Peculiarities of paraffin crystallization in the pore channels collectors

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

Key words: method of nuclear magnetic resonance (NMR), the phase transition, the crystallization of wax, paraffin oil saturation temperature, activation energy, wettability of the surface.

The article has investigated the effect of temperature on the pore space and the character of crystallization of waxes in the light of structural and lithological rock properties and composition of the oil fields as an example of the Perm region. Analysis of experimental data showed that the phase transition of paraffin in a restricted micro volume of reservoir rocks is observed at a temperature of 2-25 °C higher than the free volume. Significant role in the saturation temperature have physics-chemical characteristics of the pore surface. For carbonate reservoirs established a linear increase in the saturation temperature of paraffin oil with an increase in wettability of pore surfaces.

References

1. RD 39-9478-80, Metodicheskoe rukovodstvo po vyyavleniyu zalezhey nefti, nasyshchennykh parafinami (Toolkit for Identification of oil deposits saturated with paraffin).

2. Vladimirov I.V., Vladimirova I.I., Titov A.P., et al., Neftepromyslovoe delo, 2010, no. 1, pp. 11-17.

3. Patent RF № 2175764, Sposob opredeleniya nefte- i vodonasyshchennosti obraztsov gornykh porod (The method for determining oil and water saturation of rock samples), author: Zlobin A.A.

4. Syunyaev Z.I., Syunyaev R.Z., Safieva R.Z., Neftyanye dispersnye sistemy (Oil disperse systems), Moscow: Khimiya Publ., 1990, 224 p.

5. Zlobin A.A., Tul'bovich B.I., Borsutskiy Z.R., Radiospektroskopiya, 1993, V. 21, pp. 140-148.

6. Zlobin A.A., Yushkov I.R., Vestnik PGTU, Ser. B: Geologiya, geoinformatsionnye sistemy, gorno-neftyanoe delo, 2010, no. 5, pp. 45-52.

7. 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.

8. Zlobin A.A., Mordvinov V.A., Yushkov I.R., Neft', gaz i biznes, 2011, no. 9, pp. 50-54.

Key words: method of nuclear magnetic resonance (NMR), the phase transition, the crystallization of wax, paraffin oil saturation temperature, activation energy, wettability of the surface.

The article has investigated the effect of temperature on the pore space and the character of crystallization of waxes in the light of structural and lithological rock properties and composition of the oil fields as an example of the Perm region. Analysis of experimental data showed that the phase transition of paraffin in a restricted micro volume of reservoir rocks is observed at a temperature of 2-25 °C higher than the free volume. Significant role in the saturation temperature have physics-chemical characteristics of the pore surface. For carbonate reservoirs established a linear increase in the saturation temperature of paraffin oil with an increase in wettability of pore surfaces.

References

1. RD 39-9478-80, Metodicheskoe rukovodstvo po vyyavleniyu zalezhey nefti, nasyshchennykh parafinami (Toolkit for Identification of oil deposits saturated with paraffin).

2. Vladimirov I.V., Vladimirova I.I., Titov A.P., et al., Neftepromyslovoe delo, 2010, no. 1, pp. 11-17.

3. Patent RF № 2175764, Sposob opredeleniya nefte- i vodonasyshchennosti obraztsov gornykh porod (The method for determining oil and water saturation of rock samples), author: Zlobin A.A.

4. Syunyaev Z.I., Syunyaev R.Z., Safieva R.Z., Neftyanye dispersnye sistemy (Oil disperse systems), Moscow: Khimiya Publ., 1990, 224 p.

5. Zlobin A.A., Tul'bovich B.I., Borsutskiy Z.R., Radiospektroskopiya, 1993, V. 21, pp. 140-148.

6. Zlobin A.A., Yushkov I.R., Vestnik PGTU, Ser. B: Geologiya, geoinformatsionnye sistemy, gorno-neftyanoe delo, 2010, no. 5, pp. 45-52.

7. 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.

8. Zlobin A.A., Mordvinov V.A., Yushkov I.R., Neft', gaz i biznes, 2011, no. 9, pp. 50-54.


Attention!
To buy the complete text of article (a format - PDF) or to read the material which is in open access only the authorized visitors of the website can. .

Mobile applications

Read our magazine on mobile devices

Загрузить в Google play

Press Releases

24.11.2021
23.11.2021
02.11.2021
Конкурс на соискание молодежной премии имени академика И.М. Губкина