时间剖面上分析陷落柱充水性的探讨
|
摘要
通过对充水型、不充水型陷落柱地质模型的研究 ,发现绕射波的射线穿过陷落柱内的低速体产生明显的时间延迟 ,并且充水型陷落柱比不充水型陷落柱的延迟绕射波延迟时间要长 ;由延迟时间推算出陷落柱内的充填速度 ,据此来分析陷落柱的充水性 .用此方法可直接分析地震时间剖面上陷落柱的充水性
The geological models for both water filled and non water filled subsided columns were researched. The result shows that the penetration of diffraction wave rays through the low velocity zone in subsided column results in an obvious time delay, with the water filled subsided column being longer in delayed time than that of the non water filled subsided column. The delayed time can be used for calculating the filling velocity and the water filling situation of the subsided column. This method can be used to analyze directly the water filling situation of subsided columns from the seismic time section.
The geological models for both water filled and non water filled subsided columns were researched. The result shows that the penetration of diffraction wave rays through the low velocity zone in subsided column results in an obvious time delay, with the water filled subsided column being longer in delayed time than that of the non water filled subsided column. The delayed time can be used for calculating the filling velocity and the water filling situation of the subsided column. This method can be used to analyze directly the water filling situation of subsided columns from the seismic time section.
引文
[1] 李承楚,吴律.地震勘探新技术[M].北京:石油大学出版社,1999.
[2] 陆基孟.地震勘探原理[M].北京:石油大学出版社,1993.
[3] 张 金卜,杨长春,李幼铭.三维多值超时地震波场重建及格林函数计算[J].地球物理学报,2000,43(2):241-250.
[4] 朱卫红,郑建伟.折射静校正在三维地震资料处理中的应用[J].石油物探,1999(3):77-80.
[5] 王 磊,林建东.三维静校正在解释工作站上的实现[J].中国煤田地质,1999(3):41-44
[2] 陆基孟.地震勘探原理[M].北京:石油大学出版社,1993.
[3] 张 金卜,杨长春,李幼铭.三维多值超时地震波场重建及格林函数计算[J].地球物理学报,2000,43(2):241-250.
[4] 朱卫红,郑建伟.折射静校正在三维地震资料处理中的应用[J].石油物探,1999(3):77-80.
[5] 王 磊,林建东.三维静校正在解释工作站上的实现[J].中国煤田地质,1999(3):41-44
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心