Petroleum system modeling and assessment of the remaining hydrocarbon potential in the eastern part of Drava Depression

Author:

Cvetković Marko1,Emanović Ivona1,Stopar Andrej2,Slavinić Petra3

Affiliation:

1. University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, Croatia..

2. Cesta d.o.o., Pula, Croatia..

3. Geodetic office “SLAVINIĆ”, Ðurđevac, Croatia..

Abstract

The eastern part of the Drava Depression presents a relatively small part within the Croatian part of the Pannonian Basin. A confined part within the eastern part of the Drava Depression with a working petroleum system but few hydrocarbon accumulations was selected for the evaluation of the remaining hydrocarbon potential. Four subsurface models were built with different levels of detail on which determination of source rock maturity, assessment of potential, and finally, volumes of the potentially accumulated hydrocarbons were estimated. In addition, several case scenarios, regarding source rock properties and boundary conditions were addressed to present the risk points in the model. Results proved that the amounts of hydrocarbons generated ([Formula: see text] of oil and [Formula: see text] of gas) and accumulated ([Formula: see text] of oil and [Formula: see text] of gas) in the subsurface strongly support further exploration efforts even for the conservative modeling parameters (low heat flow [HF] and moderate total organic carbon values). A set of scenarios was also modeled including different HF, total organic content, and kinetic values each with significant impact for the final model result.

Publisher

Society of Exploration Geophysicists

Subject

Geology,Geophysics

Reference58 articles.

1. SUBSURFACE MODELING AND UNCERTAINTY MODELS OF THE NEOGENE-QUATERNARY SEDIMENTS IN THE PART OF SAVA DEPRESSION BASED ON DIGITALIZATION OF LEGACY MAP DATA

2. Barić, G., M. Maričić, and J. Radić, 1989, Geochemical correlation of source rocks and oils in southern margins of Pannonian Basin: 14th International Meeting on Organic Geochemistry, Abstracts, 218.

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