公开(公告)号：US20170269248A1

公开(公告)日：2017-09-21

申请号：US15458329

申请日：2017-03-14

Applicant: CGG SERVICES SAS

Inventor： Timothee MOULINIER ,  Thomas MENSCH

IPC: G01V1/38

Abstract: A method for steering a marine seismic acquisition system by determining a steering point associated with towed seismic equipment is described. Coverage boundaries for a current line in a seismic survey and for an already acquired adjacent line in the seismic survey are computed. Cross-line distances between the coverage boundary for the current line and the coverage boundary for the adjacent line are computed based on a set of specifications for the seismic survey. A steering point associated with towed seismic equipment is determined based on the computed cross-line distances. A least one steering command for a steering element in the marine seismic acquisition system is generated based on the determined steering point.

公开(公告)号：US20170363760A1

公开(公告)日：2017-12-21

申请号：US15528210

申请日：2015-12-04

Applicant: CGG SERVICES SAS

Inventor： Thomas MENSCH ,  Damien GRENIE ,  Nicolas BOUSQUIE

IPC: G01V1/38

CPC classification number: G01V1/3808

Abstract: A multi-vessel seismic data acquisition system having a first vessel towing a streamer containing a plurality of seismic receivers and a pair of seismic sources along a first shot line. At least one additional vessel tows only a single seismic source. Each additional single seismic source is spaced from the pair of seismic sources an offset distance in at least one of an inline direction and a crossline direction to the first shot line to define a first bin grid having a first bin size for the first vessel and a second bin grid having a second bin size for each additional vessel.