公开(公告)号：US20190212461A1

公开(公告)日：2019-07-11

申请号：US15864359

申请日：2018-01-08

Applicant: CGG Services SAS

Inventor： Ivan TORRES TAMANAJA ,  John J. SALLAS

IPC: G01V1/38

CPC classification number: G01V1/3826 ,  G01V1/04 ,  G01V1/135 ,  G01V1/188 ,  G01V2210/1293

Abstract: Computing device, software and method for balancing forces acting on a piston of a marine vibrator towed in a body of water. The method includes estimating with a management system located on a vessel or a controller located on a marine vibrator, a transient pressure disturbance in the body of water; computing, at the controller, a force correction for the piston of the marine vibrator, based on the transient pressure disturbance; and instructing an actuation system of the marine vibrator to apply the force correction to the piston in anticipation of an arrival of the transient pressure disturbance.

公开(公告)号：US20180052247A1

公开(公告)日：2018-02-22

申请号：US15552582

申请日：2015-12-08

Applicant: CGG SERVICES SAS

Inventor： Pierrick DANIEL ,  Ivan TORRES TAMANAJA ,  Alexandre PETRIGNY

IPC: G01V1/38 ,  B63G8/00 ,  B63G8/26

CPC classification number: G01V1/3852 ,  B63B2211/02 ,  B63G8/001 ,  B63G8/14 ,  B63G8/26 ,  B63G2008/004 ,  G01V1/3808 ,  G01V1/3843 ,  G05D1/0088

Abstract: An autonomous underwater vehicle (AUV) for recording seismic signals during a marine seismic survey. The AUV includes a body extending along an axis X and having a front region, a middle region, and a tail region, wherein the middle region is sandwiched between the front region and the tail region along the X axis. The AUV also includes a seismic payload located within the body and configured to record seismic signals. The tail region has a trapezoidal cross-section.