By V.I. Djunin, A. V. Korzun
This e-book examines the theories surrounding the beginning of oil and the formation of hydrocarbon fields from a hydrogeological standpoint. This beneficial study standpoint is usually ignored, but it's the deep petroliferous basins that carry the main hydrocarbon accumulations. The fluids at those degrees play an important half within the formation, upkeep, and destruction of mineral deposits. gaining knowledge of simply how the fluids are shaped may make clear many features of functional geology.
The ebook analyzes neighborhood and neighborhood regularities within the formation of deep fluids in petroliferous basins. The textual content discusses the various varied theories of oil starting place and encompasses a precis of the theoretical, experimental, and empirical information on petroliferous basins received by means of geochemical, geodynamic, fluidodynamic, and different studies.
The authors current latest perspectives at the geodynamics of fluids at deep degrees, discover intimately the improvement of abnormally excessive formation pressures and view peculiarities in warmth and mass move at deep degrees for various regions.
• Petroliferous basins
• Elision recharge
• Hydrocarbon accumulations
• Oil formations
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Extra info for Hydrogeodynamics of Oil and Gas Basins
The plots are compiled with account for the influence of different factors on density; for water density determined in standard conditions (laboratory) (Fig. 2a); for water density determined in formation conditions with account for temperature and compressibility (Fig. 2b); and in formation conditions with account for gas saturation, temperature, and compressibility (Fig. 2c). The field of points is bounded by straight lines. They could be limited by any nonlinear empirical curve, but this is unimportant for the problem under consideration.
4 Schematic potentiometric map of the groundwater surface in upper Frasnian–Tournaisian sediments of the Khoreiver Depression (Pechora petroliferous basin) . 6 Methods of Compiling Hydrogeodynamic Maps 33 Ob Estuary 40 1 2 3 20 20 40 . R m Pur R. y d 40 a N 60 100 Ob R. 140 Ir ty sh R. To b ol R. Tyumen 80 Nizhnevartovsk 0 120 Khanty-Mansiisk 80 10 140 60 Omsk 120 Fig. V. Nelyubin). 6 Methods of Compiling Hydrogeodynamic Maps In order to unambiguously answer the question as to what determines the regional decrease in reduced formation pressures (heads) of fluids from the periphery of the petroliferous basins toward their central most subsided parts, both potentiometric maps and hydrodynamic maps or schemes are needed [orthogonal net of heads (reduced fluid pressures) and flow directions].
In our opinion, schematic maps of changes in lateral groundwater expenditures are most convenient for presentation of factual material and corresponding calculation results since they characterize with sufficient detail regional regularities in expenditures of subsurface fluids as well as gradients, flow velocities, and total flow values (vertical hydrodynamic interaction between neighboring petroliferous formations or aquifers). In addition, they also make it possible to compare hydrodynamic conditions of separate productive formations, to establish duration of the fluid exchange, and to define hydrodynamic zones in the petroliferous basin (Chapters 7, 9, and 10).