The effects of the composition of herbal origin, prepared at the ratio of gossypol resin:MARZA-1=3:1 (MARZA-1 is a reagent of surfactant organic origin with a halogen atom and three triple bonds in the molecule), on the paraffin sediment in high-paraffin oil and the kinetics of sediment formation was investigated under laboratory condition. An oil sample produced from Narimanov deposit was used for the experiment. It was found that the most of asphaltene-resin-paraffin sediment (ARPS) emerged at the temperature of 200C and formed 28.7%. However, at the same temperature, the amount of sediment in the oil with the addition of 700 g/t composition was reduces by 4 times and the protective effect of the reagent was 76%. As the oil temperature rises, the protective activity of the composition decreased. Thus, it was 57%, 39%, and 6.5% at 300C, 400C, and 500C, respectively. The rate of paraffin sediment formation was reduced by 1.75 times, 2.3 times and 3.5 times when the temperature was increased from 200C to 300C, 400C, and 500C, respectively. The highest rate of sediment formation in all temperature intervals under study is mainly observed during the first five minutes of the process. As the duration of the process increases, the rate decreases by 3–4 times depending on the temperature. The composition significantly reduces the rate of sediment formation by retaining the paraffin hydrocarbon crystals dependent on the oil volume. As compared with the reagent-free oil, the rate is reduced by an average of 2.3 times in the temperature interval of 20–300C. However, the rate of sediment formation in reagent-free and reagent-added oil is reduced by 1.5 times at 40–500C. The group composition of asphaltene-resin-paraffin sediments varies depending on the accumulation of oil sediments. The amount of paraffin hydrocarbons increases sharply in the sediment obtained from the original oil during the first 5–15 minutes, and practically does not vary during subsequent periods. On the other hand, paraffin hydrocarbons/asphaltene-resin ratio in the original oil increases from 1.2 to 2.2 over time, indicating that the sediment contains paraffin and paraffin hydrocarbons play a crucial role in the sediment formation process. However, after the application of the reagent, the amount of paraffin hydrocarbons in the ARPS decreases by 8–13%, depending on the time, as compared with the original oil.

For the first time in the laboratory, the physical and chemical characteristics of the model oil sample, the composition, and relative amounts of normal alkanes with carbon atoms from C8 to C60 were determined by high-temperature liquid-gas chromatography. When Difron-4201 is added to the model oil, seven carbon atoms are displaced in the direction of the lower molecular weight distribution of paraffin hydrocarbons in the sediment. The effect of the Difron-4201 additive on the group composition of model oil and oil sediments obtained at different temperatures of the "cold finger" was studied. It was found that with the addition of the additive and with a decrease in the temperature of model oil and "cold pipe", the number of paraffin hydrocarbons in the group composition of sediment increases and the amount of resin and asphaltenes decreases. Microanalysis of the structure of asphaltene–resin–paraffin sediments obtained after the addition of the additive showed that the model oil sediments, separated at 30/1500C and containing large amounts of high-molecular paraffin hydrocarbons, resin, and asphaltene components, have the highest proportion of amorphous structures. An increase in the share of dendritic modification of the crystalline structure is characteristic for paraffin hydrocarbons in sediments obtained with the addition of 900 g/t "Difron-4201" additive.