Patent ID: 9354336
Filing Date: 2016-05-31
CPC Classification: G01V

Claim Text:
1. A seismic energy sensor array for performing a microseismic survey, comprising a plurality of seismic energy sensors arranged at sensor locations on or proximate the surface of the earth in a hexagonal pattern; a first set of six lines of equally spaced seismic energy sensors extending radially outward at sixty degree intervals from each of said plurality of seismic energy sensors, said equally spaced seismic energy sensors being positioned on said first set of six lines at vertices of hexagons centered about each of said plurality of seismic energy sensors; and a second set of six lines of equally spaced seismic energy sensors extending radially outward at sixty degree intervals from each of said plurality of seismic energy sensors, said equally spaced seismic energy sensors being positioned on said second set of six lines at vertices of hexagons centered about each of said plurality of seismic energy sensors, said second set of six lines of equally spaced seismic energy sensors being offset by thirty degrees from said first set of six lines of equally spaced seismic energy sensors, said first line of seismic energy sensors and said second line of seismic energy sensors extending from each of said plurality of seismic energy sensors providing twelve directions in which there is a line of equally spaced seismic energy sensors radiating outward from each of said plurality of seismic energy sensors to enable attenuation by spatial filtering of seismic noise reaching each of said plurality of seismic energy sensors.