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Structural and energy method for selection of paraffin deposits inhibitors

Authors: A.A. Zlobin (Perm National Research Polytechnic University, RF, Perm)

Key words: paraffin inhibitors, method of nuclear magnetic resonance (NMR), structure of oil disperse systems, the activation energy, size of asphaltene core.

The article describes a new method for choosing paraffin inhibitors, based on an analysis of oils by NMR. Molecular constant condensed phases - the activation energy and the average size of asphaltene core oil dispersion system are used as informative parameters. Experiments found that after the introduction of high-molecular inhibitors oil is changed the original structure of the dispersed oil at the size of nanoparticles. Quantitatively, the restructuring of the colloidal system can be described by a change in the activation energy of the dispersion medium and the structure parameters of the dispersed phase. Positive efficiency of inhibitors to reduce paraffin deposits is determined by the increase of the activation energy and decrease of the average radius of the dispersed nanoparticles. The mechanism and an equation are presented for correlation between solid deposits of oil and energy characteristics after processing by inhibitors.

References
1. Glushchenko V.N., Silin M.A., Gerin Yu.G., Neftepromyslovaya khimiya (Oilfield chemistry), Part V. Preduprezhdenie i ustranenie asfal'tenosmoloparafinovykh
otlozheniy, Moscow: Nauka Publ., 2009, 475 p.
2. Islyamov I.Sh., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo, 2012,
no. 2, pp. 124–129.
3. Syunyaev Z.I., Syunyaev R.Z., Safieva R.Z., Neftyanye dispersnye sistemy (Oil
dispersed systems), Moscow: Khimiya Publ., 1990, 224 p.
4. Zlobin A.A., Yushkov I.R., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo, 2010, no. 5, pp. 45–52.
5. Vashman A.A., Pronin I.S., Yadernaya magnitnaya relaksatsiya i ee primenenie
v khimicheskoy fizike (Nuclear magnetic relaxation and its application
in chemical physics), Moscow: Nauka Publ., 1979, 224 p.
6. Zlobin A.A., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo
universiteta. Geologiya. Neftegazovoe i gornoe delo, 2012, no. 5, pp. 47–56.
7. Safieva R.Z., Fizikokhimiya nefti. Fiziko-khimicheskie osnovy tekhnologii pererabotki nefti (Physical chemistry of oil. Physical and chemical fundamentals
of oil refining): Thesis of the doctor of technical science, MOSCOW, 1998
8. Zlobin A.A., Ebzeeva O.R., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i
gornoe delo, 2012, no. 2, pp. 87–94.
9. Zlobin A.A., Mordvinov V.A., Yushkov I.R., Neft', Gaz i Biznes, 2011, no. 9,
pp. 50–54.
10. Popov V.V., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo, 2012, no. 5, pp. 76–88. 

Key words: paraffin inhibitors, method of nuclear magnetic resonance (NMR), structure of oil disperse systems, the activation energy, size of asphaltene core.

The article describes a new method for choosing paraffin inhibitors, based on an analysis of oils by NMR. Molecular constant condensed phases - the activation energy and the average size of asphaltene core oil dispersion system are used as informative parameters. Experiments found that after the introduction of high-molecular inhibitors oil is changed the original structure of the dispersed oil at the size of nanoparticles. Quantitatively, the restructuring of the colloidal system can be described by a change in the activation energy of the dispersion medium and the structure parameters of the dispersed phase. Positive efficiency of inhibitors to reduce paraffin deposits is determined by the increase of the activation energy and decrease of the average radius of the dispersed nanoparticles. The mechanism and an equation are presented for correlation between solid deposits of oil and energy characteristics after processing by inhibitors.

References
1. Glushchenko V.N., Silin M.A., Gerin Yu.G., Neftepromyslovaya khimiya (Oilfield chemistry), Part V. Preduprezhdenie i ustranenie asfal'tenosmoloparafinovykh
otlozheniy, Moscow: Nauka Publ., 2009, 475 p.
2. Islyamov I.Sh., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo, 2012,
no. 2, pp. 124–129.
3. Syunyaev Z.I., Syunyaev R.Z., Safieva R.Z., Neftyanye dispersnye sistemy (Oil
dispersed systems), Moscow: Khimiya Publ., 1990, 224 p.
4. Zlobin A.A., Yushkov I.R., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo, 2010, no. 5, pp. 45–52.
5. Vashman A.A., Pronin I.S., Yadernaya magnitnaya relaksatsiya i ee primenenie
v khimicheskoy fizike (Nuclear magnetic relaxation and its application
in chemical physics), Moscow: Nauka Publ., 1979, 224 p.
6. Zlobin A.A., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo
universiteta. Geologiya. Neftegazovoe i gornoe delo, 2012, no. 5, pp. 47–56.
7. Safieva R.Z., Fizikokhimiya nefti. Fiziko-khimicheskie osnovy tekhnologii pererabotki nefti (Physical chemistry of oil. Physical and chemical fundamentals
of oil refining): Thesis of the doctor of technical science, MOSCOW, 1998
8. Zlobin A.A., Ebzeeva O.R., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i
gornoe delo, 2012, no. 2, pp. 87–94.
9. Zlobin A.A., Mordvinov V.A., Yushkov I.R., Neft', Gaz i Biznes, 2011, no. 9,
pp. 50–54.
10. Popov V.V., Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo, 2012, no. 5, pp. 76–88. 


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