TPAO Awards Schlumberger Sakarya Offshore Gas Field Phase-1 Contract

Schlumberger received a significant contract award by Turkish Petroleum Corporation (TPAO) for the engineering, procurement, construction, and installation (EPCI) of end-to-end production solutions for the Sakarya gas field, Turkey’s largest gas reserve. The contract is awarded to Schlumberger and Subsea 7, as part of a consortium.

The integrated project scope will cover subsurface solutions to onshore production, including well completions, subsea production systems (SPS), subsea umbilicals, risers, flowlines (SURF), and an early production facility (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®, the subsea technologies, production, and processing systems division of Schlumberger, and Subsea 7.

“Schlumberger is uniquely positioned to integrate solutions from the subsurface to the processing facility, and deliver pipeline-ready gas,” said Donald Ross, president, Production Systems, Schlumberger. “This end-to-end production solutions contract award demonstrates the confidence placed in our ability to accelerate discovery to first gas and enhance value creation for TP in the Sakarya offshore gas field. Through open collaboration and by leveraging innovative production solutions, Schlumberger will drive local content value creation and remains committed to supporting Turkey’s energy sector.”

The scope of work to be executed by Subsea 7 comprises the EPCI of the subsea pipelines and associated equipment to connect the subsea wells in approximately 2000 metres water depth to the EPF. The project includes the provision and installation of infield flowlines, control umbilicals, tie-in connections, associated subsea equipment, 170 kilometres of gas export pipeline and monoethylene glycol injection pipeline to the EPF.

Project management and engineering has already commenced and will be managed from the Subsea 7 office in Istanbul, Turkey.

“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,” Olivier Blaringhem, CEO Subsea Integration Alliance, said.

“Subsea 7 has a long track record of providing optimised solutions for deepwater developments and we are pleased to be working, through Subsea Integration Alliance, on this important project. Subsea 7 looks forward to building a long-term relationship with Turkish Petroleum and to making a significant contribution to the development and growth of the Turkish energy industry,” John Evans, Subsea 7 Chief Executive Officer, added.

The Sakarya offshore greenfield represents the largest gas reserve ever discovered in Turkey. The subsea development will be located approximately 100 nautical miles into the Black Sea.


Second biggest discovery in the world in 2020

There has been a natural gas discovery at the Sakarya Gas Field, Black Sea on 21 August 2020. The 405 bcm discovery at the Tuna-1 Well, drilled by Fatih, has been the biggest discovery in Turkey, while it was named as the second biggest discovery in the entire world in 2020.

Tuna-1 Well has been completed on 18 October 2020 in 94 days with 4,775 meters total depth.

For field development and production, Türkali-1 Appraisal Well, which has been drilled on 31 October 2020 after the completion of Tuna-1 Well, was also completed by the end of 2020.

Regarding the Sakarya Gas Field Development Project, 10 appraisal wells are planned for the first phase with the aim to produce the first gas by 2023.

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