Enhancement of seismic data

A device 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 first time-frequency spectrum of a first seismic trace from an original seismic dataset received from a plurality of sensors, the original seismic dataset comprising a plurality of seismic signals of a wellsite subterranean region;
• generating a second time-frequency spectrum of a second seismic trace from a signal to noise ratio filtered seismic dataset, wherein the second seismic trace corresponds to the first seismic trace, and wherein the signal to noise ratio filtered seismic dataset suppresses a noise component of the original seismic dataset;
• calculating a difference between the first time-frequency spectrum and the second time-frequency spectrum to generate an initial noise estimate in the first seismic trace;
• characterizing the initial noise estimate as White Gaussian Noise (WGN);
• calculating, based on the characterization of the initial noise estimate, a third time-frequency spectrum of a refined noise estimate;
• constructing, based on the first time-frequency spectrum, the second time-frequency spectrum, and the third time-frequency spectrum, a time-frequency mask (TFM);
• and
• using the TFM to generate a fourth time-frequency spectrum of an output trace that integrates noise masked data from the first seismic trace and the second seismic trace.

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

• generating a first time-frequency spectrum of a first seismic trace from an original seismic dataset received from a plurality of sensors, the original seismic dataset comprising a plurality of seismic signals of a wellsite subterranean region;
• generating a second time-frequency spectrum of a second seismic trace from a signal to noise ratio filtered seismic dataset, wherein the second seismic trace corresponds to the first seismic trace, and wherein the signal to noise ratio filtered seismic dataset suppresses a noise component of the original seismic dataset;
• calculating a difference between the first time-frequency spectrum and the second time-frequency spectrum to generate an initial noise estimate in the first seismic trace;
• characterizing the initial noise estimate as White Gaussian Noise (WGN);
• calculating, based on the characterization of the initial noise estimate, a third time-frequency spectrum of a refined noise estimate;
• constructing, based on the first time-frequency spectrum, the second time-frequency spectrum, and the third time-frequency spectrum, a time-frequency mask (TFM);
• and
• using the TFM to generate a fourth time-frequency spectrum of an output trace that integrates noise masked data from the first seismic trace and the second seismic trace.