dcsimg Structural integrity management - Ramboll Group
      
|
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Structural integrity management

With mature fields representing an ever-growing segment of global offshore reserves, there is a keen interest in maximising recovery from existing oil fields to keep up with global energy demand. 
South Arne field
 
 

Valuable knowledge within the field

Throughout more than four decades of experience in engineering solutions for the oil and gas industry, Ramboll has developed innovative, cost-effective approaches to field lifetime extension.

Based on information provided from structural health monitoring systems (SHMS), our engineers use advanced calculations to determine the actual structural integrity of a platform. High-tech measurements can minimise the cost of maximising recovery from existing oil and gas fields.

As a full-service provider we cover the entire SHMS cycle:

  • Non-linear system identification
  • Expansion processes
  • Bayesian FEM Updating
  • Quantification of uncertainties
Siri platform. Courtesy of DONG Energy

Ramboll’s innovative SHMS approach

Maintaining ageing offshore structures may end up economically impossible. Ramboll’s innovative SHMS approach bridges knowledge gaps and potential inconsistencies.

Operators are able to prolong field life while keeping track of the undergoing changing conditions of the structure. Quantifying uncertainties improves safety and reduces the frequency of inspection planning which, in turn, will minimise the operational cost of maintaining the platform on stream.

Graph of reduced frequency of inspections with structural integrity management

Improving the method through research programs

Ramboll is represented in three Oil & Gas Research Programs:

  • OGP Review (Report 486), Reliability – Current design and potential inconsistencies
  • Danish Hydrocarbon Research Technology Centre, Danish Technical University (DTU), Denmark
  • Joint Industry Project (JIP), DNV-GL, Norway

Our services within structural integrity management cover: 

  • Offshore platforms
  • Structural and civil engineering

Watch video (in Danish) or read research papers

Professor Rune Brincker from Aarhus University introduces a new project that revolutionises civil engineering through more accurate predictions of structural age and integrity.

Below, a series of research papers are available to read online, where our representative together with other experts in the industry have dissected, discussed and analysed the principles behind the SHMS.

 

Get more insights on structural integrity management

 

Technical papers

Front page of the white paper Structural and System Monitoring for Enhanced Oil and Gas Recovery in the Danish North Sea
White paper presented to the Danish Research and Technology Centre
Structural and System Monitoring for Enhanced Oil and Gas Recovery in the Danish North Sea (online publication, opens in new window)

 

First page of paper on Load identification of offshore platform for fatigue life estimation
Paper with contributors from Aalborg University and Ramboll
Load identification of offshore platform for fatigue life estimation (online publication, opens in new window)
Front page of paper on Bayesian modelling of offshore platforms
Paper with contributors from University of Liverpool, Siemens and Ramboll
Bayesian modelling of offshore platforms (online publication, opens in new window)

 

Front page of paper on Continuous stress monitoring of large structures
Paper for IOMAC '13 - 5th International Operational Modal Analysis Conference
Continuous stress monitoring of large structures (online publication, opens in new window)
Front page of paper on Cost-effective load monitoring methods for fatigue life
Paper for 33rd International Conferences on Ocean, Offshore and Arctic Engineering
Cost-effective load monitoring methods for fatigue life (online publication, opens in new window)

 

First page of paper on Expansion of Mode Shapes and Responses on the Offshore Platform Valdemar
Paper with contributors from Aarhus University and Ramboll
Expansion of Mode Shapes and Responses on the Offshore Platform Valdemar (online publication, opens in new window)
Experimental Study of Strain Prediction
Paper from Engineering Structures, with contributors from Aarhus University, Technical University of Denmark and Ramboll
Experimental Study of Strain Prediction on Wave Induced Structures Using Modal Decomposition and Quasi Static Ritz Vectors (online publication, opens in new window)

Articles

Condition-based lifetime extension with structural health monitoring
Article from Adjacent Oil & Gas
Condition-based lifetime extension with structural health monitoring (opens in new window)
Smart extension of platform lifetime
Article on lifetime extension from our Let's Talk Megatrends section
Smart Extension of Platform Lifetime

Brochure

Structural Health Monitoring

Custom-made structural health monitoring systems (SHMSs) for new and existing complex structures.


Contact

Ulf Tyge Tygesen, Ramboll Oil & Gas
Ulf Tyge Tygesen
Development Manager, Global Service Areas, Jackets
T+45 5161 7398
Eutt@ramboll.com
Wwww.ramboll.com