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一种低爆速炸药在地震勘探中的应用
The application of low-detonation velocity explosive in seismic exploration
【摘要】 针对表层含沙量高的地区地震波传播速度低的特点,研究了一种密度大、体积小、能量较高的低爆速炸药。 探讨了低爆速炸药的震源机理,介绍了低爆速炸药的制造方法和性能,并在下扬子地区(表层含沙量高)进行了 炸药性能试验。试验结果表明,低爆速炸药较之中、高爆速炸药及常规炸药与围岩有更好的匹配和耦合关系,因 而使地震记录的信噪比、分辨率都得到了提高。
【Abstract】 low-detonation velocity explosive containing higher energy, which can be applied to epicenter exploration. The mechanism of epicenter-source exploration, the manufacture method and capability, the application experiment in geology, and comparison with the other kind of epicenter explosives are discussed. Being used for seismic exploration, it has better width of frequency chart and S/N, and improves the S/N and resolution of stratum profiles.
【关键词】 含沙量高地层;
低爆速炸药;
密度;
能量;
试验;
信噪比;
分辨率;
【Key words】 formation with high sand content; low-detonation velocity explosive; density; energy; testing; S/N; resolution;
【Key words】 formation with high sand content; low-detonation velocity explosive; density; energy; testing; S/N; resolution;
- 【文献出处】 石油物探 ,Geophysical Prospecting For Petrole , 编辑部邮箱 ,2005年02期
- 【分类号】P631.4
- 【被引频次】1
- 【下载频次】107