The evaluation of oil fields in and around Diyarbakir in terms of production

The aim of this study is to compare the chemical structure of the oil produced in Diyarbakır with the production formations and to determine the proportions of dissolved gases in the water which may damage the surface equipment. In this context, samples were taken from 19 wells and 6 oil-water separation stations in the oil fields in and around Diyarbakır. The density analysis of the oil samples showed the density distribution of the fields. The highest nickel-vanadium (Ni / V) ratio in petroleum was found to be the highest in the Karadut complex (2,06)> Derdere-Sayındere (1,31)> Sabunsuyu-Derdere (1,14)> Derdere (0.78) formations. Sulfur determination showed high sulfur content of KP-2 and IP-1 samples. Rank of formations in terms of petroleum salinity; Karadut complex (25 ptb)> Sabunsuyu-Derdere (24.5 ptb)> Derdere-Sayındere (5.4 ptb)> Derdere (4.7 ptb). Analyzes were carried out to determine the dissolved gas ratios of the water samples that could damage the equipment. Chloride salinity analysis showed high salinity in KW-2 and KW-6 wells, the amount of dissolved carbon dioxide was found to be high in KW-2 well and IW-2 station. High dissolved oxygen content (6-8 ppm) was determined in KW-12 well. Sulfur, which is corrosive and toxic gas, was higher in KW-8 and KW-9 wells (6-7 ppm) compared to other wells. As a result, wells with high corrosion risk were identified and solutions were presented. Keywords: Petroleum, Diyarbakır, Corrosion, Salinity, Reservoir Water, Mardin Group