... of the offloading operation. mooring system criteria flng side spread mooring system applied upstream oil & gas simulation environment condition lng carrier west africa computation numerical computation offshore technology conference subsea system marine loading arm operability side-by-side...

... Abstract Computational Fluid Dynamics (CFD) tools have progressed greatly in the past decades in such a manner that they have become a recurring tool during the workflow of an engineering project. In the specific case of Marine and Offshore Engineering, these tools are more and more used...

... Abstract Permanent floating offshore facilities can be subjected to substantial environmental loads in the Gulf of Mexico, especially during the hurricane season. This paper focuses on the procedures required for the accurate computation of the floating system kinematics based on the output...

... in heave cancels at a given wave length depending on the geometry of the column and pontoon arrangement. Fig 1 riser designer natural period upstream oil & gas displacement geometry computation arrangement model test cancellation period offshore technology conference motion response...

... Abstract In the framework of the studies on the DeepStar Theme Structures for deepwater in the Gulf of Mexico, contractors and research institutes have carried out series of pre-model test computations. The DeepStar Theme Structures are a turret moored FPSO, a classic SPAR and a standard TLP...

..., are associated with the primary pressure system around the sailing vessel which acts upon the moored ship. In this paper some of the aspects which play a role in effects due to passing ships will be treated. In order to do so, two computational methods developed by the first author to predict the low frequency...

... current field contribution johan wicher coefficient initial position simulation otc 12086 moored tanker sway model test computation resistance coefficient viscous reaction force low-frequency viscous reaction force head current surge direction coupling term equation Copyright...

... water. For deep to ultra deep water computer programs are valuable design tools. In this paper for the study of the mooring system in 1200 m use have been made of the computer programs. Before starting the study for 1200 m water depth first by means of the computer program DYNFLOAT a validation study...

... (in case of polyester ropes). The model tests demonstrated the favourable offsets provided by a TMS. Apart from offset (including slowly varying motions), there were no large differences in motions characteristics between a TMS and a CMS. The comparison to computations did also reveal the difficulty...

... search scheme shear surface circular shear surface infinite slope procedure calculation upstream oil & gas seafloor safety slope stability center point minimum factor lower factor lateral distance computation otc 10829 number 3 stability grid variation procedure...

... some critical limitations. The computations must be performed stage by stage, neglecting the transient effects induced by the jacking and ballast operations. During the deck mass transfer, the contact loads are not included. Built on the COB-PI experience, it was decided to develop a more realistic...

... control system algorithm otc 8854 coefficient stephen bultema johan wicher thruster-hull interaction subsea system computation upstream oil & gas weather condition artificial intelligence dynamic positioning system hydrodynamic research thruster-thruster interaction thruster...

... Abstract With the increase in knowledge in computer-based simulation methods and recent advances in high-speed computing, solutions to complex fluid-structure interaction problems, such as transient wave impact on fixed and floating structures, can now be studied in more detail. Numerical...

... for shallower water depth applications. To improve the understanding of and the insight in the reliability and integrity in the application in the deep water mooring systems, numerical design tools can be used. As the numerical design tool a by model tests validated computer program based on the fully...

... computation head wave seismic data attenuation travel time refraction velocity continental shelf reservoir characterization top layer geologic structure boundary acoustic basement quality factor upstream oil & gas east sea frequency equation refraction event refraction...

... is to compute D,,, the steady statefatigue damage rate that results from wind at the critical wind speed, V,, which causes maximum vibration response. This damage rate is then multiplied bythe fraction of the year that the wind is expected to blow at or near to thecritical velocity for that member. [n...

... is that the method will develop into an international industry standard. Introduction A user friendly computer program called VAC (Voyage Acceleration Climate) was developed. The ship motion calculations are based on striptheory, using 2-D diffraction theory to solve the hydrodynamic potential per section...

... pipelines were damaged during the storm. The report included preliminary estimates of the proximate causes of the damages but included no computations or detailed analysis of the various loads which were placed on the affected pipeline segments. The locations of damaged pipelines are illustrated on Figure 1...

... computations of the coupled chain-mooring-tanker system the wave frequency (WF) and low frequency (LF) turret motions and chain/turret forces are simultaneously determined. The model tests were carried out on scale 82.5. The results of the computations are compared with the results of the model tests using...

... dynamic system of restraint. Comparison of measured and computed drift forces in irregular waves show increasing divergence between predictions based on 3-dimensional potential theory and results of experiments with increasing severity of the irregular sea conditions. Comparison between computed...