Geology Reference
In-Depth Information
mechanism of cross-flow/injection geo-hydrodynamic
systems and was designed based on hydro-geochemical,
piezometric, hydraulic, geothermal and other parameters.
It allows for the solution with sufficient accuracy of the
forecast interpolation problems evaluating the perspectives
and hydrocarbon reserves on local structures and regional
zones of their accumulation within the known oil and gas
areas. It also allows for the extrapolation of the general
trends into the undrilled areas and prospects.
18. For all reviewed regions, qualitative criteria and quantita-
tive structural-tectonic, hydrochemical, geobaric, geother-
mal and hydro-geodynamic attributes for the identification
of zones of the predominant oil- or gas-accumulations were
developed. Also developed was a complex of the optimal
geo-fluid-dynamic conditions of high-probability oil and
gas occurrences on local structures.
19. A technique was developed for the quantitative estimation
of hydrocarbon reserves as a function of geo-fluid-dynamic
processes.
The following items are conceptual novelties in the conducted study:
t
The authors' concept of the formation of the existing oil-
and gas-saturation in the Alpine mobile belt regions under
a relatively insignificant effect of the infiltration (to a depth
of 0.2-0.5 km) and elision (mostly to depth of 2 km) com-
ponents of the hydrodynamic regime. The fluid flow in the
deeper ranges occurs at the activation stage of the neotec-
tonic processes (mostly as affected by the pulsating-injection
predominantly subvertical flow through disruptions of the
rock integrity).
t
The concept developed by the authors of the formation of
commercial hydrocarbon saturation in the Alpine mobile
belt regions as a result of geo-fluid-dynamic processes (the
drainage of natural reservoirs, the oil and gas accumulation
mostly due to functioning of cross-flow/injection hydro-
dynamic systems with its mandatory localization, mostly
within the depth range of up to 3.5-4 km). The process
occurs in the environment and areas of contrasting local dis-
ruptions of regional hydrogeological fields (spatially associ-
ated and genetically conjoined).
