Noise suppression on geophone data using microphone measurements

Ayon K. Dey, Robert R. Stewart, Laurence R. Lines, and Henry C. Bland

ABSTRACT

Noise in the shallow part of a seismic section is very problematic. Quite often air- wave noise overwhelms data that is useful and important. Some types of this noise that consistently cause problems in imaging shallow seismic surveys are air-coupled ground roll, air blast, ground-coupled air blast, and wind noise. In this study, we attempt to use microphone recordings of air-waves (i.e. wind) to suppress air-wave noise on geophone data. We conducted a four-component (3C geophone and a microphone at each receiver station) seismic line in the Pike's Peak heavy oil field, Saskatchewan. Initial investigations find a strong air-wave generated by the vibrator source.

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