Photo: Fatih drillship. Source: Turkish Ministry of Energy and Natural Resources

Subsea 7-Schlumberger consortium wins offshore Turkey

The consortium of Subsea 7 and Schlumberger has won an engineering, procurement, construction, and installation (EPCI) contract by Turkish Petroleum for subsea equipment for the Sakarya development in the Black Sea.

The integrated project scope covers the delivery of subsurface solutions to onshore production, including completions, subsea production systems (SPS), subsea umbilicals, risers and flowlines (SURF), and an early production facility (EPF).

Subsea 7 is in charge of the subsea pipelines and associated equipment to connect the subsea wells in approximately 2,000-meter water depth to the EPF.

The project includes the provision and installation of infield flowlines, control umbilicals, tie-in connections, associated subsea equipment, 170 kilometers of gas export pipeline, and monoethylene glycol injection pipeline to the EPF.

Schlumberger will deliver the well completions scope and the design, construction, and commissioning of the early production facility capable of handling up to 350 MMscfd of gas. The SPS and SURF scope will be delivered by OneSubsea.

Project management and engineering have already commenced and will be managed from Subsea 7’s office in Istanbul.

Olivier Blaringhem, CEO of Subsea Integration Alliance said: “This combined offering provides our customer with a truly integrated solution for field development. A strong, collaborative early engagement process led by Turkish Petroleum has enabled an industry-leading timeline from discovery to first gas for a project of this scale and complexity.”

To remind, Turkish President Recep Tayyip Erdoğan announced in August last year that significant gas resources had been found in the Tuna-1 well in the Sakarya field.

The scale of the reserves is said to have the capacity to help Turkey cut its dependence on energy imports if the gas can be commercially extracted and potentially meet the country’s energy needs for 20 years.

Turkey decided to operate the gas field but also revealed the possibility of cooperating with foreign firms in terms of detailed work and equipment.

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This July, Turkish oil and gas company TPAO completed the first flow test of the Türkali-2 appraisal well in the Sakarya gas field.

The acquired data and samples will be used to further optimize the field development work and to refine the front-end engineering and design (FEED). First gas is expected to reach the Filyos gas processing terminal in 2023.