NE krawędź Wału Wolsztyńskiego miejscem depozycji raf w poziomie wapienia cechsztyńskiego : interpretacja litofacjalna danych sejsmiki 3D kluczem do detekcji pułapek węglowodorów

The Zechstein Limestone is one of the most perspective reservoir formation. The Wolsztyn Ridge as the local paleoelement during the Zechstein transgression was the site of reef sedimentation. In consequence of hydrocarbon play the carbonate reefs became traps for the gas accumulation. Interactive, lithofacial interpretation of 3D seismic data allowed to separate the reef body using well-core, well-log information and paleogeographic factor. On this basis the traps geometry and porosity was determined. It has allowed to calculate the gas reserves. In the result of up-to-date prospecting many reef formation have been found: Paproć, Kościan, Brońsko, Wielichowo, Ruchocice, Bonikowo, Racot. 24 drillings located in the reef areas confirmed accurately the results of interpretation.