公开(公告)号：US08873332B2

公开(公告)日：2014-10-28

申请号：US14185199

申请日：2014-02-20

Applicant: CGG Services SA

Inventor： Fabrice Mandroux ,  Jean-Pierre Degez

IPC: G01V1/38

CPC classification number: G01V1/02 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3826

Abstract: Method and system for improving offset/azimuth distribution. The system includes plural streamers towed by a streamer vessel; a central source towed by the streamer vessel; first and second front sources located in front of the plural streamers along a traveling direction of the streamer vessel; and first and second large offset front sources located in front of the first and second front sources along the traveling direction. The offset distance between the first and second large offset front sources, along a cross-line direction, is larger than an offset distance between the first and second front sources.

公开(公告)号：US10338257B2

公开(公告)日：2019-07-02

申请号：US15210111

申请日：2016-07-14

Applicant: CGG SERVICES SA

Inventor： Risto Siliqi ,  Damien Grenie ,  Vetle Vinje ,  Fabrice Mandroux

IPC: G01V1/38

Abstract: Systems and methods for reducing survey time while enhancing acquired seismic data quality are provided. Data corresponding to plural source lines are acquired simultaneously, using sources at cross-line distance at least equal to their illumination width, with at least one source being towed above a streamer spread.

公开(公告)号：US09529106B2

公开(公告)日：2016-12-27

申请号：US15043661

申请日：2016-02-15

Applicant: CGG SERVICES SA

Inventor： Fabrice Mandroux ,  Alexandre Lenart

IPC: G01V1/38

CPC classification number: G01V1/3808

Abstract: Methods and systems for improving azimuth distribution in a seismic acquisition system are described. A survey acquisition system includes a plurality of streamers towed by a plurality of streamer vessels, including a first streamer vessel and a second streamer vessel and a plurality of sources towed by a plurality of source vessels. The plurality of streamer vessels and plurality of source vessels are configured relative to one another such that the plurality of source vessels are positioned at one or more predetermined inline distances behind a portion of the first streamer vessel and are also positioned at one or more predetermined inline distances in front of a portion of the second streamer vessel. The plurality of streamer vessels and plurality of source vessels are also spaced apart from one another in a cross-line direction.

公开(公告)号：US09494698B2

公开(公告)日：2016-11-15

申请号：US14492765

申请日：2014-09-22

Applicant: CGG SERVICES SA

Inventor： Fabrice Mandroux ,  Jean-Pierre Degez

IPC: G01V1/38 ,  G01V1/02

CPC classification number: G01V1/02 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3826

Abstract: Method and system for improving offset/azimuth distribution. The system includes plural streamers towed by a streamer vessel; a central source towed by the streamer vessel; first and second front sources located in front of the plural streamers along a traveling direction of the streamer vessel; and first and second large offset front sources located in front of the first and second front sources along the traveling direction. The offset distance between the first and second large offset front sources, along a cross-line direction, is larger than an offset distance between the first and second front sources.

Abstract translation: 改善偏移/方位角分布的方法和系统。 该系统包括由拖缆船拖曳的多个拖缆; 由流光船拖曳的中央源; 第一和第二前部源沿着流光船的行进方向位于多个拖缆前面; 以及沿着行进方向位于第一和第二前部源的前面的第一和第二大偏移前部源。 沿着交叉线方向，第一和第二大偏移前部源之间的偏移距离大于第一和第二前部源之间的偏移距离。