Device and method for denoising ocean bottom data

A computing device configured to denoise marine seismic data recorded with first and second seismic sensors, the computing device comprising:

• an interface configured to receive first seismic data recorded with the first sensor in a time-space domain and second seismic data recorded with the second sensor in the time-space domain, wherein the first and second seismic data are recorded at the same locations underwater;
• and
• a processor connected to the interface and configured to:
• calculate with a processor models of the first and second seismic data in a transform domain that is different from the time-space domain,
• calculate in the transform domain an energy related to a down-going energy based on the models of the first and second seismic data,
• determine a noise in the transform domain corresponding to the second seismic data based on the calculated energy,
• reverse transform the noise from the transform domain into the time-space domain, and
• denoise the second seismic data by subtracting the noise in the time-space domain from the second seismic data.

A non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by a processor, implement instructions for denoising marine seismic data recorded with first and second seismic sensors, the instructions comprising:

• receiving first seismic data recorded with the first sensor in a time-space domain;
• receiving second seismic data recorded with the second sensor in the time-space domain, wherein the first and second seismic data are recorded at the same locations underwater;
• calculating with a processor models of the first and second seismic data in a transform domain that is different from the time-space domain;
• calculating in the transform domain an energy related to a down-going energy based on the models of the first and second seismic data;
• determining a noise in the transform domain corresponding to the second seismic data based on the calculated energy;
• reverse transforming the noise from the transform domain into the time-space domain;
• and
• denoising the second seismic data by subtracting the noise in the time-space domain from the second seismic data.