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Doklady Earth Sciences

, Volume 483, Issue 1, pp 1413–1417 | Cite as

Peculiarities of Hydrocarbon Generation at Great Depths in the Crust

  • V. Yu. Kerimov
  • R. N. Mustaev
  • A. V. OsipovEmail author
GEOLOGY
  • 17 Downloads

Abstract

This article describes the peculiarities of hydrocarbon generation at great depths in the Earth’s crust. It is shown that all the conditions necessary for generation of oil and gas are kept at great depths in the crust in the zones of high pressures and temperatures. However, generation of hydrocarbons in such settings significantly differs from the processes of oil and gas formation at shallow depths. A complex system of mutual thermobaric factors and distribution of the oil and gas potential at great depths was revealed: the start of generation and the phase distribution of hydrocarbons in the section are largely affected by settling of abnormally high pore pressure, as well as by paleotemperatures that could differ considerably from the present-day ones depending on the age of deposits. It is shown that different thicknesses of catagenetic zones are related to the kinetic rate of oil and gas generation, which depends on the type of kerogen, the gradient of temperature change, pressure, lithology, and hydrogeological conditions of the host rocks, the sedimentation rate, and other factors.

Notes

ACKNOWLEDGMENTS

This work was supported by the Ministry of Science and Education of the Russian Federation (government-financed project 5.2907.2017/4.6 of the Gubkin State University).

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • V. Yu. Kerimov
    • 1
    • 2
  • R. N. Mustaev
    • 1
    • 2
  • A. V. Osipov
    • 1
    Email author
  1. 1.Gubkin Russian State (National Research) University of Oil and GasMoscowRussia
  2. 2.Russian State Geological Prospecting UniversityMoscowRussia

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