Offshore structure

Structural Integrity and Pipeline Technology (CTR3)

The objective of the work programme is to demonstrate structural integrity of potential hub platforms to survive extreme wave loading allowing continued safe operation of the facilities beyond year 2042.

The challenge of extended lifetime is approached through enhanced structural monitoring, evaluation of extreme wave probability and risk evaluation. Proving increased lifetime capability of the potential hub structures opens the opportunity of using the production facilities for tie-in solutions.

For more information see 2017 annual report.

DHRTC Hypothesis

The research hypothesis is to combine the understanding of the structural response and of extreme waves to supplement the DUC AWARE project in reducing uncertainty in the risk analysis from which decisions on life extension, strengthening, operational restrictions etc. can be based.

Advanced methods for the analysis of actual structural response will be utilized to verify and update models and provide estimates of the condition of the structures. A unique understanding of the nature and statistics of extreme waves will result from theory and measurements at actual location and test facilities. Research on fatigue crack propagation and inspection techniques will address probability of detection of critical defect size.

Improved risk-based methods for fatigue crack inspection and corrosion will be developed. Value of Information (VoI) will be employed for selecting data and measurements based on importance rather than availability.

Secondary benefits will be reduced cost of structural integrity & reliability management.

The Structural Integrity and Pipeline Technology group is subdivided into 3 work packages:

Expected Key Deliverables at TRL 3

  • Actual stress statistics
  • Wave statistics and monitoring data
  • Structural monitoring data
  • Validation for structural model assumptions
  • Load model and updated statistics for extreme, breaking waves
  • Probabilistic risk modelling


Partner institutions:

Technology Readiness Level

The Technology Readiness Level (TRL) scale is used to measure the maturity of a project. All technologies are evaluated on the same basis of Comparison, which provides a better overall picture. The first step on the scale is research still in the idea phase while step 7 is where the idea has matured into applicable technology.

Read more about how we use the TRL scale at DHRTC here

Load Environment Modelling and Forecasting

Sebastian Glavind
Learn more about how PhD student Sebastian Tølbøll Glavind from Department of Civil Engineering at Aalborg University works with safety of structures.


Get to know more about how research can help operators make better decisions on e.g. an oil platform.
23 MARCH 2019