Patent ID: 7646672
Filing Date: 2010-01-12
Classification: G01V

Abstract:
1. A method for converting 3D dual sensor towed streamer data into noise-attenuated data, comprising: converting 3D dual sensor towed streamer data, representative of earth's subsurface and acquired by deploying a plurality of seismic sensors proximate an area of the earth's subsurface to be evaluated, the seismic sensors generating at least one of an electrical and optical signal in response to seismic energy, into scaled seismic data with aliasing noise attenuated, comprising: combining the transformed pressure records and the scaled vertical particle velocity records to separate upgoing and downgoing wavefield components; and inverse-transforming the separated upgoing and downgoing wavefield components back to the time-space domain, wherein the inverse-transformed upgoing wavefield component is the noise-attenuated data.