关于使用共深点交错耦合观测系统的建议

SUGGESTION ABOUT THE ADOPTION OF THE LAYOUT OF GDP CROSS COUPLING

地质矿产部石油物探研究所

本文提出用普通的四个观测系统进行重新组合,可得出共深点交错耦合的时间剖面。原始地震道的间距可以按照要求进行任意设计,共深点距为道间距的1/4或1/8,能够提高地震资料的讯噪比。用多道地震仪进行实际野外工作时,建议使用这种方便灵活的多次叠加观测系统。

In this paper, the author has suggested a new way that by the rearrangement for 4 conventional layout charts, a CDP cross coupling time section could be resulted. The group intervals might be set up arbitrarily as reguired. The CDP interval is 1/4 or 1/8 of the group interval. By virtue of it, the S/N ratio could be greatly improved.This kind of layout is in essence convenient and flexible, especially for using the of multi-channel seismic recorders.