As the tendency of the offshore oil industry is going deeper and further, the subsea pipeline is exposed under tougher condition combining lower temperature with higher hydrostatic pressure. The severe condition creates a challenge towards flow assurance, which often results in a high cost solution. Reducing the cost while providing a qualified insulation performance is of great significance to deepwater development. For ultra-deepwater beyond 1500m, single-wall pipe usually fails to meet the flow assurance requirements or requires a huge amount of insulation material. Pipe-in-pipe configuration can provide a good insulation performance but comes with a high cost associated. Sandwich pipe is a new concept composed of two concentric steel pipes separated by a cementitious composite annulus that provides a combination of high structural strength with thermal insulation. It is reported to be a promising alternative for both flexible and rigid conventional pipes in applications for long distance pipelines. In order to further investigate its feasibility in deep waters, a subsea production system with depth at 2200m was used as a case study for a comprehensive evaluation of insulation performance of the sandwich pipe, including both steady-state and shut-in working conditions. For a comparative study, scenarios using single-wall pipe (SW), pipe-in-pipe (PIP) and flexible pipe (FP) were also considered separately. The results showed that (i) sandwich-pipe performs better in steady-state but worse in between shut-in and the restart period (ii) sandwich-pipe with larger diameter performs better than it with smaller diameter. The reasons for the sandwich pipe behavior were discussed and suggestions to improve the performance are presented.
Skip Nav Destination
ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
June 17–22, 2018
Madrid, Spain
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5124-1
PROCEEDINGS PAPER
Insulation Performance of Sandwich Pipe
Jiankun Yang,
Jiankun Yang
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Search for other works by this author on:
Segen F. Estefen,
Segen F. Estefen
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Search for other works by this author on:
Marcelo Igor Lourenço Souza,
Marcelo Igor Lourenço Souza
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Search for other works by this author on:
Yuxi Wang,
Yuxi Wang
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Search for other works by this author on:
Cheng Hong
Cheng Hong
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Search for other works by this author on:
Jiankun Yang
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Segen F. Estefen
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Marcelo Igor Lourenço Souza
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Yuxi Wang
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Cheng Hong
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Paper No:
OMAE2018-77180, V005T04A039; 8 pages
Published Online:
September 25, 2018
Citation
Yang, J, Estefen, SF, Souza, MIL, Wang, Y, & Hong, C. "Insulation Performance of Sandwich Pipe." Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Pipelines, Risers, and Subsea Systems. Madrid, Spain. June 17–22, 2018. V005T04A039. ASME. https://doi.org/10.1115/OMAE2018-77180
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Double Pipe Ensures Reliable Insulation of Offshore Pipelines
J. Energy Resour. Technol (June,1988)
Optimization of Pipe Insulation Volume for a Subsea Production System
J. Offshore Mech. Arct. Eng (August,2020)
Development of an Analytical Tool for the Design of Deep Water Riser/Flow Line Thermal Insulation Systems
J. Offshore Mech. Arct. Eng (May,2005)
Related Chapters
Handy Facts Regarding Types of Thermal Insulation
Hydraulics, Pipe Flow, Industrial HVAC & Utility Systems: Mister Mech Mentor, Vol. 1
Pressure Testing
Process Piping: The Complete Guide to ASME B31.3, Third Edition
Threshold Functions
Closed-Cycle Gas Turbines: Operating Experience and Future Potential