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Research in specifics of separation of oil-in-water emulsions inside of a centrifugal separator with impeller

Authors: A.S. Timerbaev (HMS Neftemash OJSC, HMS Group, RF, Tyumen), L.V. Taranova, E.V. Golubev, O.Y. Mitroshin (Tyumen State University, RF, Tyumen)

Key words: dynamic hydrocyclone, centrifugal separator, separation oil-water emulsion, numerical simulation.

Regarding current increase of well production water cut level, the great attention is paid nowadays to the problem of treating produced oily water used for injection into wells. To improve the efficiency of oily water treatment, a centrifugal separator with vane impellers is introduced. This research aims at investigation of the machine geometric parameters and operation characteristics, such as dimensions of the discharge conduits and distribution of treated medium flow rate between the discharge conduits for separation of oil-in-water emulsion inside of the disassembled centrifugal separator. The research brought the detailed study of tangential fluid velocity field inside of the engineered centrifugal separator, which allowed defining general picture of this velocity distribution inside the machine cavity and getting precise dependency between distribution of tangential velocity over the centrifugal separator length and radius, as well as dependencies of the total flow rate between the discharge conduits of the centrifugal separator.
References
1. Kutepov A.M., Ternovskiy I.G., Kuznetsov A.A., Hydrodynamics of hydrocyclone (In Russ.), Zhurnal prikladnoy khimii = Russian Journal of Applied Chemistry, 1980, V. 53, no. 12, pp. 2676–2681.
2. Mansurov R.I., Bril' D.M., Emkov A.A., The main directions in the development of techniques and technology of oil and water treatment at fields
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 1990, no. 9, pp. 54–62.
3. Mustafaev A.M., Gutman B.M., Teoriya i raschet gidrotsiklona (Theory and
design of hydrocyclone), Baku: Maarif Publ., 1969, 172 p.
4. Ternovskiy I.G., Kutepov A.M., Gidrotsiklonirovanie (Hydrocycloning),
Moscow: Nauka Publ., 1994, 350 p.
5. Timerbaev A.S., Investigation of physical-chemical method of water treatment for reservoir pressure maintenance systems by using a centrifugal separator with impeller (In Russ.), Proceedings of All-Russian Scientific and Practical Conference “Novye tekhnologii – neftegazovomu regionu” (New technologies - oil and gas region), Part 2, Tyumen': TSOGU Publ., 2012, 284 p.
6. Guangdong G., Songsheng D., Research on dispersed oil droplets breakage
and emulsification in the dynamic oil and water hydrocyclone, Advance
Journal of Food Science and Technology, 2013, 5 (08), pp. 1110–1116.
7. Panfeng Z., Songsheng D., Fulun Z., Numerical analysis on the characteristics of fluid motion within dynamic hydroclone, Proceeding of the World Congress on Engineering and Technology, 2011, pp. 295. – 298.
8. Timerbaev A.S., Taranova L.V., Verification of the numerical model separation process of oil-water mixture in a centrifugal separator (In Russ.), Sovremennye problemy nauki i obrazovaniya, 2014, no. 5, URL: www.science-education. ru/119-14839.
9. Timerbaev A.S., Taranova L.V., Numerical simulation separation oil-water
emulsions in centrifugal separator (In Russ.), Fundamental'nye issledovaniya,
2014, no. 9(3), pp. 547–551.

Key words: dynamic hydrocyclone, centrifugal separator, separation oil-water emulsion, numerical simulation.

Regarding current increase of well production water cut level, the great attention is paid nowadays to the problem of treating produced oily water used for injection into wells. To improve the efficiency of oily water treatment, a centrifugal separator with vane impellers is introduced. This research aims at investigation of the machine geometric parameters and operation characteristics, such as dimensions of the discharge conduits and distribution of treated medium flow rate between the discharge conduits for separation of oil-in-water emulsion inside of the disassembled centrifugal separator. The research brought the detailed study of tangential fluid velocity field inside of the engineered centrifugal separator, which allowed defining general picture of this velocity distribution inside the machine cavity and getting precise dependency between distribution of tangential velocity over the centrifugal separator length and radius, as well as dependencies of the total flow rate between the discharge conduits of the centrifugal separator.
References
1. Kutepov A.M., Ternovskiy I.G., Kuznetsov A.A., Hydrodynamics of hydrocyclone (In Russ.), Zhurnal prikladnoy khimii = Russian Journal of Applied Chemistry, 1980, V. 53, no. 12, pp. 2676–2681.
2. Mansurov R.I., Bril' D.M., Emkov A.A., The main directions in the development of techniques and technology of oil and water treatment at fields
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 1990, no. 9, pp. 54–62.
3. Mustafaev A.M., Gutman B.M., Teoriya i raschet gidrotsiklona (Theory and
design of hydrocyclone), Baku: Maarif Publ., 1969, 172 p.
4. Ternovskiy I.G., Kutepov A.M., Gidrotsiklonirovanie (Hydrocycloning),
Moscow: Nauka Publ., 1994, 350 p.
5. Timerbaev A.S., Investigation of physical-chemical method of water treatment for reservoir pressure maintenance systems by using a centrifugal separator with impeller (In Russ.), Proceedings of All-Russian Scientific and Practical Conference “Novye tekhnologii – neftegazovomu regionu” (New technologies - oil and gas region), Part 2, Tyumen': TSOGU Publ., 2012, 284 p.
6. Guangdong G., Songsheng D., Research on dispersed oil droplets breakage
and emulsification in the dynamic oil and water hydrocyclone, Advance
Journal of Food Science and Technology, 2013, 5 (08), pp. 1110–1116.
7. Panfeng Z., Songsheng D., Fulun Z., Numerical analysis on the characteristics of fluid motion within dynamic hydroclone, Proceeding of the World Congress on Engineering and Technology, 2011, pp. 295. – 298.
8. Timerbaev A.S., Taranova L.V., Verification of the numerical model separation process of oil-water mixture in a centrifugal separator (In Russ.), Sovremennye problemy nauki i obrazovaniya, 2014, no. 5, URL: www.science-education. ru/119-14839.
9. Timerbaev A.S., Taranova L.V., Numerical simulation separation oil-water
emulsions in centrifugal separator (In Russ.), Fundamental'nye issledovaniya,
2014, no. 9(3), pp. 547–551.


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