复杂黄土塬区浅埋煤层三维地震勘探技术研究

Research on 3D seismic exploration technology of shallow buried coal seam in complex loess tableland area

三维地震勘探技术是煤矿采区构造勘探的主要手段,在地震地质条件较好的区域取得了巨大的成功。但对于地震地质条件较差的黄土塬区、特别是在煤层埋藏深度浅的区域效果不太理想。本文在对沙梁井田三维地震试验区地震地质条件分析的基础上,分析了地震勘探的技术难点,给出了技术对策;指出了数据处理与资料解释的关键技术;得到了较准确的地质成果。实践证明,在复杂黄土塬浅埋煤层区进行三维地震勘探是可行的。

3 D seismic exploration technology is the main method of structural exploration in coal mining areas, and has achieved great success in areas with good seismic and geological conditions. However, the effect is not ideal for loess tableland areas with poor seismic and geological conditions, especially for areas with shallow buried depth of coal seams. Based on the analysis of the seismic geological conditions in the 3 d seismic test area of shaliang minefield, this paper analyzes the technical difficulties in seismic exploration and gives the technical countermeasures. The key technologies of data processing and data interpretation are pointed out. More accurate geological results have been obtained. Practice has proved that it is feasible to carry out 3-d seismic exploration in the shallow buried coal seam area of complex loess tableland.