Geology Reference
In-Depth Information
Geotemperature Field in Alpine
Mobil Belt Basins
Geotemperature regime of the subsurface is among the most important
factors determining hydrocarbon generation conditions and characteriz-
ing oil and gas migration and accumulation environment in sedimentary
rocks. Significant role of Earth's depth heat is not only in its controlling
effect on the transformation of the source organic matter and all subse-
quent physicochemical alterations in the composition of natural fluids,
their mobility in the migration processes and phase state. It also carries
the application aspect important for the oil and gas potential forecast and
selection of exploration plays. It provides practical capability of using the
data about regional and local geothermal field disruptions for tracking
hydrocarbon migration paths, determining discharge zones, areas and foci
of geo-fluid-dynamic systems. This is important as commercial oil and
gas occurrences are usually formed and located within their functioning
areals (Krotova, 1975; Rachinsky, 1982). This is a reason why temperature
conditions in the geologic section of oil and gas regions, areas, zones and
prospects may be strong arguments in oil and gas exploration. They may
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