辽河盆地东部浅海地区层位标定方法
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摘要
地震反射层的地质层位是地震资料解释的基础,确定地震反射层的常用方法是利用声波测井资料,通过合成记录与反射层的标定。但声波测井的分辨率较高,地震记录的分辨率低,直接利用声波测井曲线制作合成记录,与实际地震记录进行层位标定常常不匹配。为提高层位标定的准确性,参考了多种测井曲线与岩性的对应关系,以及合成记录极性与岩性和层位的对应关系,在辽河盆地东部浅海地区实现了准确的层位划分。
Seismic horizon labeling is the basis of structural interpretation of seismic data. The usual method of seismic horizons labeing is to tie the seismic synthetic record made by sonic curve to the reflection horizons. The reflection horizons of seismic record usually does not, however, match the seismic synthetic record well, because of the low resolution of seismic record and the high resolution of sonic curve. To improve the veracity of the seismic horizons labeling, by analyzing the relationship between the multiple well logging data and the lithology, and the connection between the polarity of seismic records and the horizons of lithology, we realize reasonable seismic horizons labeling in the east shallow sea area of the Liaohe basin.
Seismic horizon labeling is the basis of structural interpretation of seismic data. The usual method of seismic horizons labeing is to tie the seismic synthetic record made by sonic curve to the reflection horizons. The reflection horizons of seismic record usually does not, however, match the seismic synthetic record well, because of the low resolution of seismic record and the high resolution of sonic curve. To improve the veracity of the seismic horizons labeling, by analyzing the relationship between the multiple well logging data and the lithology, and the connection between the polarity of seismic records and the horizons of lithology, we realize reasonable seismic horizons labeling in the east shallow sea area of the Liaohe basin.
引文
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[8]陈发亮,韩福民,刘忠亮,等.东濮凹陷含盐地层合成记录制作方法研究[J].勘探地球物理进展,2006,29(5):257.
[2]孟恩,徐刚.约束地震反演中测井数据的标准化及储层的精细标定[J].石油地球物理勘探,2005,40(2):226.
[3]罗运先,赵宪生.地震波速度的纵、横向变化分析[J].成都理工大学学报,2005,32(5):523.
[4]李正文,赵志超.地震勘探资料解释[M].北京:地质出版社,1988.
[5]郝涛,朱伟.准噶尔盆地腹部高精度合成地震记录制作技术研究分析[J].天然气勘探与开发,2005,28(4):16.
[6]曾正明.合成地震记录层位标定方法改进[J].石油地球物理勘探,2005,40(5):576.
[7]卢圣祥,李铭华.地震合成记录的制作与层位标定中应注意的几个问题[J].江汉石油科技,2006,16(1):4.
[8]陈发亮,韩福民,刘忠亮,等.东濮凹陷含盐地层合成记录制作方法研究[J].勘探地球物理进展,2006,29(5):257.
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