强反射层屏蔽下薄煤层三维地震勘探应用研究

Applied Research on 3D Seismic Exploration in a Thin Coal Seam under the Shield of Strong Reflection Layer

在淮南矿区三维地震勘探中 ,主采煤层 (13- 1煤层 )地震反射波很强 ,对下部煤层 (薄且不稳定 )构成强屏蔽 ,几乎得不到反射波。通过分析研究 ,采取新的技术方法 ,解决了困惑多年薄煤层地震探测的难题 ,取得了很好的效果 。

In the 3D seismic exporation of Huainan Mining Area,because the strong seismic reflection waves are produced in upper thick coal seam a strong shied is formed for the lower thin coal seam in which the reflection waves can hardly obtained.A new technical method is used to solve the difficult problem of 3D seismic exploration in thin seam,which has puzzled us for many years and the good geological result has been made.