3/16/2024 0 Comments Concrete Platform Draugen![]() Being concrete these platforms not surprisingly are heavy. It had then assessed many different platform solutions since the second appraisal well in August 1985. The platforms have been installed in a range of water depths, from 82 m (269 ft) in the case of Sleipner A to 303 m (994 ft) for Troll A. The unique Draugen platform person Finn Harald Sandberg Norwegian Petroleum Museum Shell declared the Draugen field commercial in May 1987. The Draugen field produces oil primarily from two reservoirs. Shell is yet to resume operations at the facility. The Draugen oil field was shut down in February 2010 due to cold weather and extreme winds. The average crude oil production at the Draugen oil field in 2009 stood at 63,000bpd. ![]() This includes the accuracy of integration of stresses to obtain force resultants as basis for the general design, the accuracy of extrapolation of force resultants to critical cross-sections and the limitations in the code checking in general. The base also provides the foundation for three or four shafts or in the case of the Draugen platform, just one on which the topsides rest. The Draugen platform was installed in 1993. The paper further describes the post-processing of the results from the finite element analysis. The paper describes the philosophy for element selection, fineness in model, incorporation of built in stresses through the construction phases and the different load cases applied on the model. This paper addresses the finite element modeling of a large offshore structure for verification purposes, based upon the experience gained with the Draugen more » GBS platform for A/S Norske Shell. The Draugen platform’s topsides the part which rests on the concrete gravity base structure (GBS) is based on an integrated design. Discovered in 1984, the Draugen field has been developed with a concrete fixed facility and integrated topside. Since taking over the operatorship of the field in 2018, OKEA has worked on reducing downtime and optimizing production. Further, special analyses are carried out for prediction of response from earthquake, wave induced dynamic action and geometric non-linear action. The Draugen field is located in the southern part of the Norwegian Sea. Oil would be recovered from a wider area by drilling two subsea producers tied back to the field centre and two water injection wells. These include predictions of the force resultants in the structure using FE analysis with up to 1.5 million degrees of freedom, code checking of FE results using special dedicated postprocessing software, local capacity evaluations in areas where the linear FE analysis is known to be inaccurate. Submitted in September 1987, the plan for development and operation (PDO) of Draugen envisaged a concrete platform with a single support shaft (monotower) and four production wells. Offshore concrete structures are today designed using the best available techniques.
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