公开(公告)号：US10353098B2

公开(公告)日：2019-07-16

申请号：US14308889

申请日：2014-06-19

Applicant: WESTERNGECO L.L.C.

Inventor： James Edward Martin ,  Ahmet Kemal Özdemir ,  Bent Andreas Kjellesvig ,  Ali Ozbek

IPC: G01V1/36 ,  G01V1/38

Abstract: A technique includes spatially filtering a signal that is derived from a seismic acquisition. The filtering is associated with a filter length, and the filtering includes varying the filter length with frequency. The filtering may be used in connection with adaptive noise attenuation, which is applied to decomposed subbands. Furthermore, the filtering may be applied during the reconstruction of the signal from the subbands.

公开(公告)号：US10509139B2

公开(公告)日：2019-12-17

申请号：US13847384

申请日：2013-03-19

Applicant: WESTERNGECO L.L.C.

Inventor： Ahmet Kemal Ozdemir ,  Bent Andreas Kjellesvig

IPC: G01V1/36 ,  G01V1/38

Abstract: A technique includes using a filter having filtering parameters based at least in part on a dispersion curve of at least one vibration mode of a streamer to filter a measurement acquired by at least one sensor of the streamer and using results of the filtering to suppress vibration noise present in the measurement.