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苏北盆地地震剖面极性判别方法
The method of polarity judgement on seismic cross-sectionin Subei Basin
【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。
【Abstract】 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.
【Key words】 Subei Basin; igneous rock; polarity standard; seismic wavelet; synthetic seismogram;
- 【文献出处】 复杂油气藏 ,Complex Hydrocarbon Reservoirs , 编辑部邮箱 ,2012年03期
- 【分类号】P631.4
- 【下载频次】99