See link

Blok 208

Coordinates [1992]

Location

• onshore

Wielkopolskie province:

• Gniezno county, communes: Czerniejewo (6.44% of the area), Gniezno (0.33%), Gniezno City (0.62%), Łubowo (0.10%), Niechanowo (10.67%), Witkowo (16.92%),
  
  
• Słupca county, communes: Orchowo (1.28%), Ostrowite (4.16%), Powidz (7.65%), Słupca (10.91%), Słupca City (1.09%), Strzałkowo (15.02%),
  
  
• Września county, communes: Kołaczkowo (2.85%), Miłosław (0.42%), Nekla (0.03%), Września (21.51%).

Petroleum system

I - UNCONVENTIONAL (tight) Carboniferous (Culm), Permian (Upper Rotliegend, Zechstein Limestone?)

II - CONVENTIONAL Permian/Zechstein (Main Dolomite)

Source rocks

I - Culm fine-grained clastic rocks

II - Main Dolomite carbonate platform and slope microbialites, basin plain fine-grained clastic rocks

Reservoir rocks

I – Culm and Upper Rotliegend sandstones, Zechstein Limestone carbonates

II - Main Dolomite carbonate platform and slope limestones and dolomites

Seal rocks

Zechstein evaporites

Trap type

geomorphological, structural, continuous