No.2(42),2025 PP.89-98

Neftyanaya provintsiya No. 2(42), 2025

Analysis of man-made impact parameters in wells with column circulation

L.I. Garipova, D.R. Khayarova
DOI: https://doi.org/10.25689/NP.2025.2.89-98

Abstract

Acid treatment of wells is an effective method of increasing well productivity. However, increasing the pressure to values exceeding the compressive or tensile strength of rocks leads to both rock deformation and destruction of the annular cement stone and the creation of cracks. The acid composition, penetrating into cracks and actively interacting with the annular cement stone, destroys it. The consequence of this process is the occurrence of behind-the-casing circulation with an inflow from overlying or underlying watered interlayers. The occurrence of ZKZ during well development and operation directly affects the increase in water cut of production and a decrease in the recovery of reserves in the target formation. Identification of complicating factors affecting the occurrence of behind-the-casing circulation is an urgent task of increasing the efficiency of acid treatments. The paper analyzes and summarizes the experience of implementing well acid treatment technologies with the identification of complicating factors affecting the occurrence of behind-the-casing circulation. Geological and technological parameters influencing the occurrence of behind-the-casing circulation to the wells of the production fund after acid treatments have been identified. It is recommended to conduct additional studies and scientific and technical work to prevent behind-the-casing circulation in wells during acid treatments at production facilities.

Key words:

column circulation, bottom-hole zone treatment, acid composition, pressure, flow rate

References

1. Bakhtiyarov, G.A. Causes of behind-the-casing fluid circulation during development of the YuV11 and YuV12 formations / G.A. Bakhtiyarov, V.G. Volkov, R.Kh. Gilmanova [et al.]. – Text: electronic // NovaInfo. – 2016. – No. 49. – P. 65-72. (in Russian)

2. Nabiullin, A.Sh. Study of the causes of leaks in production strings of production wells. Development of preventive methods for casing protection / A.Sh. – DOI: 10.24412/2076-6785-2023-8-88-93. – Text: electronic // Exposure Oil Gas. – 2023. – No. 8. – P. 88-93. (in Russian)

3. Aleshkin, S.V. The problem of behind-the-casing circulation in wells of the Volga-Ural region / S.V. Aleshkin, S.A. Khanzhin, A.V. Belosludtsev. - Text: electronic // Drilling and Oil. Special issue. - 2023. - No. 2. - P. 73-75. (in Russian)

4. Krasnov, D.Yu. Reducing the risk of behind-the-casing circulation during chemical stimulation of the formation / D.Yu. Krasnov, M.I. Dodova. - Text: electronic // Oil. Gas. Innovations. - 2018. - No. 9. - P. 42-47. (in Russian)

5. Garipova, L.I. Analysis of factors influencing the occurrence of behind-the-casing circulation / L.I. Garipova, D.R. Khayarova, E.M. Abusalimov [et al.] // Oil industry. – 2025. – No. 3. – P. 68-72. – https://doi.org/10.24887/0028-2448-2025-3-68-72 (in Russian)

6. Zemtsov, Yu.V. Multivariate analysis of the efficiency of eliminating behind-the-casing water circulation in oil wells / Yu.V. Zemtsov, A.S. Ustyugov. – Text: electronic // Oilfield Business. – 2017. – No. 2. – P. 55-59. (in Russian)

Authors

L.I. Garipova, PhD, Senior Lecturer, Oil and Gas Field Development Department, Almetyevsk State University of Technology – Higher Petroleum School
186A, Sovetskaya Str., Almetyevsk, 423452, Russian Federation
E-mail: garipova@agni-rt.ru

D.R. Khayarova, PhD, Senior Lecturer, Oil and Gas Field Development Department, Almetyevsk State University of Technology – Higher Petroleum School
186A, Sovetskaya Str., Almetyevsk, 423452, Russian Federation
E-mail: hayarova@agni-rt.ru

For citation:

L.I. Garipova, D.R. Khayarova Analiz parametrov tehnogennogo vozdeistvia v skvajinah s zakollonnoi cirkulyaciei [Analysis of man-made impact parameters in wells with column circulation]. Neftyanaya Provintsiya, No. 2(42), 2025. pp. 89-98. DOI https://doi.org/10.25689/NP.2025.2.89-98. EDN PGVCHA (in Russian)

© Non-governmental organization Volga-Kama Regional Division of the Russian Academy of Natural Science, 2015-2025 All the materials of the journal are available under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)

Analysis of man-made impact parameters in wells with column circulation L.I. Garipova, D.R. Khayarova DOI: https://doi.org/10.25689/NP.2025.2.89-98

Key words: column circulation, bottom-hole zone treatment, acid composition, pressure, flow rate

Analysis of man-made impact parameters in wells with column circulation

L.I. Garipova, D.R. Khayarova
DOI: https://doi.org/10.25689/NP.2025.2.89-98

Key words:

column circulation, bottom-hole zone treatment, acid composition, pressure, flow rate