ABOUT THE UNUSUAL OIL COMPOSITION OF THE UZEN FIELD

The compositional composition of oil from the Uzen field has been studied by gas chromatography-mass spectrometry. For the analysis, we used the oil sampled at the central oil treatment station on February 26, 2020, as well as its fraction up to 60 °C, obtained by simple distillation of the original oil. It was found that in addition to the traditional main components of oil, it contains a high content of valuable unsaturated carboxylic acids and their esters. The composition of the studied oil and its fraction up to 60 °C contains a large amount of methyl esters of Z, Z-9,12-octadecadienoic (7.04 and 1.33 mass%) and Z-6-octadecenoic acids (1.33 and 0.68 mass%), respectively. These substances are the basis for the production of acidol and mylonaft. Also, these acids are the basis for dietary supplements - they belong to w-acids. A table of valuable oil components has been compiled and the price of some of them is presented.