【摘要】 车西地区沙三段下部第4套油页岩之下发育油泥岩"尾巴"段,可划分为3个砂层组,是高精度勘探的主要目的层。利用录井剖面、电测曲线和合成记录对高分辨率三维地震剖面T6反射层进行了标定和解释:将T6反射层标定于沙三段底部两个强相位的第1个波峰;指出该强相位的底界不是一岩性界线,而是一由速度变化引起的岩石物性界面;根据目的层段的地震反射特征,提出了改善高分辨率地震解释的方法和建议。更多还原

【Abstract】 The’tail’ of oil sludge developed under the 4th oil shale of bottom of Es3 in Chexi area, which can be divided into 3sand body groups and are major targets for high precision exploration. The T6 horizon of high resolution seismic datawere calibrated and interpreted by using log sections, logs and synthetic sections: the T6 horizon was calibrated to thefirst peak of between two strong phases at bottom of Es3; Pointed out that the bottom boundary of strong phase was nota lithologic boundary but a rock physical property boundary; Presented some improvments to the high resolution seis-mic methods and suggestions according to the seismic reflection characteristics of the interesting intervals.更多还原