GIS-based Structural Geology for Petroleum Exploration within the Polish Permian Basin

Kudrewicz, Rafal¹ (1) Polish Oil and Gas Company, Warsaw, Poland

Cartographic works provided for analyses of petroleum potential of the Polish Lowland resulted in an idea of construction of coherent structural model of the Polish Basin. It is a project, which will continue for years, but there are some important results now. Namely, it were constructed structural numeric models of the bottom of the Rotliegend, the top of Rotliegend/bottom of Zechstein (Permian) – important because of gas fields.

For this type of modeling the only adequate tool is Geographic Information System. Its implementation allowed to analyze, integrate and process huge amounts of data:

200 synthetic interpretations of seismic (2D and 3D)

2200 well data sets.

Subsurface structural modeling was made with geological interpretation software dedicated for surface modeling with application of discontinuous functions. The results in form of regular grids were transferred into the GIS where the thickness and volumetry computation as well as the final integration, coherency control and visualization of the results were provided.

The result of works is a set of coherent numeric models of top and bottom surfaces, and thickness of Rotliegend as well as its most important effusive and sedimentary facies.

The work could not be done without the perfect cooperation of a team of my colleagues and friends. Special thanks for: Bartosz Papiernik and Pawel Karnkowski who critically discussed the results of work, Gizela Gabryszewska, Sabina Czochal, Lukasz Karski and Grzegorz Orlinski who helped me in data collection, integration and preprocessing.