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在陆上地震勘探中,炸药震源激发是主要的激发方式,激发因素的选取正确与否直接影响地震资料的品质,激发井深是最重要的激发因素之一,选择合理的激发井深,是确保获得高品质地震资料的基础。常规的激发井深选择主要基于虚反射理论,井深设计在虚反射界面下;通过系统试验点进行井深验证,选择合适的激发井深进行生产。在高精度地震勘探中,对地震信号的频率有较高的要求,因此对激发井深的研究需要进一步重视,最佳地选择井深,确保激发频率和能量下传。
In the onshore seismic exploration, dynamite excitation is the main excitation mode. Whether the excitation factors are selected correctly or not directly affects the seismic data quality and excitation well depth is one of the most important excitation factors. Choosing a reasonable excitation well depth is to ensure that High-quality seismic data foundation. The conventional well depth selection is mainly based on the theory of virtual reflection. The well depth is designed under the fictitious reflection interface. The well depth is validated through the system test points, and the appropriate well depth is selected for production. In high-precision seismic exploration, there is a high requirement on the frequency of seismic signals. Therefore, research on excitation well depth needs further attention. The optimal well depth is selected to ensure excitation frequency and energy transfer.