Research on the DSF for float-over of super-heavy topside in the South China Sea

Author

Jinghua Tao ; Xu Jia ; Jinlin Hou ; Jianhua Tao

Author_Institution

Res. Inst., China Nat. Offshore Oil Corp., Beijing, China

fYear

2014

fDate

7-10 April 2014

Firstpage

1

Lastpage

6

Abstract

As a unique structural system in the float-over installation, DSF supports topside weight in the load-out and tow process, and cushions collision loads of the topside and the barge in the mating process. Based on the float-over installation of LW3-1CEP topside, the paper makes deeply studies on DSF from many aspects, such as general layout, span change, DSU layout, special cap limit, space bound, member optimization, weight control and so on. And then this paper discusses a new type of DSF system with greater capability to support topside weight of up to 27,000 metric tons, meeting functional requirements of super-heavy topside float-over installation. The research of the new type of DSF will be a guide and reference for future heavier topside float-over installation.

Keywords

boats; offshore installations; structural engineering; DSF system; DSU layout; LW3-1CEP topside; South China sea; barge; cushion collision loads; load-out process; mating process; offshore installation; structural system; super-heavy topside float-over installation; tow process; Boats; Layout; Legged locomotion; Measurement; Optimization; Structural beams; Weight control; DSF; cushioning; float-over; new type; offshore installation; super-heavy topside; supporting;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2014 - TAIPEI

Conference_Location

Taipei

Print_ISBN

978-1-4799-3645-8

Type

conf

DOI

10.1109/OCEANS-TAIPEI.2014.6964597

Filename

6964597