三维高分辨地震勘探在龙东矿的特殊应用效果

Special Application Results of 3D High-resolution Seismic Exploration in Longdong Mine

从构造情况、火成岩和天然焦分布以及新生界底部砂层、粘土层分布等方面论述了三维高分辨率地震勘探在大屯煤电公司龙东矿的特殊应用效果。研究表明,三维地震勘探不仅改变了龙东矿西二采区为一简单单斜构造形态的认识,而且圈定了7号煤层中火成岩和天然焦的分布以及新生界底部砂层、粘土层的分布状况,发现原井田边界F_张断层并不存在,并分析了以往误判的原因,为采区重新界定、工作面划分等提供了新的可靠依据。

The paper has discussed special application results of 3D high-resolution seismic exploration from structure, igneous rock, distribution of natural coke and layers of sand and clay in Cenozoic bottom et al., in Longdong mine of Datun coal and Electric limited company.The study shows that 3D seismic prospecting not only changes the view which consider No.2 mining area of western Longdong mine is simple monocline form, but also outlines the distribution of igneous rock, natural coke in No.7 coalbed, and layers of sand and clay in Cenozoic bottom,and discovers the former coal mine boundary fault Fxheng nonexistent, and analysed the reason of former wrong inference. These results provides new dependable basis for re-delimit productive area and working face et al.