车西地区高分辨率地震资料T_6反射层的标定与解释

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英文篇名：Calibration and interpretation of T_6 horizon of high resolution seismic data from Chexi area 中文刊名：油气地球物理 英文刊名：Petroleum Geophysics 作者：宋传春 英文作者：Song Chuanchun 中文关键词：高分辨率地震剖面 ; 沙三段 ; T6反射层 ; 反射层标定 ; 目的层解释 ; 车西地区 英文关键词：high resolution seismic section ; Es3 ; T6 horizon ; reflection horizon calibration ; interesting interval inter-pretation ; Chexi area 出版日期：2004-01-26 机构：胜利油田有限公司物探研究院, 年：2004 期：01 出版单位：油气地球物理

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。
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.

引文

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