公开(公告)号：US20200333493A1

公开(公告)日：2020-10-22

申请号：US16955181

申请日：2018-12-18

Applicant: PGS Geophysical AS

Inventor： Okwudili Orji ,  Walter F. Söllner ,  David O'Dowd

IPC: G01V1/38

Abstract: Non-impulsive source actuation can include actuating a plurality of non-impulsive sources such that each one of a plurality of common midpoint (CMP) bins receives a desired aggregate signal exposure. Each one of the plurality of non-impulsive sources exposes each one of the plurality of CMP bins to a different part of the desired aggregate signal exposure at different times during the survey.

公开(公告)号：US12066585B2

公开(公告)日：2024-08-20

申请号：US17153259

申请日：2021-01-20

Applicant: PGS Geophysical AS

Inventor： David O'Dowd

IPC: G01V1/38 ,  B63B21/66 ,  G01V1/20

CPC classification number: G01V1/3808 ,  B63B21/66 ,  G01V1/201 ,  G01V1/3826

Abstract: A method includes: towing sources in a wide-tow source survey configuration; actuating at least one of the sources to create a signal; detecting the signal with a first receiver of a first plurality of streamers; and detecting the signal with a second receiver of a second plurality of streamers, wherein: the second plurality of streamers are interspersed with streamers from the first plurality of streamers in the port outer region and in the starboard outer region. A system includes: sources in a wide-tow source survey configuration and coupled to the survey vessel; a first plurality of streamers comprising a regular streamer spread and coupled to the survey vessel; and a second plurality of streamers coupled to the survey vessel, wherein: the second plurality of streamers are interspersed with streamers from the first plurality of streamers in the port outer region and in the starboard outer region.