The Nosong-Bongawan North field is located in Block B310 in Offshore Sabah Area, approximately 75km North of Labuan and approximately 30km North of SUPG-B, Malaysia. This paper discussed subsea pipeline of the Nosong-Bongawan field development using Subsea Pro Simulation to determine wall thickness and stress and ANSYS to determine the deformation due to buckling of pipeline. Simulation results were compared with the actual operating data.
Departement of Aeronautic, Automotive and Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
Ocean and Aerospace Research Institute (OCARI), Indonesia
In employing blade element momentum (BEM) method to compute the performance of a turbine propeller, the lift and drag coefficients of propeller element/airfoil are needed. The coefficients are usually obtained from model experiment. Unfortunately, the model experiment can only be conducted for small angle of attack until stall mode. Beyond stall mode, Viterna extrapolation method is commonly used. The method is used to predict the lift and drag coefficients from stall angle to 90o. Beyond that range, besides Viterna method, original flat plate theory assumption can also be adopted. The present study compares the lift and drag coefficients extrapolation using Viterna method and flat plat theory. NACA2415 airfoil shape is used for computation. The computation formulas and procedures are presented and important parameter effect to the coefficients are shown and explained.
Marine Engineering Department, Engineering Faculty, Hasanuddin University, Makassar Indonesia
The production of oil and gas in Brazil is keeping going as long as there is demand worldwide, same for the development of subsea system technology. The Roncador Field has been leading the technological challenges of Petrobras in ultra-deep water -1500 to 1900 meters- which covers an area of approximately 110 square kilometers. This paper discussed pressures and stress of subsea pipelines on Roncador Field using Subsea Pro Simulation to analyze the wall thickness and ANSYS to analyze the stress distribution along the pipe.
Department of Aeronautics, Automotive and Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
Ocean and Aerospace Research Institute (OCARI), Indonesia
