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Keywords: estimation
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35364-MS
... geotechnical property estimation, respectively. After describing the accelerated workflow in detail in the next section, we apply it to the public Borssele site within the Dutch Offshore Wind Farm Zone for performance analysis. Workflow Description Fig. 1 illustrates the proposed workflow...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35274-MS
...). The operation of this equipment brings a peculiarity that must be considered in the estimation of loads applied at the conductor. After cementing the surface casing, this system requires a preloading step, which involves unloading the weight of the cement job stinger to activate a tool coupled to the running...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32304-MS
... Abstract The objective of this study is to develop a data-driven machine learning based tool to estimate the FPSO topsides weight. The data were collected from public sources including IHS, news and magazines, covering world-wide active FPSO geographic locations, topsides weights...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31853-MS
... of the worst performing pipes. collapse pressure collapse rating individual pipe joint reliability design rating correlation pipe trl probability series system upstream oil & gas th percentile individual pipe percentile estimation strength specimen procedure confidence interval...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-32068-MS
... and the resultant casing collapse failure, and 2) casing fatigue. These cyclic loads to the casing structure often result in detrimental fatigue failures at essential casing joints and welds. Wrong cyclic strain calculations will lead to false estimation of casing fatigue life. This, in turn, would lead to abuse...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31865-MS
... Abstract The evaluation and estimation of in-situ stress regimes are vital in many subsurface engineering processes such as borehole stability in deep well drilling, hydraulic fracturing design, water injection for pressure maintenance, geothermal recovery, and geological carbon sequestration...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31063-MS
... procedure estimation 3-hour simulation assumption requirement extreme mooring tension estimation shape parameter maximum tension offshore technology conference flng main property Statistical approach adopted for evaluation of extreme line tension is one of those areas where the requirements...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31273-MS
... usually to high costs when the actual deposit thickness and type is not known. Several different methods have been proposed for the detection and estimation of the deposit build-up. These methods include Gamma-ray tomography ( Johansen 2015 ; Benson 2007 ), density mapping ( Benson 2007 ), radioisotope...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30977-MS
... transportation accuracy wind energy bayesian 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...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31220-MS
... conditions and WTG power analysis with estimation of the amount of the energy to be stored; preliminary design of the ESS; preliminary cost estimation. The study was carried out by using a digital tool developed by Moss Maritime in the context of a Proof of Concept based on Floating energy storage. The tool...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30917-MS
... electromagnetic pipe inspection tool with multiple transmitter and receiver arrays was designed to accurately estimate the individual wall thicknesses of up to five nested pipes. The tool uses an axis-symmetric forward model to invert for wall thicknesses, among other pipe parameters. However, in cases where...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30690-MS
... the model such that the model behaves like the true physical system when subjected to the same inputs. To tune the model, we must know (measure) the inputs and the outputs. A fundamental requirement for parameter estimation is that the response variables are observable from the measurements...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30758-MS
... modeling for frictional pressure losses. Surface BackPressure (SBP) and StandPipe Pressure (SPP) data, measured in real-time, allows the calibration of frictional pressure losses and an estimation of BHP more accurately. An estimation of SPP is calculated based on integration from the measured SBP back...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29390-MS
... The estimation of casing wear from USIT or Caliper logs requires a proper evaluation of the shape of the tubular inner surface prior to casing wear. In the absence of a viable baseline log, this shape must be deduced through analytical means. Manufacturing deviations from perfect circularity...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29270-MS
... Abstract This paper summarizes an on-going effort by SNAME OC-8 CFD Task Force to provide guidelines on wind-load estimation by CFD simulation. The intention of the guidelines is to help the industry to obtain reliable and accurate estimations of wind load on offshore floating facilities using...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29495-MS
... Abstract This paper describes the conceptual design and estimates the CAPEX breakdown of a novel floater type for offshore wind turbines: the Reduced-Draft Spar (RDS). This floater, which resembles a GBS although it is in essence a spar, has excellent seakeeping at a reduced draft. Aiming...

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