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首页> 外文期刊>Seismological research letters >Airgun Excitation Experiments at Different Placement Depths in the Qilian Mountain of Gansu Province, China
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Airgun Excitation Experiments at Different Placement Depths in the Qilian Mountain of Gansu Province, China

机译：中国甘肃省祁连山不同放置深度的Airgun激励实验

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摘要

Airgun has been used as an active source to generate seismic waves in on-land reservoirs by releasing high pressure air beneath the water surface. There are significant differences in signal energy and frequency given different airgun placement depths. In this article, we compared and analyzed the signal characteristics of airgun placed at different depths in the Qilian Mountain in Gansu Province. Results show that both the amplitude (energy) and the dominant frequency of the airgun signal increased widi increasing placement depths. Within the tested depth range, we found that the optimum airgun placement depth was 30 m and the dominant frequency was 3-13 Hz. Further implementation of these findings can help improve the extraction accuracy of the weak signals in the observation system.
机译：Airgun已被用作有源源，通过释放水面下方的高压空气来产生地板储层的地震波。 给出了不同的气枪放置深度的信号能量和频率存在显着差异。 在本文中，我们比较并分析了甘肃省祁连山不同深度的气枪信号特征。 结果表明，气体信号的幅度（能量）和主导频率增加了Widi增加放置深度。 在测试的深度范围内，我们发现最佳气体放置深度为30米，主导频率为3-13Hz。 这些发现的进一步实施可以有助于提高观察系统中弱信号的提取精度。

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