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Keywords: time series
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31757-MS
... hurricane ida offshore technology conference max wind speed wind speed time series maximum wind speed Introduction Before becoming a tropical depression, Ida caused flooding in Venezuela, resulting in deaths and damage to multiple homes. Around Jamaica, Ida was named Tropical Depression 9...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-32022-MS
... analysis. Slugging fatigue consists of first running the flow assurance software Olga which produced time series of mixture density at each riser node. This spatial and temporal density data was used to compute gravity loads due to slug flow (centrifugal and Coriolis forces were found to be negligible...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31789-MS
.... The measured time series at the strain gauges are then used to reconstruct the linear combination of modal responses which gives at those locations the same values on the 3D FE model as measured. The modes are defined as the response of the structure on selected load cases and a specific methodology...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31850-MS
... quality floating production system calculation strain gauge measurement fpso floating production storage and offloading stress statistics statistics relative wave sensor deck level floating production storage & offloading inspection strain gauge fatigue damage probability time series...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31183-MS
... s > h ) ⋅ p ( Z w > z ) Probabilistic independence corresponds to C = 1, while dependence increases with C. The analysis of time series of H mo at point P2 and Zw measured by a tidal gauge located close to the site at Fontvieille over the period 2000-2013...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31049-MS
... sets recorded at various sites, mostly covering calm weather conditions. To calculate non-directional wave power spectra, a Fast Fourier Transform (FFT) is applied to the mean Doppler time series ( Miros, 2017 ). The resulting water particle velocity spectra is averaged and transformed to wave...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30922-MS
... result time series Introduction Abstract Abstract The objective of this paper is to introduce a new analysis methodology for assessment of riser fatigue due to slugging. Under certain flow regimes, a multiphase (oil-gas-water) flow can result in slug flow, in which a sequence of relatively...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30489-MS
... presented as three-hour time series at 0.15 second increments. The general approach for prediction of extreme responses was to take the peak values (maxima or minima) during the three-hour simulation, and then use a Weibull III statistical analysis to determine the most-probable-extreme value. Operating...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29234-MS
... are presented. Both quantities are sampled at 1-minute intervals. Time series of aft and fore drafts are also available on a daily basis. These measurements span one decade. A systematic scan of the wind speed time series has been performed to identify, based on the World Meteorological Organization definition...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29642-MS
...OTC-29642-MS Real-Time Cleaning of Time-Series Data for a Floating System Digital Twin Puneet Agarwal and Scot McNeill, Stress Engineering Services Copyright 2019, Offshore Technology Conference This paper was prepared for presentation at the Offshore Technology Conference held in Houston, Texas...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27782-MS
... spectrum into 6 OTC-27782-MS frequency-direction regions that represent waves likely to originate from distinct sea and swell generation events. Sample results appear in Figure 3. Figure 3 Wave spectrum partitioning sample from Mooring 29, Deployment 1. Lower panel depicts Hs time series for sample period...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27551-MS
... to statistically stationary environmental phenomena (e.g. Figure 2) is different. The offsets and mooring tensions are more likely to exhibit multiple peaks throughout the environmental event associated with low frequency and wave frequency cycles. OTC-27551-MS 3 Figure 2 Example wind time series based on NPD...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27520-MS
.... For the data used in the present work, three modes were found to be required. For this paper, a 1,000 year simulated history of Loop and eddy positions and configurations was produced using the LoopSim program [4]. This program produces long time series of Loop and eddy histories that are statistically...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27599-MS
... with the N-year return period hurricane only metocean; 2) reconstructing a long time series of combined LCE and hurricane data and developing N-year return period criteria from this. The first approach is straightforward; however, it proved to be too conservative, while the second approach reflects a more...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26962-MS
... coefficient subsea system complex amplitude production semi fpso mooring system artificial intelligence upstream oil & gas identification standard error equation realization time series coefficient drift force approximation Berthelsen , P. A. , Baaholm , R. , PÁkozdi , C...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27089-MS
...). synthetic tropical cyclone database cyclone wave height maximum wind speed return period wind field wave field contingency planning time series cyclone track database metocean design criteria tropical cyclone database offshore technology conference artificial intelligence tropical cyclone...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27075-MS
... orthogonal function coordinate system upstream oil & gas time series modal amplitude riser loop current mode amplitude wellhead hindcast data eof mode bin artificial intelligence Horizon Marine , "Gulf of Mexico Loop Current Eddies ,’ http://www.horizonmarine.com/loop-current...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-26012-MS
... salinity glider time series circulation upstream oil & gas glider data remotely operated vehicle offshore subsea system seaglider tm storm eddy lazarus loop current offshore technology conference platform eddy OTC-26012-MS Autonomous Underwater Vehicle Collaborations to Improve...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25694-MS
... characteristic spectra period range water column vangriesheim continental slope upstream oil & gas alongshore current offshore technology conference fluctuation oscillation offshore angola sanha ctw frequency range reservoir characterization hycom khz adcp time series...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25335-MS
... are discussed. critical location plastic deformation upstream oil & gas steel catenary riser deformation time series offshore technology conference pipe deepwater steel catenary riser compression solid element metals & mining element model plastic strain compressive loading riser...

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