Provision of Engineering, Procurement and Construction for Offshore Pipeline (EPC for Offshore Pipeline)

Client: PETROVIETNAM GAS JOINT STOCK CORPORATION (PV GAS)
Location: Long Hai-Ba Ria Vung Tau (Viet Nam)
Period: 2020-2021
Vessel: TOS Ha Long, POS-01
Water Deep: 5-25 meters; 50 meters
Equipment:

  • Pipelay Barge
  • Work Barge
  • AHT
  • Air Diving System
  • ROV System

Project SOW are summarised below:

  • Pre-Installation, as-laid and as-built survey;
  • Onshore preparation and 1,5km pre-trenching/ rock dumping at nearshore section in Long Hai beach;
  • Shore pull (1,15km) and laying the 26” PL from Land Fall Point (LFP) to KP. 294 (approx. 30,5km);
  • 0,3km Onshore pipeline installation from LFP to LFS at Long Hai;
  • PLEMs installation at KP 207.5 and KP 227.5;
  • Tie-in spool and Barred Tee installation at KP 227.5 & KP 207.5;
  • Free span & concrete mattress installation;
  • Pre-commissioning & commissioning and gas-in support.
    Pipe size 26inch, Pipe wall thickness 19.1 and 23.8mm
    Concrete Coating thickness 50mm and 70mm


Video: NCS2 26″ GAS Pipeline Project – Phase 2