Structural Re-Analysis of RBDP-A Platform in Blocks 01&02 – PVEP

  • PetroVietnam Exploration Production
  • Vietnam
  • Asia
petrovietnam-facilities
PVEP assigned Velosi to perform Structural Re-Analysis of RBDP-A Platform, Offshore Vietnam. Structural re-analysis is required due to the aging condition and additional weights added by various modifications since 1998 until the present time.
The main objective of this analysis/study is to confirm structural integrity and to define maintenance/ modification requirements for safe operations of the RBDP-A platform till end of year 2028.

Scope

The Project Scope of work includes:

  • To conduct the site survey to verify the actual condition against the provided drawings, reports;
  • Update Weight Control Report (WCR) basing on actual loads/equipment/facilities;
  • To validate, upgrade and produce an analytical computer model to reflect the platform current status to be used for in-place analysis;
  • To perform static in-place analysis including soft mooring load;
  • To perform dynamic spectral fatigue analysis;
  • To perform mitigate calculation/strengthening design if there is any locally overstressed member;

Process

Velosi performed Structural re-analysis of RBDP-A platform as per API-RP 2A WSD, API RP 2 SIM, ISO19902 & AISC codes, utilizing SACS Software. All the drawings & data’s required for completing the re-analysis were collected from client viz.

  • As-Built Drawings
  • Previous Analysis Reports & Sacs Models
  • Geotechnical Data
  • Inspection Reports
  • Metocean Data of the Field
  • Equipment & Piping Layout Drawings
  • Details of Modifications carried out till date
  • Existing Weight Reports
  • Structural Design Basis

Outcome

Velosi successfully carried out the Structural Re-Analysis Study for RBDP-A platform of PVEP in accordance with the international codes and standards using Bentley Sacs Software.

Deliverables

Velosi submitted the following deliverables:

  • Site Survey Report
  • Updated Weight Control Report
  • In Place Analysis Report
  • Dynamic Spectral Fatigue Analysis Report
  • Strengthening or Mitigation Report & Drawings (as applicable)
  • In place & Fatigue Analysis SACS model files.
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Mr. Ijaz Ul Karim Rao
Ijaz Ul Karim Rao
MD, Velosi Asset Integrity Limited

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