Scientific and technical journal

«Geology, geophysics and development of oil and gas fields»

ISSN 2413-5011

Geology, geophysics and development of oil and gas fields
Statistical analysis of results of hydrochloric acid treatment of wells bottomhole zone at Karazhanbas field

UDC: 622.276.6
DOI: 10.33285/2413-5011-2023-8(380)-58-63

Authors:

ZHETEKOVA LYAZZAT B.1,
KARAZHANOVA MARAL K.1,
KOILYBAYEV BAGDAT N.2,
KIRISENKO OLEG G.3

1 The Caspian University of Technology and Engineering named after Sh. Yessenov, Aktau, Republic of Kazakhstan
2 Karazhanbasmunay, Aktau, Republic of Kazakhstan
3 The Oil and Gas Institute of the Ministry of Science and Education of the Republic of Azerbaijan, Baku, Republic of Azerbaijan

Keywords: well, analysis, collectors, deposit, reservoir

Annotation:

This paper is devoted to the actual problem of oil production intensification at a field developed under complicated conditions. The authors consider the use of hydrochloric acid treatment at Karazhanbas deposit. The paper presents the results of a statistical analysis of the efficiency of hydrochloric acid injection to the wells bottom-hole zone in the deposits of high-viscosity oil. According to the results of the study of rocks solubility at different concentrations of hydrochloric and hydrofluoric acids, it was found that with an increase in the concentration of acids, the solubility indicators increase. As a result of the performed statistical analysis, empirical dependences of solubility on the concentration of hydrochloric and hydrofluoric acids were obtained. The given analysis of the use of hydrochloric acid treatment revealed positive results, which confirms the effectiveness of the considered method.

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