【摘要】 地下岩层含气时会引起地震纵波能量吸收与构造畸变问题,且单一利用纵波资料在岩性油气藏勘探中会表现出明显局限性。而转换波受地层含流体影响较小,联合应用纵波和转换波资料能有效解决单独利用纵波资料易受多重因素影响而出现的多解性问题。本文基于柴达木盆地三湖地区的高品质多波数据,从分析纵波与转换波在走时及振幅等属性上的差异入手,通过转换波合成记录标定及纵波与转换波资料匹配等,联合应用多波地震属性进行储层描述和油气预测。经实际钻探验证,本文方法在三湖地区具有较强的适用性。更多还原

【Abstract】 When subsurface layers contain natural gas,structure imaging distortion on P wave seismic sections occurs with P wave energy absorption.This is one of limitations of P wave seismic exploration.But converted wave(P-S wave) is affected much less by fluid in layers,and could be used with P wave to effectively decrease multiple solutions.The article provides a successful example of using multi-wave seismic attributes to reservoir characterization and hydrocarbon prediction through synthetics of P-S wave and registration of P wave and P-S wave based on high quality of multi-wave seismic data in Sanhu area,Qaidam Basin.Recent drilling results show the effectiveness of this method in the area.更多还原