... to address these limitations. machine learning simulation monitoring system prediction assessment requirement artificial intelligence riser fatigue assessment input data sensor flexible riser life extension fatigue damage upstream oil & gas neural network seastate flexible riser...

... ABSTRACT Assessment of the expected stand-by in offshore operations is performed by analysing the metocean conditions of the area and comparing them with the operative limits defined by static and dynamic installation analyses. Generally, seastate hindcast time series, nowadays available...

...), where dynamic response plays a larger role, and should be adopted for fixed structures as well if dynamic amplification becomes significant (Barltrop and Adams, 1991). Usually these analyses are used to simulate a single seastate for a short period of time while hundreds of seastates must be considered...

... standard single peaked methods is determined and the annual energy production estimates are reduced by 16.1%. canada partition ocean energy resource assessment spectral energy production significant wave height variance density spectrum seastate histogram wave energy converter spectrum...

...) and the dominant direction of waves. energy conservation characteristic extreme seastate variation wave height fatigue assessment wave climate wave period joint distribution sable field seastate fatigue damage possible solution windsea assumption wave power climate change climate change...

... spectrum seastate hs 1 operation tp 8 topside leg floatover installation Printer needs this much top space or margin above the paper title on this page 1! Model Testing Capabilities for Verification of Floatover Operations A. Magee, N.Z.M. Yunos, V.J. Kurian Civil Engineering Department Universiti...

... Abstract Considering the wave and current effect, the platform motion and the large deformation of drilling riser, a dynamical model is constructed in this paper, which can simulate the dynamic response of the riser in complex seastates. The wave spectrum is achieved with P-M (Pierson...

... responses in medium and low seastates, potentially leading to difficult challenges and high costs for riser fatigue design, in particular, near riser hang-off and seafloor touch-down regions. The coupled analysis thus becomes necessary for a feasible and cost effective solution for the riser. spar...

... response of the semi-sub at low wave periods compounds the wave loading effect on the riser while the moonpool of the drill-ship shields the riser from the wave zone and modifies the response of the riser. wave zone wellhead drillship fatigue life rig stiffness seastate tensioner system...

... having a very low transfer seastate (the seastate in which a jack-up can safely transfer from the standing mode to the floating mode or vice-versa) which is commonly 1.5m. This has caused large wastage of offshore time by waiting for the weather window in various projects executed so far in the North...

... probability liquified natural gas gas monetization safety factor midstream oil & gas freight & logistics services static capacity seastate magnitude lng form sorm method model test data assessment equivalent static pressure Reliability-Based Sloshing Assessment of Containment Systems...

... height transformation riser keel motion seastate significant wave height sensor vessel motion Approach to Validate Deepwater Riser Design: Challenges in Selecting an Effective Spar Motion Monitoring System Prahlad R. Enuganti, Mike Campbell 2H Offshore Inc. Houston, Texas, USA Yiannis...

... transportation seastate Reliability-based Methodology for Sloshing Assessment of Membrane LNG Vessels E. Gervaise, P-E. de Sèze, S. Maillard Gaztransport & Technigaz Saint-Rémy-lès-Chevreuse, France ABSTRACT Sloshing is a large scale phenomenon involving some very small scale effects. Indeed, overall volume...

... 8.4 2.2 38 100-yr Loop Current 9 8.4 2.2 38 10-yr LCE (a) 9 8.4 2.2 38 (a) for analysis of the TLP with one tendon removed SeaState 10 00 -y r H ur ric an e W av e 10 00 -y r H ur ric an e W in d 10 0- yr H ur ric an e W av e 10 0- yr H ur ric an e W in d 10 -y r H ur ric an e (a ) 10 -y r W in te r S...

... tlp concept seastate wave basin model test gom application upstream oil & gas hurricane model test tlp requirement stability subsea system quayside integration fourstar tlp FOURSTAR: A Novel Battered Column TLP Concept Neil Williams, Homayoun Heidari, Sean Large, Nagaraju Rangaraju...

... a revised numerical technique that enables the time efficient execution of a large number of simulations. The parameters are investigated for a number of multidirectional seastates and their individual contribution is assessed in terms of their criticality to the overall system. A comprehensive...

... AND RISER SYSTEMS General The TLP is moored by its tendons, but the Spar and barge are usually spread moored by a taut mooring system to reduce the vessel excursions. assembly platform spar buoyancy seastate peak stress region vessel type upstream oil & gas riser deepwater dry tree...

... catenary moored platform simplification seastate riser rio de janeiro fatigue behaviour taut-leg moored platform amplitude sensitivity study platform slow drift motion variation ABSTRACT Fatigue collapse verification comprises a very important limit state in offshore structures design...

... to shed light on the general effects of dependence and uncertainty on extreme value estimation. seastate data significant wave height annual maximum distribution gumbel model statistical uncertainty annual maxima annual data event model dependence wave height storm seastate standard...

... be applied to characterize other sources of model uncertainty; e.g., by statistically comparing actual and hindcast wave heights. fp 0 machine learning prediction simulation sinusoidal profile regression statistics seastate upstream oil & gas wave population largest wave accuracy crest...