Three-component seismic data processing and interpretation method for seismic while fracking

A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

• generating a standard format seismic dataset of sensor readings obtained from a three-component sensor comprising an x-component, a y-component, and a z-component of wave motions of guided waves propagated along a wellbore;
• adding, to the standard format seismic dataset, coordinates and recording times corresponding to the sensor readings;
• generating, using the standard format seismic dataset of sensor readings, synchronized seismic data from the standard format seismic dataset by synchronizing seismic recording times with fracture treatment times;
• generating quality-controlled synchronized seismic data by removing, from the synchronized seismic data, dead traces and abnormal data samples;
• performing a time-frequency analysis on the quality-controlled synchronized seismic data, including performing short-time Fourier transforms to analyze variations of Fourier spectra over time;
• extracting, at different time samples and based on the time-frequency analysis, resonance frequencies from each frequency spectrum, including increasing amplitudes of weak frequency components of the quality-controlled synchronized seismic data using a slide frequency window, including applying automatic gain control (AGC) to frequency spectra, stacking the frequency spectra with different intervals, and picking a frequency interval with a highest-stacking energy as an estimated resonance frequency;
• and
• presenting, to a user, interpretation results based on the extracting.

A computer-implemented system, comprising:

• one or more processors;
• and
• a non-transitory computer-readable storage medium coupled to the one or more processors and storing programming instructions for execution by the one or more processors, the programming instructions instructing the one or more processors to perform operations comprising:
• generating a standard format seismic dataset of sensor readings obtained from a three-component sensor comprising an x-component, a y-component, and a z-component of wave motions of guided waves propagated along a wellbore;
• adding, to the standard format seismic dataset, coordinates and recording times corresponding to the sensor readings;
• generating, using the standard format seismic dataset of sensor readings, synchronized seismic data from the standard format seismic dataset by synchronizing seismic recording times with fracture treatment times;
• generating quality-controlled synchronized seismic data by removing, from the synchronized seismic data, dead traces and abnormal data samples;
• performing a time-frequency analysis on the quality-controlled synchronized seismic data, including performing short-time Fourier transforms to analyze variations of Fourier spectra over time;
• extracting, at different time samples and based on the time-frequency analysis, resonance frequencies from each frequency spectrum, including increasing amplitudes of weak frequency components of the quality-controlled synchronized seismic data using a slide frequency window, including applying automatic gain control (AGC) to frequency spectra, stacking the frequency spectra with different intervals, and picking a frequency interval with a highest-stacking energy as an estimated resonance frequency;
• and
• presenting, to a user, interpretation results based on the extracting.