UGS Swarzów

The Underground Gas Storage [UGS] Facility Swarzów is located in Małopolskie Voivodeship, in the district and commune of Dąbrowa Tarnowska. It is located within the Tarnów Plateau (Płaskowyż Tarnowski) which makes part of the Sandomierz Basin stretching between the uplands in the north and the Carpathians in the south. The area around Swarzów is marked by fairly monotonous, plain morphology, with altitudes ranging between 180-220 m above the sea level.

Information about the storage facility

First year of UGS operation: 1979

Information about the storage facility

Key parameters of the storage reservoir:

^*) average depth of the top of Cenomanian sandstones

The discovery of the Swarzów high-methane natural gas was made in 1958. The gas in place reserves were estimated to amount to 320 million m³. The production from the field began in 1959 and continued until 1978, except for the suspension in the years 1963-74. The depletion rate was 73%. The natural gas reservoir is lithologically heterogeneous. It is situated in a rock serious comprising (form the top): Upper Jurassic limestones, Cenomanian sandstones and Turonian limestones [Upper Cretaceous], all representing the Palaeozoic/Mesozoic stage. In the basal part, the gas zone of the reservoir is supported by underlying formation water. From the top, the reservoir horizon is sealed by Senonian marls.

Geological section