Relation of the grain size, petrophysical parameters, and Fourier transform infrared analysis of Kusuri sandstones in the Zonguldak subbasin of the West Black Sea, Turkey

摘要

The Zonguldak subbasin has recently attracted attention due to the identification of unexplored areas for hydrocarbon potential. Here, I present the first detailed reservoir investigation of Kusuri Formation sandstones in a well around Bartm, located in the Zonguldak subbasin of the West Black Sea. I employed an integrated approach that includes petrography, well logging, petrophysical analysis, and Fourier transform infrared analysis for reservoir characterization. The purpose of this study is to investigate the relation of the grain size, petrophysical parameters, and Fourier transform infrared analysis of Kusuri sandstones. The Kusuri Formation sandstones are divided into three groups based on their grain size using petrographic analyses. Group 1 is composed of 0.4-0.6 mm grains, group 2- of 0.3 mm grains, and group 3- of very fine grains (0.1-0.2 mm). Group 1 and group 2 sandstones of the Kusuri Formation exhibit medium-good petrophysical characteristics. The presence of hydrocarbons was determined using attenuated total reflection- Fourier transform infrared (ATR-FTIR) analysis. The results show that the Kusuri sandstone interval has medium-good reservoir properties and a high potential to produce hydrocarbons increasing the reserves in the study area.