地震勘探中炸药震源药型选择问题研究

运用炸药爆炸理论，从炸药爆炸作功机理角度，论述了炸药对地震勘探中激发能量和激发频率的影响。理论分析和生产实验表明，选择合适的小药量高能炸药，能够提高炸药作功能力，增强激发能量，有利于激发出较强能量的高频震源子波。在含水的高密度介质中，高频能量衰减小，传递效率高，能够获得高品质的地震资料，为地震解释提供更多的信息。

Research on the problem of dynamite type selection in seismic prospecting

This paper discusses the effect of dynamite selection on excitation energy and frequoncyfrom the angle of doing -work mechanism of dgnamite explosure by using the theory of dynamite explo-sure Theorectical analysis and field experiments show that the selection of appropriate small-chargehigh-energy dynamite can improve the droamite work capability and enhance the excitation energy,therefore beneflcial to generating high-frequency source wavelet with relatlvely high energy. In high-density medium, high-frequency seismic wave attenuates slowly and has a high transmission efficiency.Thus high-quality seismic data can be obtained, which provides more informtion to seismic interpreta -tion.