一种可靠的强噪声三分量微地震数据初至拾取方法

程一鸣, 李怀良, 庹先国, 王耀彬, 王亚娟, 沈统

A reliable first arrival picking method for high-noise three component microseismic data

Yi-Ming CHENG, Huai-Liang LI, Xian-Guo TUO, Yao-Bin WANG, Ya-Juan WANG, Tong SHEN

表1 不同随机噪声下100次合成3C微地震数据的初至拾取误差统计

Table 1 First arrival picking error statistics of 100 synthetic 3C microseismic data under different random noise

随机噪声 最大误差/ms 拾取数据误差占比/% 误差小于等于0.25 ms 误差小于等于0.5 ms 60% 0.25 97 100 80% 0.25 95 100 90% 0.50 92 97 100% 0.75 90 95