多级延迟爆炸震源的研究与应用  

Study and application of multi-level-delayed explosive source.

作　　者：徐淑合[1] 于静[1] 胡立新[1] 刘泰生[1] 时兴文[1] 

机构地区：[1]胜利油田地球物理勘探开发公司

出　　处：《石油地球物理勘探》2003年第4期341-349,357,共10页Oil Geophysical Prospecting

摘　　要：多级延迟爆炸震源是根据当前地震勘探技术发展的需要,在聚能震源的基础上发展起来的一种新型爆炸震源。文中介绍了多级延迟爆炸震源的原理,通过室内模拟试验和测试及现场的多种地表结构和不同勘探对象的试验,取得了明显的效果。在提高激发的能量和方向性、扩展高频信号、减少因爆炸产生的干扰信号、提高信噪比等方面,多级延迟爆炸震源比常规的炸药震源有明显的优势。On the basis of concentrated energy source and in order to meet the needs of current development of seismic exploration technique,a new type of explosive source multi-level-delayed explosive source is developed. The paper described the principle of multi-level-delayed explosive source,modeling test indoor and site test for multiple of surface structures and different exploration targets,achieving obvious effects. In comparison with ordinary charge source, the multi-level-delayed explosive source has strong superiority: improving explosive energy,extending high-frequency signal,improving explosive directivity, reducing interference caused by explosive and improving signal-to-noise ratio.

关 键 词：多级延迟爆炸震源 地震勘探技术 聚能震源 级间距 入射角 频宽 主频 子波 

分 类 号：P631.4[天文地球—地质矿产勘探]