PROSPECTS OF LITHUANIAN SILURIAN SHALE GAS, BALTIC SEDIMENTARY BASIN

The Baltic sedimentary basin contains numerous hydrocarbon fields in Lithuania. The Lower Silurian shales are considered as potential for shale gas exploration. The thickness of shale units within the oil window ranges from 115 to 180 m in west Lithuania. The average total organic carbon (TOC) conte...

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Published inOil shale (Tallinn, Estonia : 1984) Vol. 33; no. 4; p. 357
Main Authors Sliaupa, Saulius, Sliaupiene, Rasa, Zaludiene, Gaile, Vaskaboinikava, Tatsiana, Bibikava, Alena, Evstratenko, Liudmila, Kovkhuto, Andrei
Format Journal Article
LanguageEnglish
Published Tallinn Estonian Academy Publishers 01.01.2016
Teaduste Akadeemia Kirjastus (Estonian Academy Publishers)
Subjects
Alliances
Basins
Basins (Geology)
Carbon
Chemical properties
Gamma rays
Kerogen
Natural gas
Oil exploration
Oil shale
Oil-shales
Pyrolysis
Sedimentation & deposition
Shale
Shale gas
Lithuania
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Summary:The Baltic sedimentary basin contains numerous hydrocarbon fields in Lithuania. The Lower Silurian shales are considered as potential for shale gas exploration. The thickness of shale units within the oil window ranges from 115 to 180 m in west Lithuania. The average total organic carbon (TOC) content of the Lower Silurian shales is about 1.0-1.2%, with an elevated content averaging 6.7% in the Aeronian black shales. The organic matter (OM) is Type II kerogen. Pyrolysis analysis shows moderate thermal maturity parameters; T sub( max) is from 428 degree C in central Lithuania to 455 degree C in the west of the country, implying the oil generation stage. It is concluded that the burial conditions were favorable for oil generation, while the gas potential of Silurian shales is rather limited.
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ISSN:0208-189X
1736-7492
DOI:10.3176/oil.2016.4.04