FORMATION CONDITIONS OF GROUNDWATER OF THE UPPER JURASSIC OF THE CENTRAL REGIONS OF THE ZAURAL MEGAMONOCLYSIS-Reference-Cited by-同舟云学术

FORMATION CONDITIONS OF GROUNDWATER OF THE UPPER JURASSIC OF THE CENTRAL REGIONS OF THE ZAURAL MEGAMONOCLYSIS

Published:2021-05-21 Issue:1 Volume:2 Page:181-190
ISSN:2618-981X
Container-title:Interexpo GEO-Siberia
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Author:

Novikov Dmitry A.¹,Pyrayev Aleksandr N.²,Dultsev Fedor F.³,Chernykh Anatoliy V.³,Bakustina Svetlana V.⁴,Ulyanov Dmitry V.⁴

Affiliation:

1. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS; Novosibirsk State University

2. Sobolev Institute of Geology and Mineralogy SB RAS; Novosibirsk State University

3. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS

4. LLC "NOVATEK STC"

Abstract

The article presents the first results of complex isotope-hydrogeochemical studies of reservoir waters of the Upper Jurassic deposits of the central regions of the Zaural megamonoclysis. It was shown that most waters have a narrow distribution of oxygen and hydrogen isotopes (δD from -103.2 to -85.6 ‰ and δO from -15.4 to -12.9 ‰). Some of them have pronounced excursions on the isotopic composition, which indicates a difference in their genesis: from condensate to mixed with ancient infiltrogenic. The isotopic composition of carbon of water-dissolved carbon dioxide (δС from -41.6 to -16.3 ‰) indicates its biogenic origin and the possibility of interstratal flows from overlying horizons.

Publisher

Siberian State University of Geosystems and Technologies

Subject

Industrial and Manufacturing Engineering

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