High Pressure Natural Gas Metering Station at Strymonochori
High Pressure Natural Gas Metering Station at Strymonochori
Client:
HELLENIC GAS TRANSMISSION SYSTEM OPERATOR S.A. (DESFA S.A.)
Business Area:
Natural Gas
Solution/Service:
Project Management Services,Technical Consulting
Category:
Metering & Regulation Stations
Technical Data
- High Pressure Metering Station STRYMONOCHORI
- Measurement of the quantity of the imported N.G. from Bulgaria with five (5) parallel metering lines with orifice, each equipped with two independent electronic measuring systems and one additional independent mechanical measuring system
- Measurement of the quality of the N.G. with Gas Chromatographs and Analyzers
- Removal of solid and liquid particles with filters at the entrance of the Station
- Regulation of the gas supply to the Greek Network with three (3) regulating lines according to the programme of the Gas Control and Dispatching Center
Our Services
- Review of the Detailed Design prepared by the EPC Contractor on behalf of the Owner
- Construction Supervision Services
- Supervision and acceptance of all technical methods applied during the Project execution
- Assess any key design risks, expanding the review activity accordingly
- Monitoring the progress of the Project, intervening when corrective actions were required
- Support the Project in terms of progress verification and payment
- Review of the following EPC Contractor documentation :
- Field Engineering Output
- Procurement Schedule
- Inspection and Testing programs, Plans and procedures
- HSE Manual, Plan and Procedures
- “As built” documentation
- Certify Mechanical Completion
Description
The Border Metering Station at Strymonochori is located 12 km away from the Greek - Bulgarian border, in the Municipality of Sidiki near Sidirokastro town.
The Station operates 24 hours per day with round-the-clock shifts and its main function is to measure / check the quantity and the quality of the imported natural gas from Bulgaria.
Additionally the station executes the following processes to the incoming natural gas:
- Removal of solid and liquid particles with filters at the entrance of the station;
- Heating with heat exchangers utilizing hot water (when necessary)
- Regulation of gas supply to the Greek network according to the programme of the Gas Control and Dispatching Center.
The supervision of the operation of the station and all the important controls are performed from the local control room by means of a Distributed Control System (DCS).
The quality of the natural gas is measured by installed Gas Chromatographs and Analyzers so that there is continuous control of the gas composition, density, content in sulphurs, water dew point (WDP) and hydrocarbon dew point (HDP).Based on these measurements, the calorific value, density, compressibility factor and other important gas properties are computed.
