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2018/2
Main aspects of determining the drag reducing agents quantity in the contact area by batching technology
Geosciences

Authors: Nikita N. GOLUNOV was born in1981. He graduated from Gubkin Russian State University (Faculty of Design, Construction and Exploitation of Pipeline Transport Systems) in 2003. He is Candidate of Technical Sciences, Associate professor of the Department of Gas and Oil Pipeline Engineering and Operation of Gubkin Russian State university of Oil and Gas (National Research University). He is author more than 20 publications. E-mail: golunov.n@gubkin.ru

Abstract: As is known, drag reducing agents (DRA) reduce not only the hydraulic resi-stance coefficient but also the turbulent diffusion magnitude of a moving fluid. When the mixture area moves through the pipeline, the concentration of the DRA gradually decreases, which leads to a decrease in its efficiency. The article deals with the main aspects that affect the determination of the amount of DRA added to the contact area under batching technology

Index UDK: 622.691.4

Keywords: batching technology of petroleum products, direct contact, drag reducing agent (DRA), reduction of the hydraulic resistance coefficient, turbulent diffusion magnitude, separation plug

Bibliography:
1. Toms B.A. Some observation on the flow of linear polymer solution through straight tubes at large Reynolds numbers. Proceedings of the 1st International. Congress on Rheology. North-Holland. Amsterdam, 1949, v. 2, p. 135–141.
2. Virk P.S. Drag Reduction Fundamentals. AIChE Journal, 1975, no. 21(4), p. 625–655.
3. Japper-Jaafar M.R. et al. Laminar, transitional and turbulent annular flow of drag-reducing polymer solutions. Journal Non-Newtonian Fluid Mechanics, 2010, p. 86–93.
4. Peterfalv F. Drag reducing agent application on MOL high pressure liquid hydrocarbons pipelines. Science and technologies oil and oil products pipeline transportation, 2015, no. 4, p. 29–41.
5. Gareev M.M., Lisin Yu.V., Manzhai V.N., Shammazov A.M. Drag reducing agents to reduce the hydraulic resistance of pipelines. SPb.: Nedra, 2013, 228 p.
6. Nastepanin P.E., Evtukh K.A., Chuzhinov E.S., Barkhatov A.F. Features of the application of an anti-turbulent additive on main oil pipelines equipped with automatic pressure regulation systems on the basis of trunk pump units with frequency-controlled drive. Science and technologies oil and oil products pipeline transportation, 2013, no. 3, p. 12–17.
7. Arbuzov N.S., Lurie M.V., Oksegendler S.M. Calculation of fluid transfer parameters with drag reducing agents. Science and technologies oil and oil products pipeline transportation, 2012, no. 2, p. 56–60.
8. Lurie M.V., Maron V.I., Matskin L.A. and others. Optimization of consecutive pumping of petroleum products. M.: Nedra, 1979, 257 p.
9. Ishmukhametov I.T., Isaev S.L., Lurie M.V. Pipeline transport of petroleum. М..: Publishing house „Oil and gas”, 1999, 299 p.
10. Timofeev F.V., Sereda S.V., Lurie M.V. Layout of the mixture during the post-pumping transfer of petroleum products. Science and technology of pipeline transport of oil and oil products, 2017, no. 2, p. 42–47.
11. Sereda S.V. Experimental evaluation and justification of the maximum admissible concentrations of motor fuels of various groups in their mixtures with sequential pumping through pipelines. Diss. for the degree of candidate of technical sciences. Russian State University of Oil and Gas (NIU) Gubkin. Moscow, 2017.
12. Golunov N.N. The use of drag reducing agents in the zone of contact lots of multi-grade petroleum products to reduce the mixture-formation during batching technology. Diss. for the degree of candidate of technical sciences. The Gubkin Russian State University of Oil and Gas. Moscow, 2006, 135 p.
13. Lurie M.V., Golunov N.N. Use of bench test results of small anti-turbulent additives for hydraulic testing of pipelines. Science and technologies oil and oil products pipeline transportation, 2016, no. 4, p. 32–37.
14. Golunov N.N., Merzhoev M.G. Theory and Algorithm of Calculation of the Quasi-Stationary Modes of the Oil Pumping with Drag Reducing Additives. Territory „Neftegaz”, 2017, no. 12, p. 72–77.

2017/4
The oil products batching by using drag reducing agents to decrease an amount of interface
Geosciences

Authors: Nikita N. GOLUNOV was born in1981. He graduated from Gubkin Russian State University (Faculty of Design, Construction and Exploitation of Pipeline Transport Systems) in 2003. PhD in Technical Sciences, Associate professor of the Department of Gas and Oil Pipeline Engineering and Operation of Gubkin Russian State University (National Research University). He is author more than 20 publications. E-mail: golunov.n@gubkin.ru

Abstract: This article presents the process of multifarious oil products sequential transportation, while every product displace the previous one and is displaced by the next one. The interface, which is build up in oil products contact area, is governed by pipeline length and intensity of turbulent mixing. It is found that this intensity could be decrease sharply by provision of the small amount of drag redu cing agent (DRA), which will diminish either stream friction and batch volume. In this article the calculation of DRA’s volume for considerable reduction of interface is presented

Index UDK: 622.691.4

Keywords: pipeline transportation of petroleum products, batching technology, direct contact, cutting of an interface volume, drag reducing agents, reduction of the hydraulic resistance coefficient, separation plug

Bibliography:
1. Toms B.A. Some observation on the flow of linear polymer solution through straight tubes at large Reynolds numbers. Proceedings of the 1st International. Congress on Rheology. North-Holland. Amsterdam, 1949, vol. 2, p. 135–141.
2. Hoyt J. The effect of additives on fluid friction. Theoretical foundations of engineering calculations, 1972, no. 2, p. 1–31.
3. Virk P.S. Drag Reduction Fundamentals. AIChE Journal, 1975, no. 21 (4), p. 625–655.
4. Japper-Jaafar M.R. et al. Laminar, transitional and turbulent annular flow of drag-reducing polymer solutions. Journal Non-Newtonian Fluid Mechanics, 2010, no. 161, p. 86–93.
5. Pe’terfalv F. Drag reducing agent application on MOL high pressure liquid hydrocarbons pipelines. Science and technologies oil and oil products pipeline transportation, 2015, no. 4, p. 29–41.
6. Zholobov V.V., Moretsky V.Y., Varybok D.I. About determining functional dependence of anti turbulent additive hydraulic efficiency from parameters of transported medium. Science and technologies oil and oil products pipeline transportation, 2011, no. 4, p. 52–57.
7. Ishmukhametov I.T., Isaev S.L., Lurie M.V. Pipeline transport of petroleum products. M.: Publishing house „Oil and Gas”, 1999, 299 p.
8. Golunov N.N. The use of anti-turbulent additives in the zone of contact lots of different-grade petroleum products to reduce the mixture formation during sequential pumping. Diss. for the degree of candidate of technical sciences. M.: Gubkin Russian State University of Oil and Gas, 2006, 135 p.
9. Lurie M.V. Theoretical foundations of pipeline transport of oil, oil products and gas. M.: Publishing house Nedra, 2017, 478 p.