Global And Japanese Firm Jointly Offer Offshore Production Systems

Global Marine Development Inc.

of Irvine, Calif., and Nippon Kokan K.K. of Tokyo, Japan, have announced an agreement to jointly develop and market offshore oil and gas production systems.

NKK will fabricate the structures in its shipyards on the basis of engineering provided by GMDI.

Global Marine Development Inc.

is a wholly owned subsidiary of Global Marine Inc. of Los Angeles The BID (Base and Independent Deck) platform significantly reduces time for construction and cost of on-site installation for both short and long-life fields.

For short-life fields, the BID concept offers even more savings since the deck can be independently removed for re-use and the base can be recovered for use in another location.

The concept is simple. The base structure and the deck are constructed separately. Outfitting of the deck is accomplished in the yard. The base structure is then towed to the site in its upright position and set on the sea floor using its own ballasting system.

The outfitting deck is brought to the site on a barge and positioned over the base. The barge is then ballasted down and the deck is transferred to the base columns.

The deck is then raised to the design elevation by means of removable jacks. Once in place, the deck is welded to the columns.

C o n s t r u c t i o n time is saved through the totally independent construction of the base and the deck, permitting concurrent fabrication and outfitting. Installation time is also saved since heavy-lift equipment is not required.

In addition, the deck arrives at the site completely outfitted, which eliminates extensive at-sea installation time.

Maritime Reporter Magazine, page 31, May 1981

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.