- Investment ~EUR 4 billion for Neptun Deep with estimated production of ~8 billion m³ natural gas annually and first gas targeted in 2027.
- A 160 km, 30-inch (76 cm) steel pipeline will carry gas from the offshore platform to shore via the Tuzla microtunnel.
- Mobilization comprises ~50 vessels (up to 10 pipelayers); Castoro 10 arrived for nearshore work, with Castorone and JSD 6000 for deep-water installation.
- Project scope includes an offshore production platform, 3 subsea systems, 10 production wells (4 drilled at Pelican South, 6 underway at Domino) and onshore metering at Tuzla.
Project summary
OMV Petrom and SNGN ROMGAZ have started offshore pipeline construction for the Neptun Deep gas development; the project involves ~EUR 4 billion investment, an estimated 8 billion m³/year production and targets first gas in 2027, with major installation work planned in 2026.
Pipeline details
The subsea pipeline will be approximately 160 km long and 30" (76 cm) diameter, made from thousands of steel segments; the shore connection uses the Tuzla microtunnel and gas will be metered onshore before entering the National Transmission System.
Offshore installation and vessels
Mobilization includes about 50 vessels, up to 10 pipelayers; Castoro 10 has arrived for nearshore work, while Castorone and JSD 6000 will handle deep-water pipelaying and subsea installation; supply vessels, tugs, barges and ROVs provide support.
Field infrastructure and wells
Neptun Deep scope comprises an offshore production platform, three subsea systems, ten production wells (four already drilled at Pelican South, six underway at Domino) and an onshore metering and control station at Tuzla.
