煤炭地震激发介质与井深的关系

通过地震波在近地表附近双源传递机理的研究,论述了近地表介质与激发井深的关系,研究了利用地震波最大激发能量与地震波最大信噪比选择爆破源地震激发井深的方法。三维地震实例研究结果表明,地震波在近地表附近的双源传递与品质因数是选择地震波的激发井深的重要因素。从实例结果来看,该方法不仅取得了高质量的勘探成果,而且节约了采集费用。

The relationship of blasting sources between medium and borehole depth in coal seimic exploration

By studying the double resource mechanism of seismic waves in the near-surface Layers,the article discusses the relationship of blasting sources between the near-surface layer and borehole depth,and investigated the method that how to select the seismic excited depth of blasting source by using the largest energy and signal-to-noise of the seismic wave.The research of 3-D seismic cases suggested that the double source and Q factor of seismic waves near the near-surface layer would be the most important factor for choosing excited depth of the seismic waves,and the examples shows that the method not only achieved high quality results of exploration,but also saved the costs of acquisition.