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Proceedings Papers

Use of DNVGL-RP-C203 for Determining the Fatigue Capacity of Connectors

Anthony Muff, Anders Wormsen, Torfinn Hørte, Arne Fjeldstad, Per Osen, Finn Kirkemo, Kenneth A. Macdonald, Lorents Reinås
Proc. ASME. OMAE2021, Volume 2: Structures, Safety, and Reliability, V002T02A010, June 21–30, 2021
Paper No: OMAE2021-62880
DOI: https://doi.org/10.1115/OMAE2021-62880
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Topics: Fatigue, Fatigue testing, Finite element analysis
Proceedings Papers

Fatigue Life Extension Procedure for Subsea Wells Based on Pressure Testing

Arne Fjeldstad, Torfinn Hørte, Gudfinnur Sigurdsson, Anders Wormsen, Espen Berg, Kenneth Alasdair Macdonald, Lorents Reinås
Proc. ASME. OMAE2021, Volume 4: Pipelines, Risers, and Subsea Systems, V004T04A045, June 21–30, 2021
Paper No: OMAE2021-63003
DOI: https://doi.org/10.1115/OMAE2021-63003
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Topics: Design, Fatigue, Fatigue life, Ocean engineering, Pressure, Pressure testing, Probability, Wells
Proceedings Papers

Benefit From Structural Reliability Analysis in Risk Evaluation of Collapse of Externally Supported Casing

Torfinn Hørte, Arve Bjørset, Dan Tudor Zaharie, Sune Pettersen
Proc. ASME. OMAE2020, Volume 2A: Structures, Safety, and Reliability, V02AT02A055, August 3–7, 2020
Paper No: OMAE2020-18887
DOI: https://doi.org/10.1115/OMAE2020-18887
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Topics: Collapse, Event history analysis, Finite element analysis, Risk assessment
Proceedings Papers

Addressing Uncertainties Within Flow Induced Vibrations in Subsea Piping

Olivier Macchion, Leszek Stachyra, Torfinn Hørte, Charles Renaud-Bezot
Proc. ASME. OMAE2020, Volume 2A: Structures, Safety, and Reliability, V02AT02A068, August 3–7, 2020
Paper No: OMAE2020-18670
DOI: https://doi.org/10.1115/OMAE2020-18670
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Topics: Event history analysis, Fatigue failure, Flow (Dynamics), Statistical distributions, Uncertainty, Underwater pipelines, Vibration
Proceedings Papers

Structural Reliability Analysis Method for Assessing the Fatigue Capacity of Subsea Wellhead Connectors

Torfinn Hørte, Lorents Reinås, Anders Wormsen, Andreas Aardal, Per Gustafsson
Proc. ASME. OMAE2020, Volume 2B: Structures, Safety, and Reliability, V02BT02A035, August 3–7, 2020
Paper No: OMAE2020-18498
DOI: https://doi.org/10.1115/OMAE2020-18498
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Topics: Event history analysis, Fatigue, Ocean engineering
Proceedings Papers

Calculation of Fatigue Capacity for a Subsea Wellhead Connector

Seyed H. Hashemizadeh, Venu Sunkavilli, Torfinn Hørte, Per Osen
Proc. ASME. OMAE2020, Volume 2B: Structures, Safety, and Reliability, V02BT02A036, August 3–7, 2020
Paper No: OMAE2020-19329
DOI: https://doi.org/10.1115/OMAE2020-19329
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Topics: Fatigue, Ocean engineering
Proceedings Papers

Wellhead Fatigue: Benefits of Structural Reliability Analysis Applied to Groups of Wells

Torfinn Hørte, Michael Macke, Andreas Buvarp Aardal, Lorents Reinås, Pål Bjønnes, Erik Kristian Frimanslund
Proc. ASME. OMAE2019, Volume 3: Structures, Safety, and Reliability, V003T02A103, June 9–14, 2019
Paper No: OMAE2019-96214
DOI: https://doi.org/10.1115/OMAE2019-96214
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Topics: Event history analysis, Fatigue, Wells
Proceedings Papers

Casing Collapse Design Using Structural Reliability Analysis for a Subsea Well on the Norwegian Continental Shelf

David Buchmiller, Arve Bjørset, Torfinn Hørte, Sune Pettersen
Proc. ASME. OMAE2018, Volume 11B: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering, V11BT12A030, June 17–22, 2018
Paper No: OMAE2018-78767
DOI: https://doi.org/10.1115/OMAE2018-78767
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Topics: Collapse, Design, Event history analysis, Ocean engineering, Failure, Probability, Testing, American Petroleum Institute, Safety, Temperature
Proceedings Papers

On the Application of Structural Reliability Analysis

Torfinn Hørte, Gudfinnur Sigurdsson
Proc. ASME. OMAE2017, Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium, V009T12A041, June 25–30, 2017
Paper No: OMAE2017-62717
DOI: https://doi.org/10.1115/OMAE2017-62717
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Topics: Event history analysis, Uncertainty, Design, Calibration, Ocean engineering, Probability, Structural engineering, Decision making, Failure, Fatigue
Proceedings Papers

Mooring System Calibration of the Intact Condition, Ultimate Limit State (ULS)

Torfinn Hørte, Siril Okkenhaug, Øivind Paulshus
Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A002, June 25–30, 2017
Paper No: OMAE2017-61529
DOI: https://doi.org/10.1115/OMAE2017-61529
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Topics: Calibration, Mooring, Design, Safety, Reliability, Gulf of Mexico, Chain, Event history analysis, Failure, Probability
Proceedings Papers

Mooring System Calibration of the Damaged Condition, Accidental Limit State (ALS)

Torfinn Hørte, Siril Okkenhaug, Øivind Paulshus
Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A003, June 25–30, 2017
Paper No: OMAE2017-61533
DOI: https://doi.org/10.1115/OMAE2017-61533
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Topics: Calibration, Mooring, Failure, Probability, Design, Tension, Chain, Event history analysis, Gulf of Mexico, Reliability
Proceedings Papers

Summary and Recommendations for Safe Mooring System Design in ULS and ALS

Siril Okkenhaug, Torfinn Hørte, Øivind Paulshus
Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A004, June 25–30, 2017
Paper No: OMAE2017-61534
DOI: https://doi.org/10.1115/OMAE2017-61534
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Topics: Design, Mooring, Reliability, Frequency-domain analysis, Safety, Calibration, Time-domain analysis, Gulf of Mexico, Water, American Petroleum Institute
Proceedings Papers

Wellhead Fatigue Analysis: How Conservative Is Conservative Enough?

Michael Macke, Torfinn Hørte, Kristoffer Høyem Aronsen, Guttorm Grytøyr
Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A057, June 25–30, 2017
Paper No: OMAE2017-61838
DOI: https://doi.org/10.1115/OMAE2017-61838
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Topics: Fatigue analysis, Design, Fatigue, Sensitivity analysis, Uncertainty, Annulus, Cements (Adhesives), Fatigue design, Friction, Safety
Proceedings Papers

Comparison of Global Riser Analysis to Full Scale Measurements on the NCS

Guttorm Grytøyr, Torfinn Hørte, Max Russo, Kathrine Gregersen, Kristoffer H. Aronsen
Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A054, June 25–30, 2017
Paper No: OMAE2017-61638
DOI: https://doi.org/10.1115/OMAE2017-61638
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Topics: Pipeline risers, Stress, Waves, Ocean engineering, Fatigue, Tension, Uncertainty, Damage, Drilling, Drills (Tools)
Proceedings Papers

Wellhead Fatigue: Effect of Directional and Annual Variation in Weather for a Sequence of Drilling Operations

Torfinn Hørte, Guttorm Grytøyr, Massimiliano Russo, Marcus Hofstad, Lorents Reinås
Proc. ASME. OMAE2015, Volume 1: Offshore Technology; Offshore Geotechnics, V001T01A052, May 31–June 5, 2015
Paper No: OMAE2015-41944
DOI: https://doi.org/10.1115/OMAE2015-41944
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Topics: Drilling, Fatigue, Waves, Fatigue damage, Uncertainty, Design, Seas, Statistics, Drilling rigs, Event history analysis
Proceedings Papers

Wellhead Fatigue, Effect of Uncertainty in Directional Variation and Environmental Conditions for Operations of Short Duration

Torfinn Hørte, Guttorm Grytøyr, Massimiliano Russo, Marcus Hofstad, Lorents Reinås
Proc. ASME. OMAE2014, Volume 1B: Offshore Technology, V01BT01A040, June 8–13, 2014
Paper No: OMAE2014-24482
DOI: https://doi.org/10.1115/OMAE2014-24482
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Topics: Fatigue, Uncertainty, Fatigue analysis, Fatigue life, Statistics, Electromagnetic scattering, Waves, Drilling, Seas, Wells
Proceedings Papers

Prediction of Mooring Line Tensions for Hurricane Conditions in the Gulf of Mexico

Jan Mathisen, Torfinn Hørte
Proc. ASME. OMAE2014, Volume 4A: Structures, Safety and Reliability, V04AT02A039, June 8–13, 2014
Paper No: OMAE2014-23446
DOI: https://doi.org/10.1115/OMAE2014-23446
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Topics: Gulf of Mexico, Mooring, Tension, Design, Drilling, Response surface methodology, Semi-submersible offshore structures, Significant wave heights, Time-domain analysis, Uncertainty
Proceedings Papers

A Probabilistic Metocean Model for Mooring Response in Gulf of Mexico Hurricanes

Jan Mathisen, Torfinn Hørte
Proc. ASME. OMAE2013, Volume 2A: Structures, Safety and Reliability, V02AT02A056, June 9–14, 2013
Paper No: OMAE2013-10735
DOI: https://doi.org/10.1115/OMAE2013-10735
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Topics: Gulf of Mexico, Mooring, Tension, Wind, Significant wave heights, Waves, Event history analysis, Inspection, Probability, Reliability
Proceedings Papers

Benefit of Measurements and Structural Reliability Analysis for Wellhead Fatigue

Torfinn Hørte, Massimiliano Russo, Michael Macke, Lorents Reinås
Proc. ASME. OMAE2013, Volume 1: Offshore Technology, V001T01A050, June 9–14, 2013
Paper No: OMAE2013-10932
DOI: https://doi.org/10.1115/OMAE2013-10932
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Topics: Event history analysis, Fatigue, Uncertainty, Probability, Failure, Fatigue life, Life extension, Ocean engineering, Offshore structures, Annulus
Proceedings Papers

Wellhead Fatigue Analysis Method: Benefits of a Structural Reliability Analysis Approach

Torfinn Hørte, Lorents Reinås, Jan Mathisen
Proc. ASME. OMAE2012, Volume 1: Offshore Technology, 113-124, July 1–6, 2012
Paper No: OMAE2012-83141
DOI: https://doi.org/10.1115/OMAE2012-83141
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Topics: Event history analysis, Fatigue analysis, Stress, Failure, Probability, Uncertainty, Life extension, Ocean engineering, Offshore structures, Reliability