Structures and hydrocarbon potential for the Intra-Carpathian basins of Czechoslovakia

Conference · Thu Aug 01 00:00:00 EDT 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:5848699

Blizkovsky, M; Kocak, A; Morkovsky, M ^[1]; Ciprys, V ^[2]; Francu, J; Hrusecky, I; Pereszienyl, M ^[3]; Hodan, S ^[4]; Milicka, J ^[5]; Muller, P ^[6]; Hrusecky, I ^[7]

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1. Geofysika, Brno (Czechoslovakia)
2. Moravian Oil Co., Hodonin (Czechoslovakia)
3. WNP Co., Bratislava (Czechoslovakia)
4. Nafta Gbely Co., Gbely (Czechoslovakia)
5. Comenius Univ., Bratislava (Czechoslovakia)
6. Geological Survey, Brno (Czechoslovakia)
7. Nafta Gbely Co., Michalovce (Czechoslovakia)

Hydrocarbon prospection and production is concentrated in the Neogene of the Vienna basin, Danube basin,and East-Slovakian (Transcarpathian) basin, in the inner Carpathian Paleogene, and in the Mesozoic of the Vienna basin. Evolution of these basins and their underlying formations have been controlled by different tectonic styles, volcanic activity, and thermal conditions. Geophysical surveys were comprised of gravimetric, magnetometric, and geoelectric measurements. Seismic methods were applied for mapping the structural units and the fault systems. Internal and detail structures were studied by use of three-dimensional seismic. Miocene shales and marls contain mostly kerogen types III, II-III, and III-IV. The initial source potential, according to Rock-Eval pyrolysis, is less than 2 kg HC/t of rock, and is quite similar in all three basins with the exception of the upper Karpatian in the East-Slovakian basin, which is barren as a source rock. Source rock maturity was estimated using vitrinite reflectance and pyrolytic and chemical indicators. Hydrocarbon generation was reconstructed from burial and thermal histories in a one-dimensional time-temperature models, and contours of the ceiling and floor of the oil gas and gas windows from maps and regional sections. Source potential of the Neogene fill was calculated from the initial potential and the degree of kerogen to hydrocarbon conversion. Controlled by geothermal gradient, the total estimated potential decreases from the East-Slovakian to the Danube and Vienna basins; however, prospects of hydrocarbon generation and preservation in the rock increase in the same order, and are best in the Vienna basin.

• OSTI ID: 5848699
• Report Number(s): CONF-910978-; CODEN: AABUD
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 75:8; Conference: International conference and exhibition of the American Association of Petroleum Geologists (AAPG): the way ahead-hydrocarbons for the 1990s, London (United Kingdom), 29 Sep - 3 Oct 1991; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
CZECHOSLOVAKIA
SEDIMENTARY BASINS
NATURAL GAS DEPOSITS
EXPLORATION
PETROLEUM DEPOSITS
GEOPHYSICAL SURVEYS
PETROLEUM GEOLOGY
GEOCHEMISTRY
KEROGEN
MATURATION
SOURCE ROCKS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMISTRY
DEVELOPING COUNTRIES
EUROPE
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
GEOLOGY
MATERIALS
MATTER
MINERAL RESOURCES
ORGANIC MATTER
RESOURCES
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration