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Simulation of heat treating the oil collector using acid exposure on near-wellbore zone

Authors: T.R. Zakirov (Kazan (Volga Region) Federal University, RF, Kazan), A.I. Nikiforov (Institute of Mechanics and Engineering, Kazan Science Center, Russian Academy of Sciences, RF, Kazan)

Key words:mathematic modeling, thermal conductivity, acid, function distribution.

The study deals with the problem of thermal exposure on the oil reservoir using acidizing of near-wellbore zone. There is a comparison of the oil recovery factor in cases of conventional water flooding, water flooding with the injection of coolant, water flooding with acid exposure and mixed technology. The obtained results show that the joint exposure of heat and acid treatment is the most effective mode of the oil recovery.
References
1. Burzhe Zh., Surio P., Kombarnu M., Termicheskie metody povysheniya nefteotdachi plastov (Thermal EOR methods) translated from French, Moscow: Nedra Publ., 1988, 422 p. Original
2. Surguchev M.L., Vtorichnye i tretichnye metody uvelicheniya nefteotdachi
plastov (Secondary and tertiary EOR methods), Moscow: Nedra Publ., 1985,
308 p.
3. Bulgakova G.T., Sharifullin A.R., Kharisov R.Ya. et al., Laboratory and theoretical researches of matrix acid-based carbonates processing (In Russ.),
Neftyanoe khozyaystvo – Oil Industry, 2010, no. 5, pp. 2–6.
4. Bulgakova G.T., Kharisov R.Ya., Sharifullin A.R., Pestrikov A.V., Optimizing the acidizing operations of horizontal wells in carbonate reservoirs (In Russ.), Neftyanoe khozyaystvo – Oil Industry, 2013, no. 6, pp. 102–105.
5. Hoefner M.L., Fogler H.S., Pore evolution and channel formation during flow and reaction in porous media, AIChE Journal, 1988, V. 34, no. 1, pp. 45-54.
6. Barenblatt G.I., Entov V.M., Ryzhik V.M., Dvizhenie zhidkostey i gazov v
prirodnykh plastakh (The movement of fluids and gases in natural reservoirs),
Moscow: Nedra Publ., 1984, 207 p.
7. Zakirov T.R., Nikiforov A.I., Acid effect on multilayer oil reservoirs (In Russ.), Vychislitel'nye metody i programmirovanie, 2013, V. 14, no. 50–57.
8. Kotyakhov F.I., Fizika neftyanykh i gazovykh kollektorov (Physics of oil and gas reservoirs), Moscow: Nedra Publ., 1977, 288 p.
9. Zakirov T.R., Nikiforov A.I., Modeling acid impact in water flooding oil reservoir (In Russ.), Neftyanoe khozyaystvo – Oil Industry, 2012, no. 6, pp. 62–65.

Key words:mathematic modeling, thermal conductivity, acid, function distribution.

The study deals with the problem of thermal exposure on the oil reservoir using acidizing of near-wellbore zone. There is a comparison of the oil recovery factor in cases of conventional water flooding, water flooding with the injection of coolant, water flooding with acid exposure and mixed technology. The obtained results show that the joint exposure of heat and acid treatment is the most effective mode of the oil recovery.
References
1. Burzhe Zh., Surio P., Kombarnu M., Termicheskie metody povysheniya nefteotdachi plastov (Thermal EOR methods) translated from French, Moscow: Nedra Publ., 1988, 422 p. Original
2. Surguchev M.L., Vtorichnye i tretichnye metody uvelicheniya nefteotdachi
plastov (Secondary and tertiary EOR methods), Moscow: Nedra Publ., 1985,
308 p.
3. Bulgakova G.T., Sharifullin A.R., Kharisov R.Ya. et al., Laboratory and theoretical researches of matrix acid-based carbonates processing (In Russ.),
Neftyanoe khozyaystvo – Oil Industry, 2010, no. 5, pp. 2–6.
4. Bulgakova G.T., Kharisov R.Ya., Sharifullin A.R., Pestrikov A.V., Optimizing the acidizing operations of horizontal wells in carbonate reservoirs (In Russ.), Neftyanoe khozyaystvo – Oil Industry, 2013, no. 6, pp. 102–105.
5. Hoefner M.L., Fogler H.S., Pore evolution and channel formation during flow and reaction in porous media, AIChE Journal, 1988, V. 34, no. 1, pp. 45-54.
6. Barenblatt G.I., Entov V.M., Ryzhik V.M., Dvizhenie zhidkostey i gazov v
prirodnykh plastakh (The movement of fluids and gases in natural reservoirs),
Moscow: Nedra Publ., 1984, 207 p.
7. Zakirov T.R., Nikiforov A.I., Acid effect on multilayer oil reservoirs (In Russ.), Vychislitel'nye metody i programmirovanie, 2013, V. 14, no. 50–57.
8. Kotyakhov F.I., Fizika neftyanykh i gazovykh kollektorov (Physics of oil and gas reservoirs), Moscow: Nedra Publ., 1977, 288 p.
9. Zakirov T.R., Nikiforov A.I., Modeling acid impact in water flooding oil reservoir (In Russ.), Neftyanoe khozyaystvo – Oil Industry, 2012, no. 6, pp. 62–65.


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