Vol. 9 4, 2019 p 402-407


Article name, authors, abstract and keyword


An approach to assessing the performance of paraffin inhibitors

Egor S. Dubovoy a, Nafis N. Khafizov b, Andrey A. Kuznetsov b

a Transneft, 4, bldg 2, Presnenskaya Embankment, Moscow, 123112, Russian Federation
b Pipeline Transport Institute, LLC (Transneft R&D, LLC), 47a Sevastopolsky Prospect, Moscow, Russian Federation

DOI: 10.28999/2541-9595-2019-9-4-402-407

Abstract: The advantages and disadvantages of the basic methods of asphalt-resin-paraffin deposits (ARPD) removal are noted and it has been established that the most effective method to prevent or slow down the formation of ARPD is the dosed introduction of paraffin deposition inhibitors into the oil flow. The procedure for performing work on the selection of effective inhibitors for the studied MP sections in laboratory conditions is described. The analysis of operational and temporal parameters of test methods used by manufacturers of chemical reagents was carried out. This analysis allowed to establish that the controlled parameters of tests differ significantly from each other, and the selected test conditions do not correspond to the field conditions and do not allow to model the processes of formation ARPD. In order to simulate the conditions of oil transportation in the studied pipeline sections, taking into account oil physicochemical properties, the period and conditions of use of inhibitors, a test procedure was developed. Based on the results of evaluating the effectiveness of inhibitors, the feasibility of developing a system for controlling their quality was determined and the main directions for the development of this system were proposed.

Keywords: oil, paraffin inhibitor, asphaltene-resin-paraffin deposits, pipeline cleaning methods, estimation of inhibitor efficiency, laboratory studies.

For citation:
Dubovoy E. S., Khafizov N. N., Kuznetsov A. A. An approach to assessing the performance of paraffin inhibitors. Nauka i tehnologii truboprovodnogo transporta nefti i nefteproduktovScience & Technologies: Oil and Oil Products Pipeline Transportation. 2019;9(4):402407.

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