English

Vol. 9 4, 2019 p 402-407

Pages

Article name, authors, abstract and keyword

402-407

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.

References:
[1] Lisin Y. V., Soshchenko . . Technologies of the main oil pipeline transport of Russia. Moscow: Nedra Publ.; 2013. 421 p. (In Russ.)
[2] Shammazov . ., Mastobaev B. N., Soshchenko . ., Korobkov G. E., Pisarevsky V. M. Foundations of technical diagnostics of oil and oil products pipeline systems. Saint Petersburg: Nedra Publ.; 2010. 428 p. (In Russ.)
[3] Antipyev V. I. Determining the frequency for paraffin deposits cleaning of oil pipeline. Transport and Storage of Oil and Oil Products. 1976(9):2224. (In Russ.)
[4] Klimovsky . ., Seliverstov V. G. Improving the technology and tools for pipeline cavity cleaning. Stroitelstvo truboprovodov. 1971(8):89. (In Russ.)
[5] Dmitriev . ., Khasanova . I., Aslaeva R. N. Development of experimental studies of the process of oil trunk pipelines paraffinization. History of Science and Engineering. 2011. No. 8 (special issue No. 2). P. 8186. (In Russ.)
[6] Mansurov F. G., Gubin V. E., Tyupa A. N. Cleaning of internal deposits in oil pipeline. Ways of control of oil and gas losses during their production, storage and transportation. Moscow: VNIIOENG Publ.; 1971. 136 p. (In Russ.)
[7] Lisin Y. V., Mastobaev B. N., Shammazov A. M., Movsum-Zade E. M. Chemical reagents in oil and oil products pipeline transportation. Saint Petersburg: Nedra Publ.; 2012. 360 p. (In Russ.)
[8] Mastobaev B. N., Shammazov A. M., Movsum-Zade E. M. Chemical products and technologies in oil pipeline transport. Moscow: Khimiya Publ.; 2002. 296 p. (In Russ.)
[9] Dauengauer V. P., Frolov K. D. Wax deposits cleaning of oil pipelines. Oil and gas transportation and storage issues. Proceedings of Bash NIINP. 1959. Issue 2. P. 4448. (In Russ.)
[10] Gubin V. ., Mansurov F. G., Podunov I. M. Investigation of wax deposits formed in main oil pipelines. Transport and Storage of Oil and Oil Products. 1973(10):36. (In Russ.)
[11] Tronov V. P. Mechanism of formation of resin-paraffin deposits and its control. Moscow: Nedra Publ.; 1969. 192 . (In Russ.)
[12] Makarov S. P., Prokhorov A. D., Chelintsev S. N. Methods of cleaning the inner surface of main oil product pipelines. Transport and Storage of Oil and Oil Products. 2004(3):46. (In Russ.)
[13] Dmitriev . ., Khasanova . I., Mastobaev B. N. The analy-sis of the results of experimental studies on the influence of the various factors on the wax precipitation in main oil pipeline. Transport and Storage of Oil Products and Hydrocarbons. 2011(2):1014. (In Russ.)
[14] Tronov V. P. On the mechanism of effect of the nature of surfaces on their paraffinization. Voprosy bureniya skvazhin, dobychi nefti i ekonomiki. 1968(11):191200. (In Russ.)
[15] Gubin V. ., Mansurov F. G. The effect of wax deposits on the pipeline operation mode. Transport and Storage of Oil and Oil Products. 1969(6):4667. (In Russ.)
[16] Lyushin S. F., Repin N. N. On the effect of flow rate on the intensity of paraffin deposition in pipes. In: Fighting paraffin deposits. Moscow: Nedra Publ.; 1965. . 157166. (In Russ.)
[17] Khabibullin R. S., Mansurov F. G., Imaev D. H. The influence of paraffinization on the oil pipelines thermal regime. Oil and oil product pipeline transportation. 1977(18):39. (In Russ.)
[18] Shammazov . ., Armensky . ., Gallyamov . ., Fattakhov . . Prediction of paraffin deposits in trunk oil pipelines In: Design, construction and operation of oil and gas pipelines and oil depot. 1975. Issue 5. P. 237239. (In Russ.)
[19] Timofeev F. V., Kuznetsov . ., Oludina Y. N. Chemmotological aspects of using solvents to remove asphaltene sediments from the internal surface of oil pipeline. Nauka i tehnologii truboprovodnogo transporta nefti i nefteproduktovScience & Technologies: Oil and Oil Products Pipeline Transportation. 2016(5):9097. (In Russ.)
[20] Timofeev F. V., Kuznetsov . ., Lyapin A. Y. Preparation of oil pipelines for transportation of commodity fuels. Collected papers Pipeline transportation2016: Proceedings of XI Int. educational and scientific-practical conference. Ufa: Publ. of USPTU; 2016. P. 179181. (In Russ.)
[21] Devyatkin I. N. The use of gel dividing piston for forcing out oil product and cleaning the internal cavity of the MOPP. Transport and Storage of Oil and Oil Products. 2004(1):910. (In Russ.)
[22] Lokhte . Engineering and technologies of application of cleaning pig, batching pig and internal defect detector in pipelines. Neft, gaz i neftekhimiya za rubezhom. 1993(5):2130. (In Russ.)
[23] Savelyev G. P. Paraffin treatment of oil pipelines using special scrapers. Novosti neftyanoy i gazovoy tekhniki. 1961(7):912. (In Russ.)
[24] Silin . ., Magadova L., Magadov R., Pobortsev M. Use of gel compositions in pipeline transportation. YuKOS Scientific-technical bulletin. 2003(3):1315. (In Russ.)
[25] Markin . N., Nizamov R. E., Sukhoverkhov S. V. Oilfield Chemistry. Practical guide. Vladivostok: Dalnauka Publ.; 2011. 288 . (In Russ.)
[26] Rhys D. A cool strategy for unpiggable pipes. World Pipelines. 2016(9):5862.