On the issue of potential application of electrical conductivity in assessing the corrosive activity of acid solutions

This paper evaluates the dependence of the skin factor on various channel parameters in the application of controlled radial reservoir penetration, taking into account the available experience in optimizing wellbore treatment parameters based on the dynamics of changes in skin-factor values. The following variable parameters were considered: channel length, channel diameter, initial permeability of the producing formation, and the position of the channels relative to the top of the formation.

According to the results of hydrodynamic simulation, it was found that channel diameter directly affects the skin factor; however, for the cases considered, the skin factor values remain within a narrow range. At the same time, each subsequent increase in wellbore diameter produces a weaker effect in reducing the skin factor.

It has been determined that the technology of controlled radial reservoir stimulation yields a pronounced effect for reservoirs with permeability values up to 100 mD, while for reservoirs with permeability in the range of 100–200 mD, the effect is minimal. The placement of channels in the reservoir should be determined based on the geological and technical characteristics of the wellbore zone, as the change in the skin factor is negligible. It has been shown that the base channel model in controlled radial reservoir stimulation represents the optimal implementation option.

1. Akimov O.V., Kempf K.V., Shkarin D.V., Donskoy A.V., Bashirov A.I., Makarenko V.A., Kasimov D.L., Lyagov A.V., Lyagov I.A. (2024). Application of radial drilling technology at the North‑Khosedayu field / Oil industry, 4 (Issue 1206), pp. 28–32.

2. Ziyatdinov I.G. (2024). Methodology of radial formation drilling to enhance hydrocarbon production during geological exploration /In: Proceedings of the 51st International scientific and technical conference of young scientists, postgraduates and students dedicated to the 80th anniversary of Devonian oil. Ufa, 2024, pp. 272–277.

3. Makarenko V.A., Bashirov A.I., Lyagov I.A., Anokhin A.V.(2023). Radial formation drilling as a method of production intensification during geological exploration works (G&R) / Drilling and oil, 11. pp. 12–14.

4. Solovyev I.B., Solovyeva V.N. (2008). Optimization of well treatment process parameters based on skin factor dynamics using actual data/ Construction of oil and gas wells on land and offshore, 10. pp. 36–40.

5. Sukhodanova S.S., Fayzullin R.R., Gerasimenko P.N., Ivanova V.A., Baranov S. S., Yunusova M.R., Maksakov K.I. (2022). Radial drilling technologies in carbonate formations as a method to increase oil production: From theory to large scale field testing (OPR) / PROneft. Professional about oil, 7, No. 3 (25). pp. 52–62.

6. Shaidullin V.A., Folomeev A.E., Vakhrushev S.A., Khatmullin A.R., Taipov I.A., Magadiev A.F. (2022). Testing of a new technology for directional radial drilling of channels with subsequent acid treatment of the reservoir / Oil industry, 7 (Issue 1185). pp. 108–116.