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HYDROCARBON TRAP TYPES ON THE BLACK SEA OFFSHORE ROMANIA
Abstract
The first oil discovery from Romanian Black Sea area was in 1987, relatively late compared with the first successful Romanian onshore well, more than 100 years earlier. Starting from that moment and continuing till recent years, several discoveries were done; some are already put into production and some others are still in the exploration phase. In order to extract as much oil as possible and also to define new hydrocarbon reservoirs, it is mandatory to have a proper understanding of the petroleum systems from the area. A petroleum system is represented by all the elements (source rock, reservoir rock, seal and trap), together with the processes (generation, migration, accumulation and preservation) which together lead to a hydrocarbon accumulation. Because the Black Sea basin has a complex geology, with combined tectonic regime, extensional at the opening of the basin converted to compressional regime in the later stages, and also with different stratigraphic features, the resulted traps are structural, stratigraphic or combined, with different characteristics. The purpose of this article is to analyze the traps which were identified in the Romanian Black Sea area, both in shallow and deep water zones, to classify them and understand how were formed. This aspect has a big impact in the grasp of the reservoir extensions as well as in identifying the best place for drilling of new wells.
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References8
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