三上段高频层序中米兰柯维奇天文旋回信息[J].矿物岩石,2000,20(3):29-34.
[5]刘葵,刘招君,朱建伟,等.时频分析在石油地球物理勘探中的应用[J].世界地质,2000,19(3):282.
[6]Andreas P F,rederik P A.Detection of sed imentary cyclicityand stratigr-aphic completeness by wavelet analysis:an application to late A lbian cy-clostratigraphy of the western Can-ada sed imentary basin[J].Journal of Sed imentary Re-search,1999,69(4):862-875.
[7]王永刚,宋若微.层序地震学在地层内部结构分析中的应用[J].石油物探,1997,36(增刊):36-39.
[8]冯有良,邱以刚.高精度层序地层学在济阳坳陷下第三系隐蔽油气藏勘探中的应用[J].石油学报,2003,24(1):49-54.
[9]林畅松,潘元林,肖建新,等.构造坡折带-断陷湖盆层序和油气预测的重要概念[J].地球科学,2000,25(3):260-267.
[10]李树青,李和,徐伟,等.松辽盆地南部下白垩统层序构型及沉积特征[J].天然气工业,2007,27(4):36.
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