PROJECTS

High Pressure Natural Gas Pipeline - Ag. Theodori - Public Power Corporation's Plant (PPC) at Megalopolis
Client: HELLENIC GAS TRANSMISSION SYSTEM OPERATOR S.A. (DESFA S.A.) Country: GreeceCompletion: 2015

Technical Data

High Pressure Pipeline AG. THEODORI - MEGALOPOLIS is divided into three (3) sections of total length 158.94 km

  • Section I (AG. THEODORI - EXAMILIA)
    • Diameter  30" underground, cathodically protected steel pipeline, piggable
    • Length : 15.56 km
    • Three (3), 30" Line Valve Stations
    • One (1),  Scrapper Station – Receiver
    • Three (3),  stub – outs with valve  for future use (2x8" and 1x30")
       
  • Section II (EXAMILIA - TRIPOTAMOS)
    • Diameter 24" underground, cathodically protected steel pipeline, piggable
    • Length 135.99 km
    • Six (6),  Line Valve Stations
    • One (1),  24" Scrapper Station – Launcher
    • Five (5), stub  - outs with valve for future use
    •  ( 1x6", 2x8", 1x10", 1x24")
  • Section III (TRIPOTAMOS - MEGALOPOLIS)
    • Diameter 24" underground, cathodically protected steel pipeline, piggable
    • Length 7.39 km
    • One (1), 24" Scraper Station – Receiver, at Public Power Corporation (PPC)
    • One (1), 24" stub - out with valve for future Metering Station at PPC MEGALOPOLIS
  • For all Sections:
    • Design pressure: 80 barg
    • HDPE conduit 40 mm O.D. along the pipeline route for the insertion of the Fiber Optic cable
    • Electrical, instrumentation, telecommunication and SCADA system (including LMR).
    • Access roads

Our Services

Basic Engineering Design and Construction Supervision Services for the High Pressure Natural Gas Pipeline from AG. THEODORI to PPC MEGALOPOLIS.

  • Project Management:
     
    • Preparation of Quality Plan,
    • Detailed project Schedule, planned progress curve
    • Engineering Document Register (EDR)
    • Cost Estimation Report and Monthly progress Report
    • Coordination and monitoring of all engineering activities
    • Follow up the progress of the project, intervening when corrective actions need to be implemented to avoid divergence from the requirements set out in the EPC Contract
       
  • Basic Design:
     
    • Determination of the optimum routing, following feasibility studies of various schemes devised
    • Preparation of Process Flow Sheets and P&IDs for pipeline sections, Line Valve Stations, Scraper traps, etc.
    • Preparation of data sheets and Specifications for all instrumentation and peripherals

Description

The project concerned the extension of the Greek Natural Gas Transmission System in order to supply the future PPC power Plant with natural gas mainly  for electric energy production in the area of Megalopolis with a total capacity of 800 MW and supplementarily to supply the urban - commercial sector and the small industries of Corinth, Argos, Nafplio, Tripolis and Megalopolis regions. Provisions have been taken for possible future supply of the regions of Patras, Kalamata and Sparti.