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Book Chapter

Petroleum potential of the eastern Black Sea and deep-water exploration review

Published:
January 01, 2018

Abstract

The Rioni Basin is an underexplored petroliferous basin located at the Georgian margin of the Black Sea flanked by two folded belts (the Greater Caucasus and the Achara–Trialet Belt). Whereas the stratigraphy of the northern onshore Rioni Basin has elements which are common with that of the offshore Shatsky Ridge, the southern onshore Rioni Basin segment is both stratigraphically and structurally akin to the offshore Gurian folded belt in the eastern Black Sea. In the northern basin segment, the existing oil fields (East and West Chaladidi) and an undeveloped oil discovery (Okumi) are related to either post-salt or pre-salt antiformal traps in detachment folds or in poorly understood stratigraphic pinchouts beneath a regional Upper Jurassic evaporite sequence. In the southern Rioni Basin, the oil in existing fields has either anticlinal four-way closures (Supsa) or a subthrust trap (Shromisubani) related to the leading edge of the north-vergent Achara–Trialet folded belt. Despite the long history of petroleum exploration in the Rioni Basin, these proven plays are not fully understood and systematically explored using modern technology. The existence of an Upper Jurassic regional evaporite seal highlights the possibility of pre-salt plays in the northern part of the basin.

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Geological Society, London, Special Publications

Petroleum Geology of the Black Sea

M. D. Simmons
M. D. Simmons
Halliburton, UK
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G. C. Tari
G. C. Tari
OMV, Austria
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A. I. Okay
A. I. Okay
Eurasia Institute of Earth Sciences, Turkey
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Geological Society of London
Volume
464
ISBN electronic:
9781786203724
Publication date:
January 01, 2018

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