Patent ID: 9709688
Date: 2017-07-18
CPC Classifications: G01V

Claim:
1. A method comprising: seismic surveying with first, second, third and fourth seismic sensors on a streamer towed by a marine vessel, wherein the first and the second seismic sensors are pressure sensors, and the third and fourth seismic sensors are acceleration sensors; wherein the first and second seismic sensors each comprise a piezo element responsive to pressure and acceleration and a backside that faces radially inwardly from the piezo element toward a center of the streamer, wherein the backsides are spaced apart from one another by a distance; the third and fourth seismic sensors each have a piezo element responsive to acceleration and a backside that faces radially inwardly from the piezo element toward a center of the streamer in a direction different from one another; electrically connecting the first and second pressure sensors to one another to combine signals from the first seismic sensor and the second seismic sensor, the combining comprising; subtracting an acceleration signal of the first seismic sensor from an acceleration signal of the second seismic sensor to thereby substantially cancel out acceleration when the acceleration signals are combined so as to produce in aggregate a pressure signal.