Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)
Investigation of geochemical and petrophysical changes over the Ždánice hydrocarbon deposit
AbstractStudy of geochemical and petrophysical changes over the hydrocarbon deposit Zdánice, 30 km ESE from Brno, Czech Republic, has focused on the possibility of identification of these changes and their specification for prospecting purposes. A complex research over the productive zone of the deposit (11 km2) and in the surroundings, implying geological mapping, drilling of 18 shallow boreholes, logging and sampling in boreholes, field geophysical measurement of natural radionuclides K, U(Ra) and Th, radon and thoron in soil gas, thermometry and gas permeability of soils, conducted on two (6.8 km and 8.3 km) regional profiles, and laboratory determination of elemental contents and minerals, magnetic susceptibility, carbon and sulphur components, permeability and density of rocks, was performed in 2003 and 2004. In order to distinguish the geochemical and petrophysical parameters, data are grouped into two sets and statistical methods are applied in the present time.