公开(公告)号：EP3403119A1

公开(公告)日：2018-11-21

申请号：EP17700237.5

申请日：2017-01-10

申请人： PGS Geophysical AS

发明人： TONNESSEN, Rune ,  OSCARSSON, Mattias D. C.

IPC分类号： G01V1/38

CPC分类号： G01V1/3808 ,  G01V1/04 ,  G01V1/3861

摘要： Marine geophysical surveys with distributed seismic sources. At least some of the example embodiments are methods including performing a marine geophysical survey by: towing a plurality of high-frequency sources spread along a width of an array of sensors, the high-frequency sources having a first source density with respect to the width; and towing a plurality of mid-frequency sources spread along the width, the mid-frequency sources have a second source density with respect to the width, the second source density lower than the first source density; and towing a low-frequency source along the width; activating the high-frequency, mid-frequency, and low-frequency sources.