An Eni-led joint venture in Libya overseeing the huge Structures A&E project in the Mediterranean Sea has given potential bidders more time to submit prequalification documents for what will be a major project management services (PMS) contract.

Mellitah Oil & Gas — the partnership between Eni and state-owned National Oil Corporation — operates Structures A&E, a massive project that will tap gas and condensate resources and also handle significant volumes of carbon dioxide.

The multibillion dollar development calls for two new fixed platforms — one of them very large — upgrading of an existing platform, an array of subsea pipelines and an onshore processing facility.

The bid processes for the engineering, procurement and construction of most of these facilities is under way.

The PMS prequalification exercise was due to close on 13 October but interested companies have now been granted until 12 November to compete their questionnaires in the hope they will be shortlisted and then sent invitations to tender.

According to the project documentation, PMS activities are due to begin in the first quarter of 2023 — at the same time construction work is due to start on all the new facilities.

The PMS contract will run all the way through to first production, which is expected in 2026.

Mellitah’s chosen contractor will support the operator’s execution project management team and provide comprehensive PMS work.

The workscope covers detailed engineering and calls for the PMS provider to ensure the delivery of “soundly engineered” facilities “on time and within budget”.

The winning PMS contractor also needs to monitor, co-ordinate and follow up on on-site construction, off-site fabrication, installation, hook-up, commissioning and performance-testing activities to ensure operations are “technically sound” and that all facilities are completed “on time allowing a timely start-up of production”.

Testing, commissioning and acceptance of the production facilities will also be provided, as will project control services, procurement and contract management plus quality assurance, certification and safety services.

Structures A&E’s 85,000-tonne processing platform and less weighty wellhead platform will, between them, be designed to produce 760 million cubic feet per day of gas, 42,000 barrels per day of condensate and 5000 bpd of oil.

The Structure A wellhead platform will host eight gas and condensate wells, while the larger Structure E facility will receive well fluids from 18 dry tree oil and gas wells plus five subsea gas wells.

From Structure E, well fluids will be sent, via two separate pipelines, to a facility at Mellitah on the coast that will also handle CO2 produced by the joint venture's offshore assets.

Output from the Structure A wellhead platform will be exported to the operator's existing Sabratha platform.

The CO2 produced will be piped from the onshore Mellitah complex to Sabratha for reinjection.

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