In order to design a drilling riser system that meets the operational requirements, it is industry practice to use analytical tools to predict the riser and wellhead fatigue damage. This paper focuses on the comparison between the analysis and field measurements for both the drilling riser and wellhead vortex induced vibration (VIV) fatigue damage, during a recent loop current event in the Gulf of Mexico. The field data, which includes the drilling riser configuration, riser tensioner setting, and loop current data, were considered in this comparison. As one of the key contributors to VIV fatigue, the loop current, was measured from a survey vessel in the field during the blowout preventer (BOP) latched and retrieval period. The analysis utilized the VIV program SHEAR7 V4.6 to calculate the fatigue damage for both the drilling riser and wellhead system. The field measured acceleration data from the installed monitoring system was converted to the fatigue damage by transfer function methods. Key findings and conclusions are summarized to improve future analysis predictions of drilling riser and wellhead fatigue damage.
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ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2015
St. John’s, Newfoundland, Canada
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5648-2
PROCEEDINGS PAPER
A Practical Drilling Riser and Wellhead Vortex Induced Vibration Fatigue Comparison Between Analysis and Field Measured Data
Elizbar B. Kebadze,
Elizbar B. Kebadze
BP Exploration Operating Company Ltd, Sunbury, UK
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Shankar Sundararaman,
Shankar Sundararaman
2H Offshore, Houston, TX
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Zhen Li
Zhen Li
2H Offshore, Houston, TX
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Michael Long Ge
BP America, Houston, TX
Jomon Kannala
BP America, Houston, TX
David Cain
BP America, Houston, TX
Elizbar B. Kebadze
BP Exploration Operating Company Ltd, Sunbury, UK
Shankar Sundararaman
2H Offshore, Houston, TX
Carlyn Krapf
2H Offshore, Houston, TX
Zhen Li
2H Offshore, Houston, TX
Paper No:
OMAE2015-42069, V002T08A032; 8 pages
Published Online:
October 21, 2015
Citation
Ge, ML, Kannala, J, Cain, D, Kebadze, EB, Sundararaman, S, Krapf, C, & Li, Z. "A Practical Drilling Riser and Wellhead Vortex Induced Vibration Fatigue Comparison Between Analysis and Field Measured Data." Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: CFD and VIV. St. John’s, Newfoundland, Canada. May 31–June 5, 2015. V002T08A032. ASME. https://doi.org/10.1115/OMAE2015-42069
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