Dynamic simulation of 12 streamers changeable towed system of seismic survey vessel

Author

Zhao Yan ; Chenggang Liu ; Yunsheng Mao

Author_Institution

Key Lab. of High Performance Ship Technol., Wuhan Univ. of Technol., Wuhan, China

fYear

2015

fDate

25-28 June 2015

Firstpage

792

Lastpage

796

Abstract

The 12 streamers towed system is the main exploration equipment of seismic survey vessel. Based on the model of Ablow and Schechter´s finite difference method, this paper presents a numerical scheme to get the dynamic properties of towed system which the length of cables is changeable in a uniform flow by adding the virtual mass point. Then the dynamic simulation of the seismic survey vessel towed 12 cables turning and releasing streamers has been given. The shape and tension of each streamer can be predicted by this scheme. This research can provide technological support for achieving the streamer´s accurate positioning rapidly and ensure the safety of geophysical prospecting equipments.

Keywords

oceanographic equipment; seismic waves; underwater equipment; Ablow and Schechter finite difference method; changeable towed system; dynamic properties; dynamic simulation; geophysical prospecting equipments; seismic survey vessel; streamers; Marine vehicles; Mathematical model; Numerical models; Shape; Turning; Underwater cables; Vehicle dynamics; 12 steamers towed system; changeable length; dynamic simulation; seismic survey vessel;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Information and Safety (ICTIS), 2015 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4799-8693-4

Type

conf

DOI

10.1109/ICTIS.2015.7232051

Filename

7232051