The effect of water phase content and salinity on the rheological properties of water-in-crude oil emulsions

Authors: E.V. Kirbizhekova, I.V. Prozorova, N.V. Yudina (Institute of Petroleum Chemistry, Siberian Branch of RAS, RF, Tomsk), N.Yu. Margolis (National Researche Tomsk State University, RF, Tomsk)

Key words: water-in-crude oil emulsion, dispersion, viscosity, thixotropy.

E-mail: kirbizhekova@gmail.com

There are many oil fields that have come in advanced stage of development. The water presence in the oil leads to formation of water–in-crude oil emulsions. These emulsions can be very stable as a result of presence of polar components such as asphaltenes and resins. In this study the influence of water cut and salinity on the disperse and rheological characteristics of water-in-crude oil emulsions is investigated experimentally. The correlation between the droplet size and emulsion viscosity is established. It is found, that an increased water cut gives rise to growth of thixotropic properties and dispersed system structuring. In addition it is shown that emulsion stability decreases with increasing water phase salinity. The obtained data can be used in the implementation and prediction processes of production, collection and transportation of emulsion mixtures based on heavy paraffinic oils rich 

References
1. Baykov N.M., Pozdnyshev G.H., Mansurov R.I., Sbor i promyslovaya podgotovka
nefti, gaza i vody (Gathering and field treatment of oil, gas and water),
Moscow: Nedra, 1981, 261 p.
2. Lyustritskiy V.M., Neftepromyslovoe delo, 1997, no. 10–11, pp. 35–37.
3. Sakhabutdinov R.Z., Gubaydulin F.R., Ismagilov I.Kh., Kosmacheva T.F., Osobennosti
formirovaniya i razrusheniya vodoneftyanykh emul'siy na pozdney
stadii razrabotki neftyanykh mestorozhdeniy (Features of formation and destruction
of oil-water emulsions at a late stage of oil field development),
Moscow: Publ. of OAO “VNIIOENG”, 2005, 324 p.
4. Tronov V.P., Promyslovaya podgotovka nefti (Field oil treatment), Kazan':
Fen Publ., 2000, 416 p.
5. Glushchenko V.N., Obratnye emul'sii i suspenzii v neftegazovoy promyshlennosti
(Inverse emulsions and suspensions in oil and gas industry), Moscow:
Interkontakt Nauka Publ., 2008, 725 p.
6. Ergin Yu.V., Kostrova L.I., Kuznetsova N.V., Vestnik Bashkirskogo universiteta,
2001, no. 3, pp. 19–21.
7. Moradi M., Alvarado V., Huzurbazar S., Effect of salinity on water-in-crude oil
emulsion: evaluation through drop-size distribution proxy, Energy Fuels, 2011,
no. 25(1), pp. 260–268.
8. Orlov G.A., Kendis M.Sh., Glushchenko V.N., Primenenie obratnykh emul'siy
v neftedobyche (The use of inverse emulsions in oil extraction), Moscow:
Nedra Publ., 1991, 224 p.
9. Kashaev R.S., Neftepererabotka i neftekhimiya, 2000, no. 6, pp. 30-35.
10. Vygovskoy V.P., Daneker V.A., Rikkonen S.V., Teplov A.I., Collected papers
“Avtomatizatsiya i informatsionnoe obespechenie tekhnologicheskikh protsessov
v neftyanoy promyshlennosti” (Automation and informational support
of processes in the oil industry), Tomsk: Publ. of Tomsk State University, 2002, V. 2,
pp. 224–229.
11. Loskutova Yu.V., Prozorova I.V., Yudina N.V., Collected papers “Dobycha,
podgotovka, transport nefti i gaza” (Extraction, preparation, transportation
of oil and gas), Proceedings of III All-Russian Scientific and Practical Conference,
Tomsk: Publ. of Institute of Atmospheric Optics of Siberian Branch of the
Russian Academy of Science, 2004, pp. 235–237.

Key words: water-in-crude oil emulsion, dispersion, viscosity, thixotropy.

E-mail: kirbizhekova@gmail.com

There are many oil fields that have come in advanced stage of development. The water presence in the oil leads to formation of water–in-crude oil emulsions. These emulsions can be very stable as a result of presence of polar components such as asphaltenes and resins. In this study the influence of water cut and salinity on the disperse and rheological characteristics of water-in-crude oil emulsions is investigated experimentally. The correlation between the droplet size and emulsion viscosity is established. It is found, that an increased water cut gives rise to growth of thixotropic properties and dispersed system structuring. In addition it is shown that emulsion stability decreases with increasing water phase salinity. The obtained data can be used in the implementation and prediction processes of production, collection and transportation of emulsion mixtures based on heavy paraffinic oils rich 

References
1. Baykov N.M., Pozdnyshev G.H., Mansurov R.I., Sbor i promyslovaya podgotovka
nefti, gaza i vody (Gathering and field treatment of oil, gas and water),
Moscow: Nedra, 1981, 261 p.
2. Lyustritskiy V.M., Neftepromyslovoe delo, 1997, no. 10–11, pp. 35–37.
3. Sakhabutdinov R.Z., Gubaydulin F.R., Ismagilov I.Kh., Kosmacheva T.F., Osobennosti
formirovaniya i razrusheniya vodoneftyanykh emul'siy na pozdney
stadii razrabotki neftyanykh mestorozhdeniy (Features of formation and destruction
of oil-water emulsions at a late stage of oil field development),
Moscow: Publ. of OAO “VNIIOENG”, 2005, 324 p.
4. Tronov V.P., Promyslovaya podgotovka nefti (Field oil treatment), Kazan':
Fen Publ., 2000, 416 p.
5. Glushchenko V.N., Obratnye emul'sii i suspenzii v neftegazovoy promyshlennosti
(Inverse emulsions and suspensions in oil and gas industry), Moscow:
Interkontakt Nauka Publ., 2008, 725 p.
6. Ergin Yu.V., Kostrova L.I., Kuznetsova N.V., Vestnik Bashkirskogo universiteta,
2001, no. 3, pp. 19–21.
7. Moradi M., Alvarado V., Huzurbazar S., Effect of salinity on water-in-crude oil
emulsion: evaluation through drop-size distribution proxy, Energy Fuels, 2011,
no. 25(1), pp. 260–268.
8. Orlov G.A., Kendis M.Sh., Glushchenko V.N., Primenenie obratnykh emul'siy
v neftedobyche (The use of inverse emulsions in oil extraction), Moscow:
Nedra Publ., 1991, 224 p.
9. Kashaev R.S., Neftepererabotka i neftekhimiya, 2000, no. 6, pp. 30-35.
10. Vygovskoy V.P., Daneker V.A., Rikkonen S.V., Teplov A.I., Collected papers
“Avtomatizatsiya i informatsionnoe obespechenie tekhnologicheskikh protsessov
v neftyanoy promyshlennosti” (Automation and informational support
of processes in the oil industry), Tomsk: Publ. of Tomsk State University, 2002, V. 2,
pp. 224–229.
11. Loskutova Yu.V., Prozorova I.V., Yudina N.V., Collected papers “Dobycha,
podgotovka, transport nefti i gaza” (Extraction, preparation, transportation
of oil and gas), Proceedings of III All-Russian Scientific and Practical Conference,
Tomsk: Publ. of Institute of Atmospheric Optics of Siberian Branch of the
Russian Academy of Science, 2004, pp. 235–237.


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