Mechanisms of generation of hydrogen sulphide, carbon dioxide and hydrocarbon gases from selected petroleum fields of the Zechstein Main Dolomite carbonates of the western part of Polish Southern Permian Basin: isotopic and geological approach
PBN-AR
Instytucja
Wydział Geologii, Geofizyki i Ochrony Środowiska (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Journal of Petroleum Science and Engineering (40pkt w roku publikacji)
ISSN
0920-4105
EISSN
1873-4715
Wydawca
Tokyo ; Oxford ; New York ; Amsterdam : Elsevier
DOI
URL
Rok publikacji
2017
Numer zeszytu
Strony od-do
380--391
Numer tomu
157
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.85
Autorzy
(liczba autorów: 3)
Pozostali autorzy
+ 1
Słowa kluczowe
EN
stable isotopes
Polish part of the Southern Permian Basin
Zechstein main dolomite gas
Thermochemical and microbial sulphate reduction
origin of hydrogen sulphide
carbon dioxide and hydrocarbon gases
Streszczenia
Język
EN
Treść
In this paper we present the results of analyses of molecular and isotopic (34S/32S in H2S, 13C/12C in CO2, CH4, C2H6 and C3H8, and 2H/1H in CH4) compositions of natural gas and stable sulphur isotope composition of S-organic compounds of oils from the Zechstein Main Dolomite carbonate reservoir of PZ2 cycle and sulphates of Basal Anhydrite of PZ2 and Upper Anhydrite of PZ1 cycles of the western part of Polish Upper Permian Basin. These results related to geological and palaeogeological conditions reveal that: (i) H2S could be generated mainly during thermochemical sulphate reduction (TSR) at the turn of Jurassic and Cretaceous and, in negligible volumes, during microbial sulphate reduction (MSR) and also during thermal decomposition of S-containing compounds of dispersed organic matter and oil; (ii) CO2 was generated during microbial and thermal transformations of organic matter, TSR and MSR processes, and during carbonate dissolution by fluid migration; (iii) the hydrocarbon components were generated by both microbial and thermogenic processes. The microbial methane was generated by fermentation and also during carbon dioxide reduction. Thermogenic hydrocarbons were generated during a single generation process of early low-temperature stage of “oil window” from type II kerogen.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:107863
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