Patent ID: 8924158
Filing Date: 2014-12-30
Classification: E21B,G01D,G01H,G01V

Abstract:
1. A seismic acquisition system, comprising: a seismic sensor system to detect seismic signals and seismic noise generated during a survey of a subterranean structure, the seismic sensor system including a distributed optical sensor that comprises a generally continuous length of optical fiber without discrete sensors for positioning outside the subterranean structure for detection of the seismic noise; a processing subsystem; and an interrogation subsystem configured to: output data corresponding to the backscattered light to the processing subsystem to determine a characteristic of the subterranean structure, wherein the output data includes a measurement of the detected seismic noise, wherein the processing subsystem uses the measurement of the detected seismic noise to at least reduce components of seismic noise that are present in the detected seismic signals.