Precambrian reservoirs sealed by Western Carpathian nappes, southeast slope of the Bohemian Massif, Moravia, Czechoslovakia

Conference · Thu Aug 01 00:00:00 EDT 1991 · Geobyte; (United States)

OSTI ID:5741542

Krejci, J J ^[1]

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1. Moravian Petroleum Co., Hodonin (Czechoslovakia)

The West Carpathian overthrust in Moravia, Czechoslovakia, overlies Proterozoic crystalline basement productive from buried topographic ridges and hills. The Neogene thrust belt forms the seal for oil and gas trapped in the Precambrian crystalline rocks which have been disaggregated by joint, fractures, and weathering. The reservoir rocks include granite, granodiorite, and quartz diorite. Five oil and gas fields have been discovered in this unusual setting. Zdanice-Krystalinikum field is the largest of this type of field in Czechoslovakia (its cumulative production is 66,000 tons of oil), and the ultimate potential is unknown as development is still in process. Three separate pools have been discovered in this field, with differing oil/water contacts and sometimes different oil gravities. These pools appear to be separated by fault zones that have sealed and become impermeable. Other Precambrian reservoir production in Moravia includes East and West Kostelany, West Zdanice, and Korycany fields. Zdanice-Krystalinikum field was discovered using refraction and reflection seismic lines and correlations with previously drilled dry holes which had encouraging shows.

• OSTI ID: 5741542
• Report Number(s): CONF-910978-; CODEN: GEOBE
• Journal Information: Geobyte; (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 0885-6362
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CZECHOSLOVAKIA
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
GEOLOGIC TRAPS
PETROLEUM GEOLOGY
BASEMENT ROCK
FRACTURED RESERVOIRS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
PRECAMBRIAN ERA
PRODUCTION
RESERVOIR ROCK
DEVELOPING COUNTRIES
EUROPE
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
GEOLOGY
MINERAL RESOURCES
RESOURCES
020200* - Petroleum- Reserves
Geology
& Exploration