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Title: Geochemical features of two-phase hydrocarbon-pool formation in northern West Siberia

Abstract

Gas-condensate pools that have oil rings occur widely in West Siberia, and much attention has been given to their formation and occurrence. Virtually all possible processes producing such pools have been found to occur here, from the single entry of saturated fluid into a trap followed by differentiation as the formation pressure falls to separate entry in different sequences for the oil and gas. The authors use the content of aromatic hydrocarbons as an index of the migration of oil and gas. Arene distributions in the light fractions of oils and condensates from the Neocomian beds in West Siberia are largely related to features of fluid generation and migration. Two-phase pools containing primary condensates occur in these beds, which is explained by a model based on different forms of fluid migration. They are controlled not only by fluid generation features (different ratios of liquid and gaseous hydrocarbon) but also by the relationships in time and space between the clayey and sandy rocks, which give rise to qualitative differences in consolidation and thus to differences in fluid migration in zones adjoining the reservoirs and in zones farther away.

Authors:
;
Publication Date:
OSTI Identifier:
7053340
Resource Type:
Journal Article
Journal Name:
Int. Geol. Rev.; (United States)
Additional Journal Information:
Journal Volume: 29:9; Other Information: Translated from Geologiya Nefti I Gaza; No. 6, 19-23(1987)
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; AROMATICS; CHEMICAL ANALYSIS; GAS CONDENSATE FIELDS; ORIGIN; GAS CONDENSATES; PETROLEUM; SIBERIA; CLAYS; CORRELATIONS; ENVIRONMENTAL TRANSPORT; GEOLOGIC MODELS; GEOLOGIC TRAPS; HYDROCARBONS; RESERVOIR PRESSURE; SANDSTONES; TIME DEPENDENCE; TWO-PHASE FLOW; ASIA; CONDENSATES; EASTERN EUROPE; ENERGY SOURCES; EUROPE; FLUID FLOW; FLUIDS; FOSSIL FUELS; FUELS; GEOLOGIC DEPOSITS; LIQUIDS; MASS TRANSFER; MINERAL RESOURCES; NATURAL GAS DEPOSITS; NATURAL GAS LIQUIDS; ORGANIC COMPOUNDS; PETROLEUM DEPOSITS; RESOURCES; ROCKS; SEDIMENTARY ROCKS; USSR; 020200* - Petroleum- Reserves, Geology, & Exploration; 023000 - Petroleum- Properties & Composition

Citation Formats

Gushchin, V A, and Ryl'kov, A V. Geochemical features of two-phase hydrocarbon-pool formation in northern West Siberia. United States: N. p., 1987. Web. doi:10.1080/00206818709466205.
Gushchin, V A, & Ryl'kov, A V. Geochemical features of two-phase hydrocarbon-pool formation in northern West Siberia. United States. https://doi.org/10.1080/00206818709466205
Gushchin, V A, and Ryl'kov, A V. 1987. "Geochemical features of two-phase hydrocarbon-pool formation in northern West Siberia". United States. https://doi.org/10.1080/00206818709466205.
@article{osti_7053340,
title = {Geochemical features of two-phase hydrocarbon-pool formation in northern West Siberia},
author = {Gushchin, V A and Ryl'kov, A V},
abstractNote = {Gas-condensate pools that have oil rings occur widely in West Siberia, and much attention has been given to their formation and occurrence. Virtually all possible processes producing such pools have been found to occur here, from the single entry of saturated fluid into a trap followed by differentiation as the formation pressure falls to separate entry in different sequences for the oil and gas. The authors use the content of aromatic hydrocarbons as an index of the migration of oil and gas. Arene distributions in the light fractions of oils and condensates from the Neocomian beds in West Siberia are largely related to features of fluid generation and migration. Two-phase pools containing primary condensates occur in these beds, which is explained by a model based on different forms of fluid migration. They are controlled not only by fluid generation features (different ratios of liquid and gaseous hydrocarbon) but also by the relationships in time and space between the clayey and sandy rocks, which give rise to qualitative differences in consolidation and thus to differences in fluid migration in zones adjoining the reservoirs and in zones farther away.},
doi = {10.1080/00206818709466205},
url = {https://www.osti.gov/biblio/7053340}, journal = {Int. Geol. Rev.; (United States)},
number = ,
volume = 29:9,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 1987},
month = {Tue Sep 01 00:00:00 EDT 1987}
}