Open AccessTECTONIC FEATURES OF MONOCLINES AT THE JUNCTION ZONE OF DNIEPER-DONETS SEDIMENTARY BASIN IN VIEW OF IDENTIFYING UNCONVENTIONAL HYDROCARBONS
Author(s) -
O. Okrepkyi,
I. Karpenko
Publication year - 2013
Publication title -
geolog ukraïni/geolog ukraì̈ni
Language(s) - English
Resource type - Journals
eISSN - 2786-5509
pISSN - 1727-835X
DOI - 10.53087/ug.2013.3(43).245537
Subject(s) - geology , unconformity , sedimentary rock , tight gas , shale gas , lithology , tectonics , geochemistry , unconventional oil , oil shale , natural gas , structural basin , petrology , source rock , permeability (electromagnetism) , paleontology , hydraulic fracturing , chemistry , organic chemistry , membrane , biology , genetics
Currently unconventional gas is considered to be coal bed methane, shale gas and tight gas. In our opinion, to this list should be added gas deposits controlled by inner surface unconformities in sedimentary rock complexes. Despite signs of «traditional» reservoirs – corresponding structural forms and others, specific features of their occurrence (under and above the unconformities with predominance of lithologic and stratigraphic factors in the formation of traps) can attribute them to unconventional gas. Even though there are all prerequisites to consider them as common types of deposits, they do not still refer to in integer directed search process. Add to this that these types of traps may also be characterized by the presence of «unconventional» gas properties such as low permeability, porosity, etc.