Patent ID: 9091783
Filing Date: 2015-07-28
Classification: G01V

Abstract:
1. A method comprising: receiving divergence data from a divergence sensor and seismic data from seismic sensors, wherein the divergence sensor and seismic sensors are part of a sensor assembly, and wherein the seismic data includes an inline propagating wavefield and a crossline propagating wavefield; determining a first product of inline horizontal slowness and the inline propagating wavefield using forward and inverse tau-p transform or F-K transform in an inline direction; determining a second product of crossline horizontal slowness and the crossline wavefield using forward and inverse tau-p transform or F-K transform in the crossline direction; and computing, by one or more processors, a calibration term by taking a ratio of the divergence data to a sum of the first and the second products, wherein the calibration term includes a first parameter that is related to a characteristic of the sensor assembly, and a second parameter that is related to a characteristic of a near-surface subterranean medium.