Patent Number: 8,818,763

Title: Seismic acquisition and filtering

Abstract: Designing a multi-dimensional Finite Impulse Response FIR digital filter to attenuate the coherent noise while preserving reflection signals on seismic data, particular in land seismics, includes computing filter coefficients to minimize an l-norm function of differences between a response of a filter with the computed coefficients and a predetermined response which attenuates signals outside a predetermined range of slowness relative to signals within the predetermined range of slowness. Additional constraints may be imposed on the coefficients to improve the attenuation of signals outside the predetermined range of slowness of the desired reflection signals, and/or to improve uniformity within the desired range.

Inventors: Ji; Ying (Cambridge, GB), Kragh; Julian Edward (Cambridge, GB), Ozbek; Ali (Cambridge, GB)

Assignee: Schlumberger Technology Corporation

International Classification: G01V 3/00 (20060101); G01V 1/00 (20060101)

Expiration Date: 8/26/12018