Systems and methods for correcting distributed acoustic sensing data

A computer system, comprising:

• a processor;
• and
• a memory encoded with instructions, which, when executed by the processor, causes the processor to:
• receive a seismic dataset with a plurality of initial seismic phase picks and a plurality of traces;
• interpolate the plurality of initial seismic phase picks to account for the plurality of traces;
• cross-correlate each of the interpolated initial seismic phase picks using the plurality of traces as reference traces to generate a set of corrected phase picks for each of the linearly interpolated initial seismic phase picks;
• calculate a probability density function for each set of corrected phase picks;
• and
• select a peak of each probability density functions as accurate seismic phase picks.

A non-transitory machine-readable storage medium encoded with instructions, which when executed by a processor, cause the processor to:

• receive a seismic dataset with a plurality of initial seismic phase picks and a plurality of traces;
• apply amplitude gain control (AGC) to the seismic dataset;
• cross-correlate each of plurality of initial seismic phase picks using the plurality of traces as reference traces to generate a set of corrected phase picks for each of the plurality of initial seismic phase picks;
• calculate a probability density function for each set of corrected phase picks;
• and
• select a peak of each probability density functions as accurate seismic phase picks.