公开(公告)号：US20240134079A1

公开(公告)日：2024-04-25

申请号：US18377237

申请日：2023-10-04

Applicant: PGS Geophysical AS

Inventor： Martin Widmaier ,  Ashish Misra ,  Manuel Beitz

IPC: G01V1/38 ,  G01V1/28 ,  G01V1/30 ,  G01V1/34

CPC classification number: G01V1/3843 ,  G01V1/282 ,  G01V1/303 ,  G01V1/345

Abstract: A marine seismic survey comprises towing a first source and a first streamer spread having a length L behind a first vessel. Sensors in the streamer spread record signals from the first source over a range of offset distances X to X+L. A second source is towed behind a second vessel that does not tow a streamer spread. Sensors in the streamer spread record signals from the second source over a range of offset distances A+L to A+2L. Sensors in the streamer spread do not record signals over a range of offset distances X+L to A+L from any active seismic sources used in the marine seismic survey.

公开(公告)号：US20240230941A9

公开(公告)日：2024-07-11

申请号：US18377237

申请日：2023-10-05

Applicant: PGS Geophysical AS

Inventor： Martin Widmaier ,  Ashish Misra ,  Manuel Beitz

IPC: G01V1/38 ,  G01V1/28 ,  G01V1/30 ,  G01V1/34

CPC classification number: G01V1/3843 ,  G01V1/282 ,  G01V1/303 ,  G01V1/345

Abstract: A marine seismic survey comprises towing a first source and a first streamer spread having a length L behind a first vessel. Sensors in the streamer spread record signals from the first source over a range of offset distances X to X+L. A second source is towed behind a second vessel that does not tow a streamer spread. Sensors in the streamer spread record signals from the second source over a range of offset distances A+L to A+2L. Sensors in the streamer spread do not record signals over a range of offset distances X+L to A+L from any active seismic sources used in the marine seismic survey.