30 May 2023
Turkish drillship successfully completes flow tests on Black Sea
Turkish oil and gas operator TPAO has completed all planned flow tests in the Sakarya gas field located in the Black Sea. Hence, obtaining important information regarding the potential of the field.
The first flow test on the Türkali-1 appraisal well took place in January 2022. Thus, the first reservoir section flowed gas at a rate of 1.15 MMSCMD (40.4 MMSCFD). The results prove excellent well deliverability and reservoir connectivity.
TPAO has now performed the second flow test of the Türkali-1 appraisal well in the Sakarya gas field. Respectfully, the second reservoir section flowed gas at a rate of 0.62 MMSCMD (21.9 MMSCFD). Results from this test also proved excellent deliverability and reservoir connectivity, according to TPAO.
“All planned well tests are completed successfully. The results provided important information for us regarding the potential of the field.”Melih Han Bilgin, TPAO’s Chairman and CEO
The planned flow tests were carried out at two appraisal wells and five different reservoirs. Note that, the first flow test of the Türkali-2 appraisal well completed in late July 2021. Data and samples acquired from the flow tests are in evaluation to further optimise the field development work. Therefore, refine the front-end engineering and design (FEED). First gas will expectedly reach the Filyos gas processing terminal in 2023.
Türkali-1, an ultra-deep offshore appraisal well, drilled to a total depth of 3,920 meters in 2,143 meters water depth. It was the first appraisal well drilling in the Sakarya gas field with Fatih drillship.
TPAO’s drillship Kanuni is conducting the well flow tests in the field, which joined the fleet in 2020. The flow test provides data on the rate and the pressure of the extractable natural gas from the discovered reservoirs. Hence, calculate the economic production potential based on that data.
So far, TPAO has discovered a total of 540 bcm gas in the Western Black Sea ultra-deep offshore. Sakarya gas field development project comprises a subsea gas production system, a receiving and processing terminal on the Filyos shore, and pipelines to connect them.
TPAO has already assembled a team of contractors for the project, including a consortium of Subsea 7 and Schlumberger, Italy’s Saipem, and the UK’s Wood.