Full Content is available to subscribers

Subscribe/Learn More  >

Concept Design of Two Permanently Coupled Floaters for Production and Storage of Oil and LNG

[+] Author Affiliations
Erik ter Brake, Narve Oma, Wenche Rettedal

StatoilHydro, Stavanger, Norway

Paper No. OMAE2009-79133, pp. 117-126; 10 pages
  • ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology
  • Honolulu, Hawaii, USA, May 31–June 5, 2009
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4341-3 | eISBN: 978-0-7918-3844-0
  • Copyright © 2009 by ASME


The combination of oil, LNG and LPG present at offshore fields may require a multi purpose production and storage facility that can produce the different hydrocarbons. In order to achieve feasibility, the required vessel size to handle multiple hydrocarbons is significant. HSE, technical and economical considerations led to the investigating of using two floaters to split the LNG / LPG storage from the production vessel. This paper deals with the intention to deploy two vessels in tandem: One producing unit that has storage capacity for produced oil and one barge that stores the LNG and LPG. Challenges to be met in the design of the tandem moored vessels relate to relative motions between the vessels: The relative motion is restricted by the transfer lines for products and the flexibility of a gangway that enables safe passage between the vessels. The mechanism that connects the two vessels should be capable of withstanding the forces to keep the vessels at the intended distance without growing into enormous proportions itself. This paper provides the technical background and the feasibility of the concept to connect two large barges in benign conditions. The concept has been developed based on existing tower mooring principles that is combined with a spread moored mooring arrangement. Additionally the paper discusses the sensitivity of the connector and mooring design on the overall performance.

Copyright © 2009 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In