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回放工作的改进一、浅层初至切除技术在排列较大的情况下,由于远道能量衰减,检波器组合对远道浅层反射的压制,相近反射波的干涉,浅层的不均质性和大校正量造成的波形,频率畸变以及动校正量不够等原因,造成远道浅层反射的波形畸变,使迭加效果受到严重影响。为了改善浅层反射的迭加效果,我们在回放处理上,设计了浅层初至切除装置。在开始解决这个问题的时候,我们是通过单独回放近炮点的12道或16道、20道,即用三次、四次或五次迭加的办
Playback improvements First, the shallow first cut to the exclusion of technology in the case of large arrangement, due to the far-energy attenuation, the combination of geophone remote reflection shallow reflection, reflection of similar interference, shallow heterogeneity and Large amount of correction caused by the waveform, frequency distortion and motion correction is not enough and other reasons, resulting in the shallow reflection of the waveform distortion far, so that the superimposed effect is seriously affected. In order to improve the superposition effect of shallow reflection, we designed the shallow first cut device in the playback process. When we started to tackle this problem, we did this by playing back the 12 or 16 and 20 channels near the shots, that is, three, four or five times over