叠加速度成图在CPS3绘图系统中的实现
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摘要
基于 CPS3绘图系统的工作原理和常规时深转换 ,针对目的层埋藏深 ,速度横向变化大 ,钻孔资料少的三维勘探区 ,摸索出了一套由叠加速度出发进行时深转换的方法。此方法成功地应用于华北煤田 TSK勘探区的三维资料解释中 ,弥补了传统时深转换方法的不足 ,收到了很好的效果 ,所绘制的构造图深度同巷道资料吻合。
Based on the principle of CPS3 chart system and conventional time depth conversion,a time depth conversion procedure,which takes velocity stack as its first step,has been developed for seismic data processing.The procedure was designed for an area with great lateral velocity variations,big target formation depth and only a little borehole data available.It was successfully applied to the interpretation of a 3 D data derived in the area of TSK in a north China coalfield.The procedure improved traditional time velocity conversion and the depth value of structure map produced was in accordance with mining data.
Based on the principle of CPS3 chart system and conventional time depth conversion,a time depth conversion procedure,which takes velocity stack as its first step,has been developed for seismic data processing.The procedure was designed for an area with great lateral velocity variations,big target formation depth and only a little borehole data available.It was successfully applied to the interpretation of a 3 D data derived in the area of TSK in a north China coalfield.The procedure improved traditional time velocity conversion and the depth value of structure map produced was in accordance with mining data.
引文
1 何樵登 ,熊维纲 .应用地球物理教程 .地质出版社 ,1 991
2 王江等 .时深转换方法的改进 .石油地球物理勘探 ,1 995;增刊2
3 王涤清 ,吴天蒙 .三维地震勘探在高速推覆盖区的应用 .煤田地质与勘探 ,1 997;2 5( 3) :4 9～ 54
4 王磊 ,林建东 .三维静校正在解释工作站上的实现 .中国煤田地质 ,1 998;( 3)
2 王江等 .时深转换方法的改进 .石油地球物理勘探 ,1 995;增刊2
3 王涤清 ,吴天蒙 .三维地震勘探在高速推覆盖区的应用 .煤田地质与勘探 ,1 997;2 5( 3) :4 9～ 54
4 王磊 ,林建东 .三维静校正在解释工作站上的实现 .中国煤田地质 ,1 998;( 3)
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