Drilling rig on the Banska PGP-4 website in Szaflary, Poland (supply: Rafal Szkaradzi?ski:)
Drilling of the Banska PGP-4 geothermal effectively in Szaflary, Poland has reached the 3800-meter level – about midway to the goal 7-kilometer whole depth.
The drilling of the world’s deepest geothermal effectively Banska PGP-4, with a goal whole depth of seven,000 meters, has entered the second section of labor. The drilling began on April 2023 and now has reached midway – about 3,800 meters. The drilling works are carried out by UOS Drilling S.A., an organization chosen by means of a young.
The drilling works of the Banska PGP-4 effectively are anticipated to final till the third quarter of 2024.
The mission assumes that geothermal water is for use primarily for heating numerous homes within the Szaflary commune and Nowy Targ. The potential of a clear geothermal warmth shopper market is large because the Szaflary commune has a complete inhabitants of roughly 11,000 inhabitants, and town of Nowy Targ has about 30,000 respectively.
The Mayor of Szaflary’s municipality Rafal Szkaradzinski assured that about 1150 amenities together with homeowners, public buildings, and accommodations within the Szaflary space have already utilized to the brand new anticipated geothermal community and plenty of others are additionally contemplating becoming a member of.
Consultants anticipate that the water temperature within the deeper aquifer on the backside of the effectively (7,000 m) will exceed 180 levels Celsius. If the effectively is profitable, electrical energy manufacturing can also be taken under consideration.
The Podhale geothermal aquifers happen throughout the Podhale Basin. Within the South, it borders the Tatra Mts. – its important recharge space, whereas from the North it’s restricted by the Pieniny Klippen Belt appearing as an impermeable barrier. Reservoir rocks are primarily Triassic carbonates, and subordinate Jurassic sandstones and carbonates. The principle geothermal aquifer is hosted throughout the Triassic and Eocene carbonates, within the 2,900–3,500 m depth interval. Reservoir temperatures attain 80–90 levels Celsius and the water circulation charges fluctuate from 50 to 150 l/s. The TDS is about 0.1–2.5 g/l. The aquifer is underneath artesian circumstances. The second aquifer is predicted at a stage of three,800 to 4,500 m.
The analysis and exploitable borehole will present perception into the traits of the deepest a part of the Podhale basin. The effectively designer expects that at a depth of seven,000 m the boundary of the Mesozoic sedimentary cowl with the granite bedrock shall be reached. Furthermore, together with the interpretation of 3D seismic knowledge, an especially precious set of analysis knowledge shall be created, permitting the preparation of an in depth 3D structural mannequin of the complete Podhale geothermal basin – deliberate after the completion of drilling.
The mission is estimated to value some PLN 130 million (USD 29m/EUR 27m), of which 100% shall be lined by subsidies from the Nationwide Fund for Environmental Safety and Water Administration.
Furthermore, in parallel, hoping for a optimistic completion of drilling a geothermal distribution community of about 76.2 km has been designed, spanning the communes of Szaflary, Zaskale, Bor and Banska Nizna. The funding, estimated at PLN 4.4 million, has been 85% co-financed by the Regional Fund for Environmental Safety and Water Administration in Krakow.
Mayor of the Szaflary’s municipality Rafal Szkaradzinski stated: “The mission is exclusive not solely as a result of we care about environmental safety and clear air in our space, however we additionally care about our power safety…”
Earlier than this mission, the deepest 6,400-m deep borehole to this point was drilled within the 2018 12 months in Espoo, Finland.
Supply: Marek Hajto of Polish Geothermal Society / AGH College of Krakow by way of e-mail correspondence
