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Prospects of combined proppant-acid hydraulic fracturing in Samaraneftegas JSC

Authors: A.N. Parfenov, A.E. Letichevskiy, A.N. Nikitin, N.A. Ostankov (Samaraneftegas JSC, RF, Samara), I.D. Latypov, R.Ya. Kharisov (RN-UfaNIPIneft LLC, RF, Ufa)

Key words: carbonates, acid fracturing, hydraulic fracturing, well acidizing, large volume acid treatment, flow rate decreasing, duration of increased flow rate.

This paper briefly describes the history and experience of acid treatment almost from the beginning of the Samara region deposits development. A separate chapter is devoted to lessons learned of hydraulic fracturing with proppant in wells that penetrated the carbonate reservoir; the analysis of follow-up working of the wells has become a prerequisite for the initiation of the project of the combined acid and proppant fracturing.
References
1. Parfenov A.N., Shashel' V.A., Sitdikov S.S., Features and experience of proppant hydrofracturing application at Samaraneftegaz OAO (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2007, no. 11, pp. 38-41.
2. Parfenov A.N., Sitdikov S.S., Evseev O.V. et al., Particularities of Hydraulic Fracturing in Dome-Type Reservoirs of Samara Area in the Volga-Urals Basin (In Russ.), SPE 115556, 2008.
3. Parfenov A.N., Letichevskiy A.E., Evseev O.V. et al., Fracturing of high viscosity oil reservoir in the Samara region (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2014, no. 1, pp. 72-77.
4. Gilaev G.G., Manasyan A.E., Letichevskiy A.E. et al., Hydraulic fracturing as field development instrument in Samara region (In Russ.), Neftyanoe
khozyaystvo = Oil Industry, 2014, no. 11, pp.65-69.
5. Williams B.B., Gidley J.L., Schechter R.S., Acidizing fundamentals, New York: SPE Monograph Series, 1979, 124 p.

Key words: carbonates, acid fracturing, hydraulic fracturing, well acidizing, large volume acid treatment, flow rate decreasing, duration of increased flow rate.

This paper briefly describes the history and experience of acid treatment almost from the beginning of the Samara region deposits development. A separate chapter is devoted to lessons learned of hydraulic fracturing with proppant in wells that penetrated the carbonate reservoir; the analysis of follow-up working of the wells has become a prerequisite for the initiation of the project of the combined acid and proppant fracturing.
References
1. Parfenov A.N., Shashel' V.A., Sitdikov S.S., Features and experience of proppant hydrofracturing application at Samaraneftegaz OAO (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2007, no. 11, pp. 38-41.
2. Parfenov A.N., Sitdikov S.S., Evseev O.V. et al., Particularities of Hydraulic Fracturing in Dome-Type Reservoirs of Samara Area in the Volga-Urals Basin (In Russ.), SPE 115556, 2008.
3. Parfenov A.N., Letichevskiy A.E., Evseev O.V. et al., Fracturing of high viscosity oil reservoir in the Samara region (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2014, no. 1, pp. 72-77.
4. Gilaev G.G., Manasyan A.E., Letichevskiy A.E. et al., Hydraulic fracturing as field development instrument in Samara region (In Russ.), Neftyanoe
khozyaystvo = Oil Industry, 2014, no. 11, pp.65-69.
5. Williams B.B., Gidley J.L., Schechter R.S., Acidizing fundamentals, New York: SPE Monograph Series, 1979, 124 p.



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