Project Management Services for Five Natural Gas Projects

of Hellenic Gas Transmission System Operator (DESFA) S.A.

The project concerns the provision of project management services for six (6) separate natural gas projects partially funded under the European Union Community Support Framework III. These projects consist of three (3) high pressure (80 barg) pipelines, two (2) metering stations feeding the power plants at Aluminium of Greece (A.D.G.) and PPC Aliveri and the compressor station at Nea Messimvria.

More specifically:

High Pressure Gas Pipeline Mavroneri – Antikyra:

NPS 20”, 29 Km, material API 5L-X65, design pressure 70 barg, cathodic protection system, 2 scraper stations

High Pressure Gas Pipeline to West Thessalia (Ambelia – Karditsa – Trikala)

NPS 10”, 72 Km, material API 5L-X65, design pressure 70 barg, cathodic protection system, 3 line valve stations along the route and 2 scraper stations, relocation of two M/R stations and RCC system.

High Pressure Pipeline to Aliveri (Evia Island)

NPS 20”, 58 Km onshore and 14 Km offshore (marine crossing), material API 5L-X65, design pressure 80 barg, cathodic protection system, 3 line valve stations along the route and 2 scraper stations

Metering Station at ADG

Installation of Metering Station to feed the power plant in the industry “Aluminium of Greece” (A.D.G.) at Aspra Spitia, Viotia with max capacity 100,000 Nm3/h and installation of RCC system

Metering Station at PPC Aliveri (Evia Island)

Installation of metering station to feed the PPC power plant at Aliveri with max capacity 160,000 Nm3/h and installation of RCC system

Nea Messimvria Compressor Station

Installation of two gas turbine driven compressors with absorbed power 7.5 MW each, operating flow range from 257,400 to 445,800 Nm3/h and pressure ratio 1.12 to 1.87.

Provided Services

C&M provided the following services as DESFA’s nominated Subcontractor:

  • Project management
  • Preparation of project execution procedures
  • Establishment of QA/QC plan and safety manual/plan for project execution
  • Project control (planning, scheduling and control, budget preparation, cost control, reporting, technical bulletins preparation and update)
  • Tender documents preparation for EPC contracts, TPI contracts, design review and construction supervision contracts, and contracts for materials purchasing
  • Bids evaluation
  • Contracting
  • Contracts administration
  • Fulfilment verification of contractors QA/QC systems and health, safety and environmental protection systems
  • Site representation and construction management
  • Contracts documents management
  • Project management team administration and IT system coordination

 

Project  Budget:  € 107.33 million
Services  Implementation Period: 2006 – 2010