21st International Petroleum and Natural Gas Congress and Exibition of Türkiye, Ankara, Türkiye, 27 - 29 Eylül 2023, ss.312-315
Considering its significant working gas capacity of 2.25 billion cubic meters and its strategic proximity to industrial hubs and ports, an inquiry was conducted to determine the potential viability of repurposing the Northern Marmara depleted gas field for underground hydrogen storage (UHS). Field-specific evaluation of the potential issues found in the literature was conducted, and microbial consumption of hydrogen and impurities in the withdrawn stream were determined to be the prominent risk factors. The field was modelled, and simulated using a commercial software suite, previously published field data and previously presented storage schedule and constraints. The simulation spanned an initial depletion period between 1997-2002, 25 years of methane storage between 2007-2032, hydrogen storage between 2032-2057, and finally an extended withdrawal period before the abandonment. A comparison with the field’s current use as a natural gas storage was done by juxtaposition of the energy content of the produced gas streams. Stream composition during the UHS period showed high variability due to methane being withdrawn alongside hydrogen. Overall, 3.12 times less energy was withdrawn during the UHS period compared to methane storage period.