地震波相位信息的分析与应用

ANALYSIS AND APPLICATION OF SEISMIC PHASE INFORMATION

南海西部石油公司研究院

本文分析了常规地震剖面以波形变面积的方式显示存在的缺陷.这种缺陷限制了人们对地下地质问题的认识.文中在分析了地震波相位信息的地质意义基础上,采用一种定量标识的显示方式.这种显示方式表现了丰富、形象的地质现象;在某海域的油气田探测中,解释了波形变面积剖面上难从解释的多种沉积现象;特别是对这个油气田物性边界的预测,其结果与其它多种资料所圈定的范围是一致的.

The deficiency of the conventional variable-area record section often obstructs us from recognizing the geological features in a deep going way. Hence, in order to have a deep understanding of the underground geological features, it is necessary to find a new way of improving. Such a way has ultimately been found by the author, that is, to display the variablearea by marking it quantitatively. The foundation of it is making clear the geological setting of the seismic phase information. Lots of various geological phenomina could be displayed vividly in this way. Many sedimentary phenomina difficult to interpret were interpreted with it satisfactorily in marine oil/gas exploration. Good results were achieved, especially in boundary predication.