The Geology of the Weglowka Oil Field, Subsilesian Unit, Polish Outer Carpathians
Piotr S. Dziadzio, 2006. "The Geology of the Weglowka Oil Field, Subsilesian Unit, Polish Outer Carpathians", The Carpathians and Their Foreland: Geology and Hydrocarbon Resources, Jan Golonka, Frank J. Picha
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The Weglowka field is one of the biggest oil fields in the Outer Polish Carpathians, situated north of Krosno between Frysztak and Brzozow in the Subsilesian tectonic unit. The field was discovered in 1888 and has produced 998,220 t of oil and 214.52 million m3 (7.575 bcf) of gas since exploitation began. More than 350 wells have been drilled in the Weglowka oil field; it was completed in the reservoir intervals that range in depth from 100 to 1200 m (330 to 3900 ft). The Weglowka oil field is now in the final phase of exploitation.
Oil is accumulated in several Lower Cretaceous sandstone bodies. The trap is an anticline that is cut by two second-order longitudinal, small thrust faults that subdivide the field between two thrust sheets. Stratigraphic traps probably exist in the Lgota sandstone (the main reservoir), associated with lowstand systems tract sandstones deposited in basin-floor fans. The main seals in the field are the Verovice shales, Lgota Shales, and the younger Godula Shales and Weglowka marls.