Optimization and Integration for Subsea Umbilicals Risers and Flowlines
Subsea Umbilicals Risers and Flowlines (SURF) connect subsea production facilities to surface systems, playing a crucial role in the extraction and transportation of hydrocarbons from the seabed to platforms and the coast.
NSG is specialist in Subsea Umbilicals Risers and Flowlines (SURF) projects, including all necessary analyses for in-place condition and installation, whether involving rigid or flexible structures.
Service Portfolio for Subsea Umbilicals Risers and Flowlines
Riser extreme analyses;
Wave induced, heave induced and VIV fatigue analyses;
Interference analysis of Riser-Riser and Riser-Mooring;
Installation analysis of flexible lines;
Free span assessment;
Lateral and upheaval buckling analyses;
Ultimate and Fatigue Limit State analyses of pipelines;
Pipeline crossing design;
Integrity and Life extension assessment of rigid pipelines;
Pipeline In-Situ Verifications;
Torpedo and suction pile design and installation analysis;
Challenge
Ensuring the integrity of rigid pipelines considering VIV (Vortex-Induced Vibration) in free spans and corrosion on the pipe walls over their service life.
Solution
We apply internationally accepted standards endorsed by regulatory bodies such as ANP and IBAMA, as well as operators like Petrobras (PIDR), to assess the integrity of corroded pipelines, taking VIV and data from instrumented pigs into account over their service life or for extended service. This enables us to safely predict operational conditions that allow for secure operation under the specific conditions of each pipeline.
Challenge
Conducting interference analyses between risers that adhere to Petrobras Technical Specification (ET) standards.
Solution
We have extensive experience with the methodology required by Petrobras for riser interference analyses. Furthermore, through automation techniques and the use of the right analytical tools, we can offer efficient solutions for your project.
Challenge
Safely handling flexible pipes and umbilicals while considering the limitations of available construction vessels.
Solution
We develop detailed operational procedures and conduct analyses using simulations to determine the best conditions for safely and efficiently conducting subsea installations. Additionally, we dimension and verify the components as well as the structure of the flexible pipe or umbilical to meet the operation's requirements.
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