Application of KLseisII High Precision First Arrival Picking Technology

10.6919/ICJE.202205_8(5).0105

Yang Zhang；Hongyan Shen；Sining Zhang

Low Signal-to-noise Ratio ； Pick-off Point ； First Arrival

International Core Journal of Engineering

8卷5期（2022 / 05 / 01）

817 - 826

英文

Static correction is a key technology in seismic data processing. The effect of static correction depends on the accuracy of first arrivals, but it is often difficult to accurately identify and pick first arrivals in low signal-to-noise ratio areas. Facing the latest requirement of the oilfield company to pick up the first arrival point, KLseisII independently developed the seismic first arrival picking technology based on the energy ratio method, aiming at the massive data in the low signal-to-noise ratio area, it can not only quickly pick up the first arrival time, but also improve the picking efficiency. Moreover, it can realize the direct pick-up of the jump-off point, meet the calculation accuracy of the inversion of the superficial velocity model and the static correction amount, and achieve good results.

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