Automatic picking of microseismic event first arrival based on FAST-AIC method

The accuracy of micro-seismic location can be effectively improved by accurately picking the first arrival of microseismic events. As the large amount of microseismic data, to improve the computing efficiency of micro-seismic signals, based on the traditional VAR-AIC algorithm a fast AIC algorithm (FAST-AIC) is proposed.The FAST-AIC method and the traditional VAR-AIC algorithm are used to process the same micro-seismic data. With the increase of the number of sampling points, the FAST-AIC method is more effective than the VAR-AIC method. When the data length exceeds 6500 sampling points, the calculation efficiency is improved more than 1000 times.