Published August 2022, Pg. 15-21

Section: Well drilling

UOT: 622.244.442

DOI: 10.37474/0365-8554/2022-08-15-21

The ways of elimination of thief zones in the wells drilled by sidetrack

R.M. Zeynalov PhD in Tech. Sc. - ”Oil-Gas Scientific Research Design” Institute

Yu.A. Ibrahimov - Department of Training, Education and Certification

N.A. Kazimova - “Azneft” PU

The paper provides the data on the properties and features of quick hardening plugging mixtures, gypsum and gypsum-cement mortars. The agents applied for changing the main technological aspects and the regulation of their properties are shown.

Conditional categories on the intensity of thief zones, the recommendations on the ratio of the major components of gypsum-cement mixture for plugging in thief zones are presented as well. 

The methods for delivery of the mixture to the thief zones depending on the depth of the zones and kickoff in the column are reviewed.

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