Critical collapse pressure of flexible risers in deep/ ultra-deep water: a literature review

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

In this paper, the recent advances on collapse studies of flexible risers are reviewed. Collapse refers to radial buckling of flexible riser caused by excessive hydrostatic pressure. Since there is a constant push from oil & gas industry to extend deepwater exploitation beyond 3000m, hydrostatic collapse has been one primary challenge facing the riser operators. Riser collapse is a complex phenomenon related to material properties, geometry of the pipe and its overall surface topography and, therefore, leads to inherent unpredictability of the exact collapse pressure. Collapse prediction approaches of flexible risers have been developed for decades, yet a comprehensive review on their predictive capabilities, efficiency and drawbacks is lacking. This paper concentrates on these collapse predictive techniques of flexible riser in ultra-deepwater fields and the current gaps that exist in offshore technology, aiming to help develop the current anti-collapse design and be a baseline for future utilization of flexible risers in deeper water expansion.
Original languageEnglish
Title of host publicationProceedings of the 22th International Conference on Material Handling, Construction and Logistics (MHCL’17)
Place of PublicationBelgrade, Serbia
PublisherFME Belgrade
Number of pages6
Publication statusPublished - 2017
EventMHCL 2017: 22th International Conference on Material Handling, Constructions and Logistics - Belgrade, Serbia
Duration: 4 Oct 20176 Oct 2017

Conference

ConferenceMHCL 2017: 22th International Conference on Material Handling, Constructions and Logistics
CountrySerbia
CityBelgrade
Period4/10/176/10/17

Keywords

  • flexible riser
  • deep/ultra-deep water
  • hydrostatic collapse
  • critical pressure

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