苏北盆地地震剖面极性判别方法
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摘要
地震剖面极性判别直接关系到地震地质层位标定的准确性,现有的合成地震记录判别地震剖面极性方法存在不确定性。围绕这一问题,利用苏北盆地火成岩分布广泛、反射特征明显的特点,提出了基于地震剖面零相位化处理的极性判别流程,并详细叙述了流程每一步的方法原理。通过在SN地区的实际应用证实该方法是适用于苏北盆地的有效方法。
The accuracy of seismic horizon calibration is directly affected by judgment of seismic cross-section polarity.Existing synthetic seismograms,which were used to judge seismic profile polarity,have some uncertainty.In order to solve the problem,a new polarity judgment program based on the zero-phase processing of seismic data was put forward and introduced in detail according to obvious reflection features and extensive distribution of igneous rocks in Subei basin.Real application results in SN area proved that the method is effective and suitable for the Subei basin.
The accuracy of seismic horizon calibration is directly affected by judgment of seismic cross-section polarity.Existing synthetic seismograms,which were used to judge seismic profile polarity,have some uncertainty.In order to solve the problem,a new polarity judgment program based on the zero-phase processing of seismic data was put forward and introduced in detail according to obvious reflection features and extensive distribution of igneous rocks in Subei basin.Real application results in SN area proved that the method is effective and suitable for the Subei basin.
引文
[1]李庆忠.走向精确勘探的道路[M].北京.石油工业出版社,1993:71-146.
[2]R E谢里夫.勘探地球物理百科词典[M].南京.南京大学出版社,1994:257.
[3]韩文功.地震剖面的极性问题[J].石油地球物理勘探,1994,29(6):769-772.
[4]陈广军,张善文.对地震资料应用中几个常见问题的思考[J].石油地球物理勘探,2001,36(1):115-121.
[5]王金铎,路慎强,于建国,等.地震资料解释中的极性判别技术[J].石油物探,2001,40(2):77-83.
[6]孙振涛,孟宪军,慎国强,等.高精度合成地震记录制作技术研究[J].石油物探,2002,37(6):641-643.
[2]R E谢里夫.勘探地球物理百科词典[M].南京.南京大学出版社,1994:257.
[3]韩文功.地震剖面的极性问题[J].石油地球物理勘探,1994,29(6):769-772.
[4]陈广军,张善文.对地震资料应用中几个常见问题的思考[J].石油地球物理勘探,2001,36(1):115-121.
[5]王金铎,路慎强,于建国,等.地震资料解释中的极性判别技术[J].石油物探,2001,40(2):77-83.
[6]孙振涛,孟宪军,慎国强,等.高精度合成地震记录制作技术研究[J].石油物探,2002,37(6):641-643.
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