Attenuation of guided waves using polarization filtering

A non-transitory computer-readable storage medium having executable code stored thereon for producing attenuated seismic data from seismic data generated from a seismic receiver station configured to sense seismic signals originating from a seismic source station, the seismic receiver station comprising a geophone and a hydrophone, the executable code comprising a set of instructions that causes a processor to perform operations comprising:

• obtaining raw seismic data from the seismic receiver station, the raw seismic data comprising a hydrophone component and a vertical geophone component;
• scaling the raw seismic data to produce scaled seismic data comprising a scaled hydrophone component and a scaled vertical geophone component;
• applying polarization filtering within a frequency band defined by a first velocity and a second velocity to the scaled seismic data, the polarization filtering based on an ellipticity ratio, such that the polarization filtering attenuates guided waves in the scaled seismic data;
• and
• producing attenuated seismic data from the application of polarization filtering, the attenuated seismic data having attenuated guided waves as compared to the raw seismic data.

A system, comprising:

• a seismic source station;
• a seismic receiver station configured to sense seismic signals originating from the seismic source station, the seismic receiver station comprising a geophone and a hydrophone;
• a seismic data processor;
• a non-transitory computer-readable storage memory accessible by the seismic data processor and having executable code stored thereon for producing attenuated seismic data from seismic data generated from the seismic receiver station, the executable code comprising a set of instructions that causes the seismic data processor to perform operations comprising:
• obtaining raw seismic data from the seismic receiver station, the raw seismic data comprising a hydrophone component and a vertical geophone component;
• scaling the raw seismic data to produce scaled seismic data comprising a scaled hydrophone component and a scaled vertical geophone component;
• applying polarization filtering within a frequency band defined by a first velocity and a second velocity to the scaled seismic data, the polarization filtering based on an ellipticity ratio, such that the polarization filtering attenuates guided waves in the scaled seismic data;
• and
• producing attenuated seismic data from the application of polarization filtering, the attenuated seismic data having attenuated guided waves as compared to the raw seismic data.

A computer-implemented method for producing attenuated seismic data from raw seismic data generated from a seismic receiver station configured to sense seismic signals originating from a seismic source station, the seismic receiver station comprising a geophone and a hydrophone, the method comprising:

• obtaining raw seismic data from the seismic receiver station, the raw seismic data comprising a hydrophone component and a vertical geophone component;
• applying a polarization filtering to the raw seismic data within a frequency band defined by a first velocity and a second velocity and based on a tilt angle, such that the polarization filtering attenuates guided waves in the scaled seismic data;
• and
• producing attenuated seismic data from the application of polarization filtering, the attenuated seismic data having attenuated guided waves as compared to the raw seismic data.

A non-transitory computer-readable storage medium having executable code stored thereon for producing attenuated seismic data from seismic data generated from a seismic receiver station configured to sense seismic signals originating from a seismic source station, the seismic receiver station comprising a geophone and a hydrophone, the executable code comprising a set of instructions that causes a processor to perform operations comprising:

• obtaining raw seismic data from the seismic receiver station, the raw seismic data comprising a hydrophone component and a vertical geophone component;
• applying a polarization filtering to the raw seismic data within a frequency band defined by a first velocity and a second velocity and based on a tilt angle, such that the polarization filtering attenuates guided waves in the scaled seismic data;
• and
• producing attenuated seismic data from the application of polarization filtering, the attenuated seismic data having attenuated guided waves as compared to the raw seismic data.

A system, comprising:

• a seismic source station;
• a seismic receiver station configured to sense seismic signals originating from the seismic source station, the seismic receiver station comprising a geophone and a hydrophone;
• a seismic data processor;
• a non-transitory computer-readable storage memory accessible by the seismic data processor and having executable code stored thereon for producing attenuated seismic data from seismic data generated from the seismic receiver station, the executable code comprising a set of instructions that causes the seismic data processor to perform operations comprising:
• obtaining raw seismic data from the seismic receiver station, the raw seismic data comprising a hydrophone component and a vertical geophone component;
• applying a polarization filtering to the raw seismic data within a frequency band defined by a first velocity and a second velocity and based on a tilt angle, such that the polarization filtering attenuates guided waves in the scaled seismic data;
• and
• producing attenuated seismic data from the application of polarization filtering, the attenuated seismic data having attenuated guided waves as compared to the raw seismic data.