Review of Detailed Engineering and Construction Supervision of the project "Detailed Engineering Procurement and Construction of Nea Messimvria Compressor Station Upgrade"
Review of Detailed Engineering and Construction Supervision of the project "Detailed Engineering Procurement and Construction of Nea Messimvria Compressor Station Upgrade"
Client:
DESFA S.A. (HELLENIC GAS TRANSMISSION SYSTEM OPERATOR S.A.)
Business Area:
Natural Gas
Solution/Service:
Project Management Services
Category:
Compression Station
Technical Data
The Compressor Station area of approximately 8,862 m2, is located at the Nea Messimvria DESFA’s site, west of Thessaloniki, within DESFA’s existing facilities of Nea Messimvria Operations and Maintenance Centre and Back-up Control Centre (BCC). A plot area for the additional Compressor Station to be installed is foreseen in the existing facility layout in order to allow this expansion. The installation of the third Filter and third Turbine Driven Compressor is feasible through the tie-in points that already exist on the Inlet, Suction and Discharge headers. The station should be designed for un-manned operation. Normal operational control will be from Gas Control Centre of Patima (GCC) or Back up control centre of Nea Messimvria (BCC). Characteristics and parameters of the 3rd Gas Turbine Compressor, including all accessory mechanical, electrical and electronic equipment, should be identical or as close as possible with the two already installed and operating Gas Turbine Compressor.
All utilities are already designed, procured and constructed. The current project, namely Nea Mesimvria Compression Station Upgrade, includes the following:
- Third Gas Compressor’s Individual Control Systems,
- Third Motor Control Centre MCC-2301C,
- Third UPS System (UPS-TC-2301-C),
- Operation & Control Systems Upgrade for the integration of the 3rd Turbine Compressor, including, but not limited to:
- Master Station Controller (MSC) and Load Share Panel (LSP),
- Distributed Control System (DCS),
- Emergency Shutdown System (ESD),
- Process Shutdown System / Gas Detection System (PSD/GDS),
- Station Control Room (SCR) equipment,
- Fire and Gas System Control.
Our Services
- Construction Supervision
- Project Management Services
Description
The project concerns the Upgrade of the Nea Messimvria Compressor Station (U-2300). The Nea Messimvria Compressor Station was designed for operation in two phases. The first phase, which has been already constructed and operated, has included the installation of two Gas Inlet Filter / Separators and two Turbine Driven Compressors (including two Gas Air Coolers) in the operation of 2x100%, in a 1x100% duty / 1x100% standby configuration (one operating and one standby). At the second phase, an additional (third) Gas Inlet Filter / Separator and a third Turbine Driven Compressor (including a third gas air cooler), is foreseen to be installed so as the operating configuration will become 2 x 50% duty / 1 x 50% standby configuration (two operating and one standby). It should be possible to run safely three machines in parallel. The scope of this project is the construction of the second phase of Nea Messimvria Compressor Station (Nea Messimvria Compressor Station Upgrade) in order to provide the additional compression required in the Natural Gas Transmission System (NGTS) to meet the required flowrates and pressures.
ASPROFOS as the SUPERVISING ENGINEER executes SUPERVISING ENGINEER’s duties listed below but not necessarily limited to. Throughout and in addition above mentioned duties, the SUPERVISING ENGINEER exercises all the activities that may be required by the Law.
- Review and agree the EPC Contractor’s breakdowns of the Works. These breakdowns are used for the Contractor’s quality plans, for progress reporting and for recording completed elements of the Works.
- Review the technical adequacy of the Contractor’s plans, procedures and method statements. Check that the scope of the Works is covered and that the requirements of the Technical Volume are incorporated. Check that the Contractor‘s proposed list of (future) plans and procedures is adequate.
- Check the adequacy of the plans, procedures and method statements and their implementation on a daily basis. Produce supervision plans and reporting to match Contractor’s activities.
Provide technical support to the DESFA concerning Authorities and other third parties.
- Planning, organization and administration of Supervision Team.
- Participate in all necessary site meetings, progress review meetings, etc. organized and conducted by DESFA.
- Check and sign the site log.
- Full support to the DESFA if requested, for the following CLIENT’ duties under the EPC CONTRACT:
- Approval of Personnel Appointments
- Approving and issuing variations
- Agreeing payment at completion
- Agreeing time for Clearance of the Site
- Agreeing Timing of Tests
- Acknowledgement of Force Majeure
- Approval of Sub—Contractors
- Approval of Quality Plan and Manual Auditing
- Consenting to Time Schedule & requesting Time Schedule Revision
- Consenting to Removal of Equipment
- Coordination of Deliveries of Client Supplied Materials
- Coordinating co—operation with any Others on the Site
- Consenting to work outside normal hours
- CONTRACT Interpretations
- Drawings & Specifications issues
- Requests for Samples & Tests
