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Proceedings Papers

Utilising Advanced Digital Technologies to Provide Automated Drilling Riser Fatigue Tracking to Support Condition Based Maintenance

Paul Bohan, Donogh Lang, Dara Williams
Proc. ASME. OMAE2020, Volume 1: Offshore Technology, V001T01A031, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19198
https://doi.org/10.1115/OMAE2020-19198
View Paper titled, Utilising Advanced Digital Technologies to Provide Automated Drilling Riser Fatigue Tracking to Support Condition Based Maintenance
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Topics: Fatigue, Maintenance, Pipeline risers, Inspection, Fatigue damage, Finite element model, Fracture (Materials), Fracture (Process)
Proceedings Papers

Emergency Disconnect and Storm Hang-Off: Reducing Risk for Drilling Risers in Harsh Environments

Conor Gallagher, Dara Williams
Proc. ASME. OMAE2019, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A031, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95213
https://doi.org/10.1115/OMAE2019-95213
View Paper titled, Emergency Disconnect and Storm Hang-Off: Reducing Risk for Drilling Risers in Harsh Environments
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Topics: Emergencies, Pipeline risers, Risk reduction, Storms, American Petroleum Institute, Drilling, Atlantic Ocean, Failure, Modeling, Safety
Proceedings Papers

Calculation of VIV Fatigue of Multi-Pipe Systems

Dara Williams, Feargal Kenny
Proc. ASME. OMAE2017, Volume 5B: Pipelines, Risers, and Subsea Systems, V05BT04A036, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-61089
https://doi.org/10.1115/OMAE2017-61089
View Paper titled, Calculation of VIV Fatigue of Multi-Pipe Systems
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Topics: Fatigue, Pipes, Vortex-induced vibration, Pipeline risers, Risers (Casting), String, Ocean engineering, Currents, Stress, Cements (Adhesives)
Proceedings Papers

Calibration of Stress Transfer Functions for Wellhead Fatigue

Dara Williams
Proc. ASME. OMAE2015, Volume 5B: Pipeline and Riser Technology, V05BT04A019, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41488
https://doi.org/10.1115/OMAE2015-41488
View Paper titled, Calibration of Stress Transfer Functions for Wellhead Fatigue
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Topics: Calibration, Fatigue, Stress, Transfer functions, Fatigue damage, Drilling, Fatigue life, Finite element model, Monitoring systems, Pipeline risers
Proceedings Papers

A Revised Methodology for the Calculation of Wellhead Fatigue due to VIV

Dara Williams, Niall O’Hara, Kenneth Dunne
Proc. ASME. OMAE2015, Volume 5B: Pipeline and Riser Technology, V05BT04A018, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41487
https://doi.org/10.1115/OMAE2015-41487
View Paper titled, A Revised Methodology for the Calculation of Wellhead Fatigue due to VIV
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Topics: Fatigue, Vortex-induced vibration, Pipeline risers, Stress, Top-tensioned risers, Fatigue damage, Damage, Finite element model, Geometry, Ocean engineering
Proceedings Papers

A Revised Methodology for the Calculation of MODU Watch Circles

Conor Quigley, Dara Williams
Proc. ASME. OMAE2015, Volume 5A: Pipeline and Riser Technology, V05AT04A008, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41230
https://doi.org/10.1115/OMAE2015-41230
View Paper titled, A Revised Methodology for the Calculation of MODU Watch Circles
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Topics: Damage, Drilling, Emergencies, Failure, Mobile offshore drilling units, Ocean engineering, Pipeline risers, Steady state, Stress, Transients (Dynamics)
Proceedings Papers

Determination of the Effect of Second Order Motions of Moored MODU on Wellhead Fatigue

Dara Williams, Patrick Ashton
Proc. ASME. OMAE2014, Volume 6A: Pipeline and Riser Technology, V06AT04A007, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-23137
https://doi.org/10.1115/OMAE2014-23137
View Paper titled, Determination of the Effect of Second Order Motions of Moored MODU on Wellhead Fatigue
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Topics: Fatigue, Mobile offshore drilling units, Mooring, Vessels, Pipeline risers, Waves, Water, Fatigue analysis, Fatigue damage, Semi-submersible offshore structures
Proceedings Papers

Optimisation of Conductor System Design to Minimise Wellhead Fatigue Issues

Dara Williams, Kevin Purcell
Proc. ASME. OMAE2013, Volume 4B: Pipeline and Riser Technology, V04BT04A003, June 9–14, 2013
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2013-10829
https://doi.org/10.1115/OMAE2013-10829
View Paper titled, Optimisation of Conductor System Design to Minimise Wellhead Fatigue Issues
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Topics: Design, Fatigue, Optimization, Water, Vessels, Drilling, Drilling rigs, Construction, Semi-submersible offshore structures, Weight (Mass)
Proceedings Papers

Modelling of Marine Riser Tensioner Load Variations and Implications for Minimum Top Tension Settings in Drilling Risers

Conor Gallagher, Dara Williams, Donogh Lang
Proc. ASME. OMAE2012, Volume 3: Pipeline and Riser Technology, 611-619, July 1–6, 2012
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2012-83753
https://doi.org/10.1115/OMAE2012-83753
View Paper titled, Modelling of Marine Riser Tensioner Load Variations and Implications for Minimum Top Tension Settings in Drilling Risers
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Topics: Marine drilling risers, Modeling, Pipeline risers, Stress, Tension, Risers (Casting), Water, Underwater drilling, Vessels, American Petroleum Institute
Proceedings Papers

The Influence of Drilling Rig and Riser System Selection on Wellhead Fatigue Loading

John F. Greene, Dara Williams
Proc. ASME. OMAE2012, Volume 3: Pipeline and Riser Technology, 621-629, July 1–6, 2012
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2012-83754
https://doi.org/10.1115/OMAE2012-83754
View Paper titled, The Influence of Drilling Rig and Riser System Selection on Wellhead Fatigue Loading
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Topics: Drilling rigs, Fatigue, Pipeline risers, Water, Drilling, Vessels, Fatigue life, Design, Drills (Tools), Fatigue damage
Proceedings Papers

The Effects of Modelling Techniques and Data Uncertainty in Wellhead Fatigue Life Calculation

Dara Williams, John Greene
Proc. ASME. OMAE2012, Volume 3: Pipeline and Riser Technology, 631-641, July 1–6, 2012
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2012-83755
https://doi.org/10.1115/OMAE2012-83755
View Paper titled, The Effects of Modelling Techniques and Data Uncertainty in Wellhead Fatigue Life Calculation
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Topics: Fatigue life, Modeling, Uncertainty, Pipeline risers, Fatigue, Fatigue damage, Vortex-induced vibration, Ocean engineering, Stress, Design
Proceedings Papers

Development of an Analytical Tool for the Design of Deepwater Riser/Flowline Thermal Insulation Systems

Dara Williams, Annette Harte, Frank Grealish
Proc. ASME. OMAE2003, Volume 2: Safety and Reliability; Pipeline Technology, 565-573, June 8–13, 2003
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2003-37101
https://doi.org/10.1115/OMAE2003-37101
View Paper titled, Development of an Analytical Tool for the Design of Deepwater Riser/Flowline Thermal Insulation Systems
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Topics: Design, Pipeline risers, Risers (Casting), Thermal insulation, Flow (Dynamics), Pipelines, Water, Algorithms, Ocean engineering, Petroleum industry
Journal Articles

Development of an Analytical Tool for the Design of Deep Water Riser/Flow Line Thermal Insulation Systems

Dara Williams, Annette Harte, Frank Grealish
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. May 2005, 127(2): 96–103.
https://doi.org/10.1115/1.1894403
Published Online: December 10, 2004
View Article titled, Development of an Analytical Tool for the Design of Deep Water Riser/Flow Line Thermal Insulation Systems
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Topics: Computer software, Deformation, Design, Flow (Dynamics), Fluids, Stress, Temperature, Thermal insulation, Water, Creep