... assessment developer statistics interface spectrum marine energy site assessment offshore technology conference Introduction The success of marine energy (ME) projects depends on low-cost, agile tools for site characterization and monitoring, regardless of the size of the application. ME...

... spectrum spectra determination representation percentile enhancing offshore installation decision-making jonswap spectrum prediction Introduction Offshore operations, including exploration, construction, and support activities, represent a cornerstone of the energy industry. However...

... merging algorithm is devised so that a windsea and one to three swell systems can be provided in a timely matter ( Hulst and Loffredo, 2022 ). renewable energy consistency offshore technology conference wave spectra upstream oil & gas partitioned data spectra spectrum modeling...

... inspection strain gauge fatigue damage probability time series reconstruction fatigue life standard deviation spectrum Background Inspections of offshore assets may be an expensive process. Costs are related to planning, mobilization, inspection, and impact on operations. Undetected damages...

... wave model statistics ocean energy weibull distribution amplitude significant wave height incident wave application spectrum offshore technology conference wind speed equation Introduction Offshore renewable facilities ("offshore renewables") are exposed to environmental conditions...

... inference upstream oil & gas inspection flowline corrosion materials and corrosion riser corrosion prediction estimation measurement data structural member fatigue damage spectrum renewable energy information evaluation posterior distribution offshore technology conference hull...

... and PS is the wave power spectrum. f 1 and f 2 (configurable) define the start and stop frequencies (bandwidth) used when calculating Hm0. It is obvious that the selection of f 1 and f 2 has a considerable influence on the Hm0 values. Furthermore, it is important that the noise...

... spectrum upstream oil & gas equivalent confidence interval high-definition geomagnetic model emag2v3 geomagnetic field bggm information model residual spatial resolution field model trajectory design magnetic measurement hdgmx geomagnetic model offshore technology conference...

... generated using three different methods. The design spectrum determines the seismic hazard of a region. Therefore, it is necessary to use acceleration records compatible with the design spectrum in seismic analyses. In this paper, Scaling, Spectral matching and Stochastic methods were used for comparison...

.... To begin with, we provided a brief introduction on the measuring instrument and field data. Then, seven types of ocean wave spectrum models were compared by with the observed data. The result of calculation showed that the JONSWAP spectrum had a good precision and a wide suitability under various sea...

... fluctuation spectrum over the frequency range of interest. The transfer function defines the relationship between the stress range (∆σ) and a unit pressure fluctuation (∆p) that is used to calculate the fatigue damage. It is assumed that the stress range reaches a maximum when the internal acoustic pressure...

... spectrum wind speed onshore frame structure stress concentration factor vortex vibration fatigue damage frame structure air emission end fixity mean wind speed fatigue life British Standard, EN 1993-3-1 : 2006 , Design of steel structures DNV-RP-C205 , Edition April 2014...

... With oil and gas exploration venturing into more seismic prone regions for global deep water developments, seismic assessment of subsea structures becomes a fundamental part of the design requirements of regulations, industrial codes and standards. This paper demonstrates a response spectrum...

... to a specific generation region on the ocean surface. Wave vector history plots showed that the Trinidad wave field was typically a mixed sea and regional swell field with occasional long-period swell events from distant storms. frequency wave height mooring system swell event spectrum wave field...

... is irregular. Random waves for each sea state and direction lead to different structural responses. These structural responses will be formulated as stresses change in time or frequency domains. Typically, stress spectrum in frequency domain will be used in Spectral fatigue assessment. The methodology...

... Figure 3 The reference site: Apalachicola, Florida [11] OTC-27280-MS 3 Spectral Faitgue Assessment Approach For fatigue assessment of the brace-column connection, the spectral fatigue approach uses the shape of the hot-spot stress spectrum to determine the number of stress cycles. The number of stress...

... is presented to stimulate future developments. us government period range site response analysis short period offshore structure vertical design spectrum vertical motion upstream oil & gas offshore site ground motion water layer design spectra reservoir characterization spectra eurocode...

.... Guza , 1984 . A data adaptive ocean wave directional-spectrum estimator for pitch and roll type measurements , J. Phys. Oceanogr. 14 1800 – 1810 . O'Reilly , W. C. , T. H. C. Herbers , R. J. Seymour , and R. T. Guza , 1996 . A comparison of directional buoy and fixed...

... are imposed at the velocity inlet boundary using Jonswap frequency spectrum and cosine-2s directional spreading function. Wave slamming loads and the structural responses depend on many factors, like sea state, FPSO speed, draft, wave heading angle, local structure etc. In this paper, we have analyzed...

... spectrum reservoir characterization wavelet inversion result offshore technology conference conventional inversion low frequency broadband seismic algorithm broadband inversion low frequency trend interpretation information well control seismic data seismic inversion frequency...