公开(公告)号：US09921321B2

公开(公告)日：2018-03-20

申请号：US14914443

申请日：2014-08-25

Applicant: SHELL OIL COMPANY

Inventor： Boris Nikolaevich Kuvshinov ,  Mikhail Garievich Danilouchkine ,  Robert Van Es ,  Theodericus Johannes Henricus Smit ,  Horng Jye Hwang

IPC: G01V1/38 ,  G01V1/137 ,  G01V1/00

CPC classification number: G01V1/005 ,  G01V1/137 ,  G01V1/3808

Abstract: Seismic pulses are emitted are emitted with consecutive time intervals that follow a pattern described by several Golomb rulers, wherein at least two of the Golomb rulers have at least four marks, such that pair-wise time intervals between seismic pulse emissions are different, to distinguish seismic reflections stemming from different seismic pulses and/or seismic sources from each other. This allows executing seismic surveys with several simultaneously operated seismic source arrays, thereby reducing the survey cost. In a marine environment the seismic sources may be air-gun arrays towed by one or more vessels, and the method can be also applied onshore.