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我们设计的海上浅层高分辨率地震勘探系统包括震源、等浮电缆接收系统、记录系统及资料处理四个部分。电火花震源激发产生具有较宽频谱的子波,可以作为一种比较理想的高分辨率勘探震源。等浮电缆要设计成短排列、短道间距和较小偏移距形式。记录系统要保证较高的采样率。在资料处理中首先要将电火花震源激发的子波进行最小相位化,然后正确地运用反褶积技术。我们利用这种系统,可以获得大于1.2秒的地震记录。
The shallow seismic high-resolution seismic exploration system we designed includes the source, the floating cable receiving system, the recording system and the data processing. EDS excitation to generate a broad spectrum of the wavelet, can be used as an ideal high-resolution exploration source. Floating cables should be designed in short alignment, short track pitch and smaller offset. Recording system to ensure a high sampling rate. In data processing, firstly, the wavelets excited by EDM should be phase-minimized and then the deconvolution technique should be used correctly. Using this system, we can get seismographs longer than 1.2 seconds.