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Universal separation performance indicator for centrifugal gas separators

Authors: M.P. Peshcherenko (Novomet-Perm АО, RF, Perm), М.О. Perelman (New Lift Solutionis B.V., RF, Perm), S.N. Peshcherenko (Perm National Research Polytechnic University, RF, Perm)

Key words: centrifugal gas separator, gas-liquid mixture, gas separation coefficient, universal separation curve

This paper analyses separation process of gas-liquid mixture in submersible centrifugal gas separators. Gas separation coefficient is a monotonic function of two non-dimensional variables. Values of the function at the boundaries of variation range are found. Approximation of gas separation coefficient by the function satisfying these conditions is obtained. For gas separators of different designs the suggested characteristic curve was correlated to experimental information. It is shown that average approximation error did not exceed 10%.
References
1. Drozdov A.N., Tekhnologiya i tekhnika dobychi nefti pogruzhnymi nasosami v oslozhnennykh usloviyakh (Technology and equipment of oil production using submersible pumps in extreme environments), Moscow:
MAKS Press, 2008, 312 p.
2. Patent no. 2075654 RF, F04D13/10, F04F5/54, F04B51/00, Method of tests
of hydraulic machines and electric motors to them and test bed for realizing
the method, Inventors: Drozdov A.N., Dem'yanova L.A.
3. Patent no 2398205 RF, MPK7 G01M19/00, F04D13/10, Method of testing
gas separators of oil production downhole oil pump units and computeraided
test bench to this end, Inventors: Kudinov M.A., Mochalov P.V., Shul'-
ga A.A., Shul'ga A.F.
4. Patent no. 2425254 RF, MPK7 F04D13/10, Hydraulic test bench for gas
separators of pump units for supply of formation fluid, Inventors: Kalan V.A.,
Petrov V.I., Isaev G.A., Trulev A.V.
5. Patent no. 2531090 RF, Method to test gas separators on gas-liquid mixtures and method for its realisation, Inventors: Ostrovskiy V.G., Perel'man
M.O., Peshcherenko S.N.
6. Landau L.D., Lifshits E.M., Gidrodinamika (Hydrodynamics), Moscow:
Nauka Publ., 1986, 736 p.
7. Patent no. 2233202 RF, F04D13/10, Method of pumping-out gas-and-liquid
mixture from well and submersible pumping unit for realization of this
method, Inventor: Drozdov A.N., Ageev Sh.R., Den'gaev A.V. et al.
8. Patent no. 2379500 RF, E21D 43/38, Abrasive-resistant centrifugal gas
tank, Inventors: Peshcherenko S.N., Peshcherenko M.P., Perel'man M.O.
et al.
9. Patent no. 2363842 RF, E21D43/38, Abrasion resistant gas separator, Inventors: Peshcherenko S.N., Peshcherenko M.P., Perel'man M.O. et al.

Key words: centrifugal gas separator, gas-liquid mixture, gas separation coefficient, universal separation curve

This paper analyses separation process of gas-liquid mixture in submersible centrifugal gas separators. Gas separation coefficient is a monotonic function of two non-dimensional variables. Values of the function at the boundaries of variation range are found. Approximation of gas separation coefficient by the function satisfying these conditions is obtained. For gas separators of different designs the suggested characteristic curve was correlated to experimental information. It is shown that average approximation error did not exceed 10%.
References
1. Drozdov A.N., Tekhnologiya i tekhnika dobychi nefti pogruzhnymi nasosami v oslozhnennykh usloviyakh (Technology and equipment of oil production using submersible pumps in extreme environments), Moscow:
MAKS Press, 2008, 312 p.
2. Patent no. 2075654 RF, F04D13/10, F04F5/54, F04B51/00, Method of tests
of hydraulic machines and electric motors to them and test bed for realizing
the method, Inventors: Drozdov A.N., Dem'yanova L.A.
3. Patent no 2398205 RF, MPK7 G01M19/00, F04D13/10, Method of testing
gas separators of oil production downhole oil pump units and computeraided
test bench to this end, Inventors: Kudinov M.A., Mochalov P.V., Shul'-
ga A.A., Shul'ga A.F.
4. Patent no. 2425254 RF, MPK7 F04D13/10, Hydraulic test bench for gas
separators of pump units for supply of formation fluid, Inventors: Kalan V.A.,
Petrov V.I., Isaev G.A., Trulev A.V.
5. Patent no. 2531090 RF, Method to test gas separators on gas-liquid mixtures and method for its realisation, Inventors: Ostrovskiy V.G., Perel'man
M.O., Peshcherenko S.N.
6. Landau L.D., Lifshits E.M., Gidrodinamika (Hydrodynamics), Moscow:
Nauka Publ., 1986, 736 p.
7. Patent no. 2233202 RF, F04D13/10, Method of pumping-out gas-and-liquid
mixture from well and submersible pumping unit for realization of this
method, Inventor: Drozdov A.N., Ageev Sh.R., Den'gaev A.V. et al.
8. Patent no. 2379500 RF, E21D 43/38, Abrasive-resistant centrifugal gas
tank, Inventors: Peshcherenko S.N., Peshcherenko M.P., Perel'man M.O.
et al.
9. Patent no. 2363842 RF, E21D43/38, Abrasion resistant gas separator, Inventors: Peshcherenko S.N., Peshcherenko M.P., Perel'man M.O. et al.


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