Method and system for obtaining optimal excitation factor

• Main Author: ZENG ZHAOHAN
• Format: Patent
• Language: Chinese; English
• Published: 21.04.2023
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention provides a method and system for obtaining an optimal excitation factor, and belongs to the field of oil and gas geophysical exploration. According to the method for obtaining the optimal excitation factor, a signal-to-noise ratio is obtained by adopting a frequency division scanning mode, then a plurality of signal-to-noise ratio curves are obtained by utilizing the signal-to-noise ratio, an intersection area of the plurality of signal-to-noise ratio curves is searched, and finally the optimal excitation factor is determined according to the intersection area. The optimal excitation factors comprise the optimal well depth and the optimal explosive quantity. The optimal excitation factor obtained by the method can give consideration to the signal-to-noise ratio and the resolution ratio at the same time. According to verification of actual data, the method is good in effect, the optimal excitation factor can be well obtained, and then the seismic data quality is improved. 本发明提供了一种获得最佳激发因素的方法及系统，属