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Neftyanaya Provintsiya 
No.2(30),2022

Evaluation of the technological effectiveness of chemical stimulation methods applied to the bottomhole zone (BHZ)

S.A. Dolgih, D.I. Gajsina

DOI: https://doi.org/10.25689/NP.2022.2.120-133

PP.120-133

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Abstract

The paper discusses the evaluation of the technological effectiveness of chemical stimulation methods applied to the bottomhole zone.

The regulation of hydrocarbon production processes includes a variety of enhanced oil recovery methods, which include the application of bottomhole stimulation techniques. The BHZ is the area of the reservoir around the wellbore that is subjected to the most intense stimulation during oil and gas recovery operations. Often during the operation of a well, due to inadequate techniques of penetration of productive formations, natural permeability of rocks in the bottomhole zone deteriorates, productivity decreases, etc.

Chemical treatment of the bottom-hole zone (BHZ) includes various bottom-hole zone treatments to increase BHZ permeability by cleaning pore channels from resins, asphaltenes, clays, salts and other materials deposited in them.

Key words:

bottom-hole zone, bottom-hole zone treatment, hydrochloric acid treatment, clay acid treatment

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Authors

S.A. Dolgih, PhD, Associate Professor, Kazan Federal University, Institute of Geology and Petroleum Technology

18, Kremlevskaya st., Kazan, 420008, Russian Federation

E-mail: dolgih_s_a@mail.ru 

 

D.I. Gajsina, Kazan Federal University, Institute of Geology and Petroleum Technology

18, Kremlevskaya st., Kazan, 420008, Russian Federation

E-mail: darika31@mail.ru

For citation:

S.A. Dolgih, D.I. Gajsina Primenenie himicheskih metodov vozdejstvija na prizabojnuju zonu plasta (PZP) [Evaluation of the technological effectiveness of chemical stimulation methods applied to the bottomhole zone (BHZ)]. Neftyanaya Provintsiya, No. 2(30), 2022. pp. 120-133. DOI https://doi.org/10.25689/NP.2022.2.120-133. EDN ULJXEC (in Russian)

 
 
 

   © S.A. Dolgih, D.I. Gajsina, 2022
       This is an open access article under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)