1-D and 2-D numerical modelling of hydrocarbon generation,expulsionand migration processes in Carboniferous strata in the south-westernpart of the Lublin Trough

摘要

In the paper authors carried out the petroleum analysis of Carboniferous strata in thesouth-eastern part of Lublin Trough by means of BasinMod 1- & 2-D numerical modelling. Resultsof geochemical analyses allowed to determine source rocks in three complexes of Carboniferousstrata. Carboniferous source rocks have good petroleum potential and contain type III kerogen. In onedimensional numerical modelling, measured thermal maturity values had been calibrated of erosionquantity, it provided to identification of hydrocarbon phases in Komarow IG-1, Grabowiec IG-4 andTerebin IG-5 wells. Two dimensional modelling along Komarow – Terebin cross-section gave a spa-tial view on transformation ratio of kerogen and total amount of generated oil and gas. It is pointed,that hydrocarbons could be retained only in KomarOw and Grabowiec area. Petroleum analyses re-veal also, that intensive Paleozoic erosion ruined previously formed traps and lack of regional Meso-zoic overburden caused the dispersion of residual hydrocarbons.