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Catagenesis effect on the Visean carbonate rocks in the central part of the Dnieper-Donets basin
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 16th International Conference on Geoinformatics - Theoretical and Applied Aspects, May 2017, Volume 2017, p.1 - 5
Abstract
There are research results about catagenetical (late-diagenetical) alterations of Visean carbonate rocks in the area of Dnieper-Donets basin (DDB) pre-axial zone. These changes were caused by high temperatures, pressures and fluid migration flow. A precise investigation of secondary processes showed that they play an important role in regards to formation of the porosity and permeability in carbonate rocks. The subjection within intensity of secondary alterations and pressure-and-temperature conditions of the strata has been defined here. Consequently, all investigated strata can be divided in up to: a zone without crucial changes, a compacted altered zone with decreased filtration capacity properties and another altered zone with increased reservoir properties. Observation and chronical analysis of all secondary processes could help to restore the content and migration stages of hydrocarbon fluids.