Geochemical Study and Genetic Classification of Fahlian Reservoir Oil Using Infrared Spectroscopy in the Fields of Southwestern Iran

The first step in performing geochemical adaptations is to identify the molecular and hybrid structure of the oil. One way to match the use of infrared spectroscopy is to identify and compare the structure of oil samples. Infrared spectroscopy is a practical method with easy, low-cost interpretation and reliable results for determining the structure of organic compounds. Also, considering the significant growth of the tendency to develop fast, accurate and reliable analytical methods for industrial applications and also the discovery of new hydrocarbon resources in the sedimentary basin of Abadan plain such as Darkhoein and Yadavaran oil fields in recent years, indicates the need for more comprehensive studies. There is a sedimentary basin in this basin. Based on this, 15 samples of crude oil from Fahlian reservoir were selected and examined in the most important oil fields of this basin, namely Darkhoein (9 samples) and Yadavaran (6 samples) located in southwestern Iran. By dividing the samples by evaluating the crude oil, different analytical goals were achieved. Using infrared spectroscopy, the functional groups in the samples were determined and then the amount of these compounds in different samples was compared with each other. Based on the results of the mass spectrometer, the oils studied in this basin are divided into three families with different genetic characteristics. In this study, it was shown that infrared spectrometer is a fast, reliable and non-destructive analytical option and a complementary or even alternative method of chromatography and biomarkers analysis to perform various scientific and industrial purposes in the oil industry, including quality measurement, Quantity and geochemical evaluation of oil.