One of the promising areas for Angarsk Petrochemical Company JSC which is a subsidiary of Rosneft Oil Company is the production of special products for oil production enterprises that experience a shortage of certain resources due to sanctions. These special products include components for drilling mud preparation. The article presents the results of the development of a low-viscosity hydrocarbon base for drilling mud (LVHBDM) with stricter environmental requirements for oil production enterprises at Angarsk Petrochemical Company JSC. According to the quality requirements for LVHBDM for offshore oil production at Sakhalinmorneftegaz-Shelf JSC, a subsidiary of Rosneft PJSC, the aromatic hydrocarbon content should not exceed 0,8 % by weight, and the sulfur content should not exceed 2 mg/kg. At the same time, there are strict requirements for LVHBDM in terms of its performance properties: viscosity, flash and pour points, and the content of organochlorine compounds. As a result of these studies, a technology for producing LVHBDM was developed using combined processes of deep hydrogenation and light hydrocracking of the vacuum distillate from primary oil refining, followed by the separation of the target fraction from the hydrogenate using a distillation unit. The LVHBDM was successfully tested in an oil and gas production company of the Rosneft Oil Company Group. Measures were taken to put the LVHBDM into industrial production. The developed LVHBDM production technology is highly cost-effective.
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