Numéro : 2633 - Year : 2013
Submarine gas blowout: tests / calculations comparison
Youri KIRIOW, DORIS ENGINEERING – Service R&D
François PETRIE, OCEANIDE
For Oil & Gas production in sea, failure of a wellhead or of a riser may cause:
• a loss of buoyancy on the production facilities due to gas blowout ;
• a toxic zone due to the gas plume rising up to the surface of the sea;
• a risk of explosion and/or fire .
Thus, it is required to be able to assess when, where, and how much gas could reach the surface of the sea in case of such event.
With this main objective, a Joint Industry Project has been started by Alyotech, in partnership with Doris Engineering, Océanide, Cèdre, Ecole Centrale de Marseille and Armines, with the support of Total E&P Recherche Développement, GDF Suez, Technip, Entrepose Contracting and Subsea 7 France.
In particular :
• Océanide has performed a model tests campaign with an air blowout located at the bottom of its main basin called BGO FIRST.
• Doris Engineering has built a numerical C.F.D (Computational Fluid Dynamics) model of these air blowouts, and compared the results of the calculation to the experimental results obtained by Océanide.
The objective of the present document is to present this work performed by Océanide and Doris Engineering, with the scientific support of Ecole Centrale de Marseille.
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