CATALYTIC AND THERMAL PROCESSES IN OIL AND GAS FORMATION

2019 ◽  
pp. 61-65
Author(s):  
A.Ya. Kuklinsky ◽  
Keyword(s):  
Oil And Gas ◽  
Thermal Processes ◽  
Gas Formation

scholarly journals Deep Structure, Tectonics and Petroleum Potential of the Western Sector of the Russian Arctic

2021 ◽  
Vol 9 (3) ◽  
pp. 258
Author(s):  
Alexey S. Egorov ◽  
Oleg M. Prischepa ◽  
Yury V. Nefedov ◽  
Vladimir A. Kontorovich ◽  
Ilya Y. Vinokurov
Keyword(s):  
Oil And Gas ◽  
Deep Structure ◽  
Sedimentary Basins ◽  
The Arctic ◽  
Russian Arctic ◽  
Petroleum Potential ◽  
Western Sector ◽  
Gas Formation ◽  
Evolutionary Genetic ◽  
Tectonic Scheme

The evolutionary-genetic method, whereby modern sedimentary basins are interpreted as end-products of a long geological evolution of a system of conjugate palaeo-basins, enables the assessment of the petroleum potential of the Western sector of the Russian Arctic. Modern basins in this region contain relics of palaeo-basins of a certain tectonotype formed in varying geodynamic regimes. Petroleum potential estimates of the Western Arctic vary broadly—from 34.7 to more than 100 billion tons of oil equivalent with the share of liquid hydrocarbons from 5.3 to 13.4 billion tons of oil equivalent. At each stage of the development of palaeo-basins, favourable geological, geochemical and thermobaric conditions have emerged and determined the processes of oil and gas formation, migration, accumulation, and subsequent redistribution between different complexes. The most recent stage of basin formation is of crucial importance for the modern distribution of hydrocarbon accumulations. The primary evolutionary-genetic sequence associated with the oil and gas formation regime of a certain type is crucial for the assessment of petroleum potential. Tectonic schemes of individual crustal layers of the Western sector of the Russian Arctic have been compiled based on the interpretation of several seismic data sets. These schemes are accompanied by cross-sections of the Earth’s crust alongside reference geophysical profiles (geo-traverses). A tectonic scheme of the consolidated basement shows the location and nature of tectonic boundaries of cratons and platform plates with Grenvillian basement as well as Baikalian, Caledonian, Hercynian, and Early Cimmerian fold areas. Four groups of sedimentary basins are distinguished on the tectonic scheme of the platform cover according to the age of its formation: (1) Riphean-Mesozoic on the Early Precambrian basement; (2) Paleozoic-Cenozoic on the Baikalian and Grenvillian basements; (3) Late Paleozoic-Cenozoic on the Caledonian basement; (4) Mesozoic-Cenozoic, overlying a consolidated basement of different ages. Fragments of reference sections along geo-traverses illustrate features of the deep structure of the main geo-structures of the Arctic shelf and continental regions of polar Russia.

GEOCHEMICAL CONDITIONS OF OIL AND GAS FORMATION IN THE SUBSALT BEDS OF THE SOUTHWESTERN CASPIAN BASIN

1984 ◽  
Vol 26 (7) ◽  
pp. 803-809
Author(s):  
G. P. Bylinkin ◽  
O. K. Navrotskiy ◽  
I. N. Sidorov ◽  
I. V. Oreshkin
Keyword(s):  
Oil And Gas ◽  
Caspian Basin ◽  
Geochemical Conditions ◽  
Gas Formation

scholarly journals New representations on oil and gas origin in connection with the opening of the phenomenon of reserves replenishment in exploited oil fields

Georesursy ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 34-39
Author(s):  
Azariy A. Barenbaum
Keyword(s):  
Oil And Gas ◽  
Oil Fields ◽  
Main Role ◽  
Economic Activities ◽  
Gas Formation ◽  
Long Time ◽  
New Ideas ◽  
Origin Of Oil ◽  
Water Cycles

New ideas about the origin of oil and gas are discussed. They are caused by the discovery of the phenomenon of replenishment of oil and gas reserves in exploited fields. This phenomenon was discovered by the Russian geologists a quarter of a century ago, and a little later it was theoretically justified on the basis of the biosphere concept of oil and gas formation. As a result, the well-known «organic hypothesis» and «mineral hypothesis», which have long time competed in oil and gas geology are being replaced by new representations today, according to which oil and gas are the inexhaustible useful fossils of our planet. And their deposits are traps of movable carbon that circulates via the Earth’s surface in three main cycles with periods of ~108-109, ~106 -107 and ≈ 40 years. The 40-year carbon biosphere cycle, which was not previously taken into account at all, plays a main role in replenishment of deposits. Its accounting makes it possible to balance the carbon and water cycles in the biosphere, taking into account the economic activities of people and modern formation of oil and gas in the bowels, and also open up the possibility of exploiting deposits as constantly replenished sources of hydrocarbons.

Genetic aspects of oil-and-gas formation, sulfur and metal contents of oil

2009 ◽  
Vol 424 (1) ◽  
pp. 171-174
Author(s):  
M. A. Luré ◽  
F. K. Schmidt
Keyword(s):  
Oil And Gas ◽  
Gas Formation ◽  
Metal Contents

scholarly journals Conditions of oil and gas formation in the territory of the Eastern and Central Ciscaucasia

2020 ◽  
pp. 63-72
Author(s):  
D. D. Ismailov ◽  
S. G. Serov ◽  
R. N. Mustaev ◽  
A. V. Petrov
Keyword(s):  
Phase Composition ◽  
Oil And Gas ◽  
Sedimentary Cover ◽  
Research Area ◽  
Hydrocarbon Generation ◽  
Program Complex ◽  
Basin Modelling ◽  
The North ◽  
Gas Formation ◽  
Hydrocarbon Saturation

The results of studies of hydrocarbon systems of the Eastern and Central Ciscaucasia are shown. The research area covers part of the Scythian platform, namely, the northern side of the Terek-Caspian foredeep, the north-eastern part of the East Kuban depression, the Tersko-Kum depression and the Stavropol arch. Based on the results of the work and basin modelling of hydrocarbons generation, emigration and accumulation processes, the reconstruction of the history of oil and gas formation and oil and gas accumulation in the sedimentary cover of the region was completed. The basin modelling of hydrocarbon formation processes in Central and Eastern Ciscaucasia was carried out using the PetroMod (Schlumberger) program complex. The obtained results made it possible to determine the dynamics of organic substance transformation processes, evolution of oil and gas formation zones, time and expected paths of hydrocarbon migration and phase composition and degree of hydrocarbon saturation of the section. The model reliability was corrected by comparing the values of benchmarks (modern reservoir temperatures measured in wells, with their calculated values obtained as a result of modelling). The location of possible foci of hydrocarbon generation in the sedimentary cover, the migration paths, the phase composition of hydrocarbons, the intensity of hydrocarbon saturation within individual tectonic zones and structures were determined. It has been established that the main foci of hydrocarbon generation in the southern part of the studied region are located in the Chechen depression (Tersko-Caspian deep), on the platform part–in the zone of the Manych deep and Nogai stage.

COMPARISON OF MODERN GEODYNAMIC MODES OF FRAMING OF THE EUROASIAN LITHOSPHERIC PLATE

2021 ◽  
pp. 12-18
Author(s):  
Yu. Kutinov ◽  
Z. Chistova ◽  
T. Belenovich
Keyword(s):  
Subduction Zone ◽  
Oil And Gas ◽  
Lithospheric Plate ◽  
The Arctic ◽  
Rift System ◽  
Southwestern Part ◽  
Baikal Rift System ◽  
Gas Formation ◽  
Compressive Stresses ◽  
Favorable Conditions

The purpose of the work is to analyze the modern geodynamic mode of framing of the Eurasian lithospheric plate to determine the types of deformations in the structures of spreading, subduction and rift genesis and favorable conditions for oil and gas formation at certain stages of structure development. The authors have analyzed the Arctic spreading zone, the Kamchatka subduction zone, the southwestern part of Eurasia and the Baikal rift system. The author's development of calculation of slip vectors of rock masses in foci of earthquakes and methods of tensor analysis of mechanics of fractured media were used in the work. Differences and similarities between the Arctic spreading zone, the Kamchatka subduction zone, the southwestern part of Eurasia and the Baikal rift system are shown. All of the above structures have a complex layered-block structure. That is, in a layered-block medium in layers, and in individual blocks and in time, the stress-strain state of the lithosphere changes, which directly depends on the direction of the axes of compressive stresses

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