Objective
Smart-Leg is float over method for deck installation and deck removal by using conventional cargo barge and specific equipment instead of heavy derrick barge. Thus the Smart-Leg Method should lead to drastic reduction in deck installation costs and should contribute to safer offshore operations for staff and equipment.
The Smart-Leg Concept has been validated with a 1/40 physical scale model within the THERMIE project OG./287/94 (Step. 1). In the continuity of the Step 1, the aim of the proposed project is to demonstrate the technical and economical advantages of the Smart-Leg Method through the installation of a 4500 ton 6 legs deck at Ekpe Field.
The shockless floatover occured on June, 3rd 1997. It has been a highly successful operation.
Smart-Leg STEP 2 Open Sea Testing is the second step of the SMART-LEG Project which first phase has been achieved by December 1995.
1) INNOVATIVE TECHNOLOGY
The Smart-Leg concept involves new technology for existing applications and new applications. New technology
The Smart-Leg Method is shockless: deck installation in open sea is performed while the impact of shocks caused by waves are eliminated by the method itself. Moreover, the Jacking Method is passive by using energy of waves to lift deck.
Applications:
The Smart-Leg method extends the limit for deck installation: heavier weight, shallower waterdepth, more severe environmental conditions. Moreover, the Smart-Leg Method will contribute to a substantial reduction for offshore oil and gas exploitation costs: by cutting down the installation costs and by saving time in production start-up.
2) THE CONEXT IN WHICH THE TECHNOLOGY IS OPERATING
This new technology will operate in the offshore platforms installation market. Potential users are the oil and gas Companies-operating offshore. The competitors are of a limited number and the competition is very keen and active. Thus, it is essential to develop new methods and equipments in order to reduce operation costs and to remain competitive.
The weight of the decks comtemplated is in the range 2 000/25 000 tons or even more, which covers a large part of the market.
3) ECONOMIC ASPECTS
The method proposes drastic reduction of costs for installation of offshore platforms together with enhanced safety. Saving apply on installation itself as Heavy Lift Vessels are no longer required. Marine installation spread will consist of cargo barge and tugs much cheaper to mobilize and operate than the HLV.
Saving apply also on the hook-up costs as the heavy decks can be installed in one single piece only, thus eliminating the work for the interconnection of the various modules (hook-up).
The method applies also for platform removal.
Topic(s)
Call for proposal
Data not availableFunding Scheme
DEM - Demonstration contractsCoordinator
92754 Nanterre
France