METHOD OF PRODUCING A DRAG REDUCER

Abstract

A method for preparation of a reagent for reducing hydrodynamic drag of a turbulent flow of liquid hydrocarbons in pipelines, characterized by a high polymer content of at least 75 wt %, including mixing a 0.1-1.5 mm polymer reducing the hydrodynamic drag of a turbulent flow of liquid hydrocarbons with polymer non-solving solvents. The prepared product is a commodity form of the reagent with a high polymer content of at least 75 wt % used to reduce the hydrodynamic drag of the flow of liquid hydrocarbons in pipelines. The product prepared according to the described method is injected into the flow of hydrocarbon fluid transported through the pipeline using the injection apparatus that mechanically moves the product using a screw auger or screw feeder.

Claims

1. A method for the preparation of a reagent for reducing the hydrodynamic drag of a turbulent flow of liquid hydrocarbons in pipelines, characterized by a high polymer content of at least 75 wt %, comprising mixing a polyalphaolefin powder reducing the hydrodynamic drag of a turbulent flow of liquid hydrocarbons with polymer non-solving solvents and a separating agent (anti-agglomerating agent), wherein the polymer non-solving solvents are a mixture of a monofunctional heteroatomic organic compound with carbon atoms from 3 to 16, and a bifunctional heteroatomic organic compound with carbon atoms from 2 to 16, with the following ratio of the components, wt %: Polyalphaolefin powder from 75 to 90 Separating agent (anti-agglomerating agent) from 2 to 15 Monofunctional heteroatomic organic compound with the number of carbon atoms from 3 to 16 from 1 to 10, Bifunctional heteroatomic organic compound with the number of carbon atoms from 2 to 16 from 1 to 10.

2. The method of claim 1, wherein the polymer powder is mixed with a mixture of glycol containing the number of carbon atoms from 2 to 12 and fatty alcohol with the number of carbon atoms from 4 to 16.

3. The method of claim 2, wherein the polymer powder and the mixture of glycol and fatty alcohol are taken in the ratio 85 parts by weight/15 parts by weight.

4. A powder reagent reducing the hydrodynamic drag of a turbulent flow of liquid hydrocarbons in pipelines comprising the following components, wt %: Polyalphaolefin powder from 75 to 90 Separating agent (anti-agglomerating agent) from 2 to 15 Monofunctional heteroatomic organic compound with the number of carbon atoms from 3 to 16 from 1 to 10 Bifunctional heteroatomic organic compound with the number of carbon atoms from 2 to 16 from 1 to 10.

5. The reagent of claim 4, wherein the monofunctional heteroatomic organic compound is at least one of isomers of propanol, butanol, pentanol, hexanol, heptanol, octanol, nonanol, decanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, isomers of tripropylamine, tributylamine, tripentylamine, trihexylamine, triheptylamine, trioctylamine, trinonylamine, tridecylamine. triundecylamine, tridodecylamine, tritridecylamine, tritetradecylamine, tripentadecylamine, trihexadecylamine.

6. The reagent of claim 4, wherein the bifunctional heteroatomic organic compound is at least one of tripropyl phosphate, tributyl phosphate, tripentyl phosphate, propylene glycol, butylene glycol, butyl cellosolve, hexylene glycol, ethyl cellosolve, texanol, diethylene glycol, triethylene glycol, isophorone, morpholine, dioxane, dimethyl sulphoxide, dimethylformamide.

7. The reagent of claim 4, wherein the monofunctional heteroatomic organic compound is fatty alcohol with the number of carbon atoms from 4 to 16.

8. The reagent of claim 4, wherein the bifunctional heteroatomic organic compound is glycol with the number of carbon atoms from 2 to 12.

9. A method for reduction of the hydrodynamic drag of the turbulent flow of liquid hydrocarbons in pipelines comprising injection of the reagent of claim 4 into the flow of hydrocarbon fluid transported through the pipeline, wherein injection of the reagent is performed by means of an injection apparatus for polymer powders.

10. The method of claim 9, wherein the reagent is dissolved in the hydrocarbon fluid into the state of slurry before it is injected into the pipeline.

11. A method for injection of the reagent of claim 4 into the flow of a hydrocarbon fluid transported through a pipeline, wherein the reagent is fed into the mixer hopper, then the reagent with the hydrocarbon fluid, which is supplied from the pipeline through a valve, flow meter, and a pressure reducing valve goes from the screw feeder through a hydro cyclone mixer and a back valve to the preparation tank for dissolving the prepared reagent into the state of slurry, then the prepared slurry is fed through the flow meter using a gear pump back into the pipeline.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present technology is described using the illustrative materials, in which

[0026] FIG. 1 depicts a schematic illustration of a process for injection of a drag reducing agent with an amount of an active base into the flow of hydrocarbon fluid transported through a pipeline.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] This section describes the main embodiment of the technology, which, however, does not limit other possible embodiments explicitly described in the application materials and apparent for a person skilled in the art.

[0028] The method for preparation of a reagent reducing the hydrodynamic drag of a turbulent flow of liquid hydrocarbons in pipelines is realized according to the following main procedure.

[0029] This method includes the use of a primary polymer reducing the hydrodynamic drag of the flow of liquid hydrocarbons, which is prepared, for example, according to a method described in patent RU 2648079 C1 (publ. on 22 Mar. 2018, journal No. 9), in which polymer (UHMPAO) with a molecular weight of 1.Math.10.sup.7-2.Math.10.sup.7 a.m.u., molecular weight distribution less than 1.5, conversion above 90 wt % is prepared, which makes it possible to reduce grinding related energy costs, for example, in liquid nitrogen at a temperature not above minus 65 and not below minus 120 deg. Celsius, in the process of preparation of dry polymer dispersions with a concentration of more than 75 wt % in a mixture with polymer non-dissolving solvents for drag reducing agents, protect the polymer against the oxidative degradation during storage, reduce significantly the cost price of the reagents reducing the hydrodynamic drag of oil and oil products prepared according to the proposed method and transported through pipelines.

[0030] The polymer blocks prepared according to patent RU 2648079 C1 are ground to the required size using proper cryogenic grinding equipment, and then mixed with polymer non-dissolving solvents, preparing a product with a polymer content of at least 75 wt %, which is fed into the flow of the hydrocarbon fluid pumped through the pipeline using an adapted injection apparatus for polymer powders.

[0031] Alpha-olefins C6-C14, preferably hex-1-ene, oct-1-ene, dec-1-ene, dodec-1-ene, tetradec-1-ene, and mixtures thereof, even more preferably hex-1-ene, dec-1-ene, dodec-1-ene, and mixtures thereof containing at least 70 wt % of basic alpha-olefin, are used as monomers to prepare the polymer blocks.

[0032] The mixtures of a monofunctional heteroatomic organic compound (MHOC) and a bifunctional heteroatomic organic compound (BHOC) are used as a polymer non-dissolving solvent, in which organic compounds containing oxygen, nitrogen as a heteroatom can be used as the MHOC that is isomers of propanol, butanol, pentanol, hexanol, heptanol, octanol, nonanol, decanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, isomers of tripropylamine, tributylamine, tripentylamine, trihexylamine, triheptylamine, trioctylamine, trinonylamine, tridecylamine. triundecylamine, tridodecylamine, tritridecylamine, tritetradecylamine, tripentadecylamine, trihexadecylamine; organic compounds containing oxygen, nitrogen, sulfur, phosphorus as a heteroatom can be used as the BHOC that is tripropyl phosphate, tributyl phosphate, tripentyl phosphate, propylene glycol, butylene glycol, butyl cellosolve, hexylene glycol, ethyl cellosolve, texanol, diethylene glycol, triethylene glycol, isophorone, morpholine, dioxane, dimethyl sulphoxide, dimethylformamide.

[0033] For mechanical mixing of the polymer powder with polymer non-dissolving solvents, any mixers for polymer powders can be used, for example, Pallmann Maschinenfabrik GmbH & Co KG (Germany), OOO Sibprommash (the Russian Federation, Novosibirsk).

[0034] For dosing a product containing great, not less than 75 wt % of polymer, injection apparatus can be used that mechanically move the product through a screw auger or screw feeder made by Kinematica AG (Switzerland), IKA-WERKE GmbH & Co. KG (Germany), Krauss Maffei Berstorff AG (Germany) extruders or analogs.

[0035] The method for preparation of a reagent for reducing the hydrodynamic drag of a flow of liquid hydrocarbons in pipelines is illustrated by the embodiments given below, but not limited to them.

[0036] More specifically, FIG. 1 depicts the following elements: 101—a mixer hopper, 102—a screw feeder, 103—a preparation tank, 104—a hydrocyclone mixer, 105—a check valve, 106—a pipeline, 107—a valve, 108—an inlet flow meter, 109—a pressure reducing valve, 110—a supply flow meter, 111—a gear pump, 112—a back valve, and 113—a valve.

Embodiment 1

[0037] The polymer is prepared according to the following procedure of RU 2648079 C1. Load hex-1-en in the amount of 75 wt %, dec-1-ene in the amount of 10 wt %, decalin with a purity of not less than 99.8 wt % in the amount of 11.91 wt %, cyclooctadecane with a purity of not less than 99.8 in the amount of 3.00 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor in a stream of nitrogen to a temperature of plus 10±2° C. by stirring with a stirrer and supplying a coolant to the reactor jacket. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 1:1 in the amount of 0.077 wt % (at 0.0385 wt % each) and the catalyst is titanium trichloride in the amount of 0.013 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C., for 1 h. Next, discharge the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm or discharge into similar polymer containers, hermetically seal, and keep the containers at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of isopropanol, ethylene glycol in a ratio of 8:2 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content of 80±5 wt %.

Embodiment 2

[0038] The polymer is prepared according to the following procedure of RU 2648079 C1. Load hex-1-ene in the amount of 84 wt %, tetradecene-1 in the amount of 5 wt %, dodecane with a purity of not less than 99.8 wt % in the amount of 5.91 wt %, cyclooctane with a purity of not less than 99.8 wt % in the amount of 5.00 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor to a temperature of plus 10±2° C. by stirring with a stirrer and applying cold coolant to the jacket of the reactor. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 1:1 in the amount of 0.077 wt % (at 0.0385 wt % each) and the catalyst is titanium trichloride in the amount of 0.013 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C. for 1 h. Next, unload the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm, or hermetically seal and hold similar in size polymer containers at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of butyl cellosolve and ethylene glycol in the ratio of 6:4 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content 80±5 wt %.

Embodiment 3

[0039] The polymer is prepared according to the following procedure of RU 2648079 C1. Load hex-1-en in the amount of 80 wt %, decen-1 in the amount of 5 wt %, decalin with a purity of not less than 99.8 wt % in the amount of 14.81 wt %, cyclooctadecylcyclooctadecane with a purity of not less than 99.8 wt % in the amount of 0.1 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor to a temperature of plus 10±2° C. by stirring with a stirrer and applying cold coolant to the jacket of the reactor. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 10:1 in the amount of 0.077 wt % (0.07 wt % and 0.007 wt %, respectively) and the catalyst is titanium trichloride in the amount of 0.013 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C. for 1 h. Next, unload the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm, or seal similar in size polymer containers hermetically and hold at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of ethyl cellosolve and propylene glycol in the ratio of 5:5 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content 80±5 wt %.

Embodiment 4

[0040] The polymer is prepared according to the following procedure of RU 2648079 C1. Load hex-1-en in the amount of 80 wt %, dec-1-ene in the amount of 5 wt %, decane with a purity of not less than 99.8 wt % in the amount of 12.91 wt %, cyclohexadecane with a purity of not less than 99.7 wt % in the amount of 2.00 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor to a temperature of plus 10±2° C. by stirring with a stirrer and applying cold coolant to the jacket of the reactor. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 1:10 in the amount of 0.077 wt % (0.007 wt % and 0.07 wt %, respectively), and the catalyst is titanium trichloride in the amount of 0.013 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C., for 1 h. Then discharge the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm or discharge into similar polymer containers, hermetically seal, and keep the containers at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of octanol and ethylene glycol in the ratio of 8:2 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content 80±5 wt %.

Embodiment 5

[0041] The polymer is prepared according to the following procedure of RU 2648079 C1. Load octene-1 in the amount of 80 wt %, hexene-1 in the amount of 15 wt %, decane with a purity of not less than 99.8 wt % in the amount of 2.91 wt %, cyclotetradecylcyclohexadecane with a purity of not less than 99.8 wt % in the amount of 2.00 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor to a temperature of plus 10±2° C. by stirring with a stirrer and applying cold coolant to the jacket of the reactor. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 1:1 in the amount of 0.077 wt % (at 0.0385 wt % each) and the catalyst is titanium trichloride in the amount of 0.013 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C., for 1 h. Then discharge the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm or discharge into similar polymer containers, hermetically seal, and keep the containers at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of phosphonobutane and ethylene glycol in the ratio of 4:6 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content 80±5 wt %.

Embodiment 6

[0042] The polymer is prepared according to the following procedure of RU 2648079 C1. Load hex-1-ene in the amount of 70 wt %, dodec-1-ene in the amount of 5 wt %, hexadecane with a purity of not less than 99.8 wt % in the amount of 19.908 wt %, cyclooctane with a purity of not less than 99.8 wt % in the amount of 5.00 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor to a temperature of plus 10±2° C. by stirring with a stirrer and applying cold coolant to the jacket of the reactor. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 1:1 in the amount of 0.077 wt % (at 0.0385 wt % each) and the catalyst is titanium trichloride in the amount of 0.015 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C., for 1 h. Then discharge the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm or discharge into similar polymer containers, hermetically seal, and keep the containers at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of n-butanol and ethylene glycol in the ratio of 8:2 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content 80±5 wt %.

Embodiment 7

[0043] The polymer is prepared according to the following procedure of RU 2648079 C1. Load dodec-1-ene in the amount of 90 wt %, dec-1-ene in the amount of 5 wt %, decane with a purity of not less than 99.8 wt % in the amount of 2.92 wt %, cyclohexadecane with a purity of not less than 99.8 wt % in the amount of 2.00 wt % in a reactor with a jacket, stirrer, thermocouple, pressure gauge, the supply of nitrogen gas with a purity of 99.9 wt %. Cool the mixture in the reactor to a temperature of plus 10±2° C. by stirring with a stirrer and applying cold coolant to the jacket of the reactor. Then, feed the catalyst activator into the reactor in the form of a mixture of diethylaluminium chloride and triisobutylaluminum with a mass ratio of 1:1 in the amount of 0.077 wt % (0.0385 wt % each) and a catalyst — titanium trichloride—in the amount of 0.003 wt % in the form of a suspension with a concentration of 40 wt % in heptane. Stir the contents of the reactor, keeping the temperature in the range from plus 8 to plus 12° C., for 1 h. Then discharge the reaction mass in a stream of nitrogen into sealed gas-tight containers with polyethylene liners so that the height of the mass layer does not exceed 250 mm or discharge into similar polymer containers, hermetically seal, and keep the containers at a temperature of 15±5° C. for at least 15 days without access to an air atmosphere. Crush the resulting polymer blocks subsequently using a cascade of knife mills into particles of 50±40 mm, 3±2 mm, and 0.8±0.7 mm in size. Carry out the last grinding in a medium consisting of liquid nitrogen over 15 wt % calcium stearate. Add to the prepared polymer powder, polymer non-solving solvent consisting of a mixture of 1-hexanol and propylene glycol in the ratio of 5:5 by weight, preparing a reagent to reduce the hydrodynamic resistance of the flow of oil and oil products in pipelines—a stable fine dispersion with a polymer content 80±5 wt %.

[0044] The method of injection of a drag reducing agent with a great amount of an active base into the flow of hydrocarbon fluid transported through the pipeline is realized according to the following main procedure.

[0045] Feed the reagent (DRA) prepared according to the above method into mixer hopper 101 equipped with a stirrer and a loading unit in screw feeder 102. Then feed the reagent (DRA) from mixer hopper 101 into screw feeder 102, which ensures feeding of the reagent into preparation tank 103, in which the prepared reagent is dissolved. There is a unit for hydrocyclone mixing (hydrocyclone mixer 104) of the reagent with a hydrocarbon fluid and check valve 105 before preparation tank 103. While going through hydrocyclone mixer 104, the reagent is mixed with the hydrocarbon fluid supplied from pipeline 106 through valve 107, inlet flow meter 108, pressure reducing valve 109. Then, dissolve the reagent in preparation tank 103 until it is homogeneous. The prepared slurry is supplied from preparation tank 103 through supply flow meter 110 to the pipeline using gear pump 111 installed in-line. To prevent the reverse flow of the hydrocarbon fluid from the pipeline to preparation tank 103 in case of stopping the pump or repair of the station, the supply line is equipped with back valve 112 and valve 113. Regulate the dosing of the reagent by turns of screw feeder 102 and control by the mass difference of liquids going through inlet flow meter 108 and supply flow meter 110.

[0046] The above dosing scheme is given in FIG. 1 (FIG. 1).

[0047] Assess the efficiency of the prepared products at a laboratory turborheometer (see Table). The drag reduction (DR) of the flow petroleum solvent in the capillary by the reagent was calculated according to the formula:

[00001]$\mathrm{DR}=\frac{{\lambda }_0-{\lambda }_p}{{\lambda }_0}={\frac{t_0^2-t_p^2}{t_0^2}}^{\frac{{\lambda }_0-{\lambda }_0}{{\lambda }_0}=\frac{t_0^2-t_p^2}{t_0^2}};$

where

[0048] λ is a coefficient of liquid drag;

[0049] t is a time of flow of 330 cm3 of the petroleum solvent through the capillary

[0050] o and p are indices related to the pure solvent and reagent solution, respectively.

[0051] The product passes the test if the DR value is at least 30% at the reagent concentration in the petroleum solvent making 2.5 ppm.

TABLE-US-00001 TABLE DR value, %, at the concentration of the The polymer reagent in the Reagent pour Conversion, concentration in petroleum solvent point, ° C. Embodiment No. wt % the reagent, wt % making 2.5 ppm (GOST 20287) Prior art 69.0 30 42.0 −60 Embodiment 1 98.5 78 41.0 −85 Embodiment 2 98.0 75 40.0 −85 Embodiment 3 97.0 80 44.0 −85 Embodiment 4 98.5 78 41.0 −85 Embodiment 5 98.0 81 44.0 −85 Embodiment 6 99.0 79 43.0 −85 Embodiment 7 98.5 77 42.0 −85

[0052] As follows from the above embodiments and table, it may be concluded that the claimed method, if compared to the analogs including the closest one, makes it possible to prepare a reagent, which is the most effective for the reduction of a hydrodynamic drag of a turbulent flow of liquid hydrocarbons in pipelines, and as a result, ensures the ramp-up, and reduction in expenses for transporting a hydrocarbon fluid.