The use of semi-submersible platforms has become increasingly popular due to its ability to carry large topsides and the possibility for quayside integration. With recent exploration successes in ultra-deepwater fields of the Gulf of Mexico, major oil and engineering companies are keen to look for a safe, reliable and cost-effective dry-tree option to maximize the value of deepwater field developments. Dry-tree semi-submersible (DTS) emerges as such an option to overcome the water depth and size limits imposed by TLP and Spar, respectively, and enables the platform to carry a large well array and payloads in ultra-deep water. This paper presents the offshore industry’s multi-year efforts to mature two promising semi-submersible platform concepts that can accommodate long-stroke dry-tree risers and have large drilling and production capabilities. Results of technology development and qualification will be highlighted with details on hull performance and hull/riser interfaces. Key structural, mooring and riser analyses and scaled model test results including the long-stroke riser tensioning system will be presented. Remaining challenges that need to be overcome to advance the DTS concepts from “technology acceptance” to “project readiness” will also be discussed.
Skip Nav Destination
ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
June 8–13, 2014
San Francisco, California, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4549-3
PROCEEDINGS PAPER
The State of Dry-Tree Semi-Submersible Platforms for Deepwater Gulf of Mexico
Philip Poll
Philip Poll
Houston Offshore Engineering, Houston, TX
Search for other works by this author on:
Ming-Yao Lee
Chevron, Houston, TX
Jack Zeng
Kvaerner, Houston, TX
Philip Poll
Houston Offshore Engineering, Houston, TX
Paper No:
OMAE2014-23236, V007T12A002; 7 pages
Published Online:
October 1, 2014
Citation
Lee, M, Zeng, J, & Poll, P. "The State of Dry-Tree Semi-Submersible Platforms for Deepwater Gulf of Mexico." Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. Volume 7: Ocean Space Utilization; Professor Emeritus J. Randolph Paulling Honoring Symposium on Ocean Technology. San Francisco, California, USA. June 8–13, 2014. V007T12A002. ASME. https://doi.org/10.1115/OMAE2014-23236
Download citation file:
35
Views
Related Proceedings Papers
Related Articles
Profiles of Two JOMAE Associate Editors (A Continuing Series)
J. Offshore Mech. Arct. Eng (October,2021)
Some Observations on the Heave Behavior of Spar Platforms
J. Offshore Mech. Arct. Eng (November,1998)
Linear and Nonlinear Approach of Hydropneumatic Tensioner Modeling for Spar Global Performance
J. Offshore Mech. Arct. Eng (February,2010)
Related Chapters
Common Compliant Platforms
Offshore Compliant Platforms: Analysis, Design, and Experimental Studies
Regulatory and Class Considerations Introduction
Ageing and Life Extension of Offshore Facilities
Production Riser Life Extension – A Class Perspective
Ageing and Life Extension of Offshore Facilities